CN210634170U

CN210634170U - Tapping overload sensing punch rod in stamping die

Info

Publication number: CN210634170U
Application number: CN201921330295.3U
Authority: CN
Inventors: 阮建军
Original assignee: Huizhou Lixiang Metal Products Co ltd
Current assignee: Huizhou Lixiang Metal Products Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-29
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a tapping overload perception punch pole in a punching die, which comprises a fixed plate and a strike plate, wherein a contour sleeve is arranged in the fixed plate in a sliding way, a supporting spring is sleeved on the contour sleeve, contour screws are arranged in the contour sleeve, the heads of the contour screws are buckled and pressed on the heads of the contour sleeve, the heads of the contour sleeve are buckled and pressed in a counter bore of the fixed plate, the contour screws are in threaded connection with the strike plate, one end of the supporting spring is pressed on the fixed plate, and the other end of the supporting spring is pressed on the strike plate; still set firmly insulating sleeve in the fixed plate, be equipped with the probe spring in the insulating sleeve, be equipped with the probe on the probe spring, the probe stretch out the fixed plate and with the impingement plate between have the interval, probe spring coupling has the wire, the other end of wire is connected with the plug, the plug is connected with punch press PLC's signal acquisition mouth. The utility model discloses attack tooth overload perception jumper bar in the stamping die can avoid in the mould to attack various part components in the tooth structure and receive destruction because of the overload, has ensured production safety.

Description

Tapping overload sensing punch rod in stamping die

Technical Field

The utility model relates to a attack tooth machine technical field in the mould, especially relate to an attack tooth overload perception jumper bar in punching die.

Background

The in-mold tapping machine is an in-mold tapping device which can integrate the stamping and tapping processes; in the existing in-mold tapping method, the gearbox is driven to work by the impact of the upper die punch rod and the gearbox punch rod, and finally in-mold tapping of a stamping part is realized. In the existing in-mold tapping method, when abnormality and failure occur in the stamping process, the stamping acting force borne by the whole in-mold tapping structure exceeds the set load, so that various part components in the existing in-mold tapping structure are damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an attack tooth overload perception jumper bar in stamping die to solve the problem that above-mentioned prior art exists, make attack tooth jumper bar in the stamping die can the perception punching press effort surpass and set for the load and can be gathered the signal by punch press PLC, avoid attacking various part component in the tooth structure in the mould and receive destruction because of the overload.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a tapping overload perception jumper bar in stamping die, including fixed plate and impact plate, slide in the fixed plate and be provided with equal height sleeve of at least two, the cover is equipped with supporting spring on equal height sleeve, be provided with equal height screw in equal height sleeve, equal height screw's head withholds equal height sleeve's head, equal height sleeve's head withholds in the counter bore of fixed plate, equal height screw keep away from equal height screw's head one end stretch out equal height sleeve and with the impact plate threaded connection, supporting spring one end support on the fixed plate, the other end supports on the impact plate, the terminal surface that the fixed plate kept away from the impact plate links firmly with the bottom face of the upper die base of punch press or the top face of gearbox; an insulating sleeve is fixedly arranged in the fixing plate, a probe spring is arranged in the insulating sleeve, a probe is arranged on the probe spring, the probe extends out of one end of the fixing plate close to the impact plate and has a gap with the impact plate, the probe spring is connected with a lead, the other end of the lead is connected with a plug, and the plug is connected with a signal acquisition port of a PLC (programmable logic controller) of the punch; the fixing plate, the impact plate, the equal-height screws, the equal-height thread sleeves, the supporting springs, the probes and the probe springs are all electric conductors.

Preferably, the probe spring is fixedly connected with the insulating sleeve through a set screw, and the lead is electrically connected with the probe spring through the set screw; the fastening screw is a conductor.

Preferably, an insulating baffle is further arranged on the fixing plate corresponding to the insulating sleeve, the insulating baffle is close to the insulating sleeve and located above the insulating sleeve, the wire penetrates through the insulating baffle, and the insulating baffle is connected with the fixing plate through a baffle screw.

Preferably, the fixing plate is fixedly connected with the bottom end face of the upper die holder of the punch press or the top end face of the gearbox through two locking screws.

Preferably, a first locking screw through hole is formed in the fixing plate corresponding to the locking screw, a second locking screw through hole is formed in one end, close to the locking screw, of the impact plate, the locking screw penetrates through the first locking screw through hole, and the size of the second locking screw through hole is larger than that of the head of the locking screw.

Preferably, the fixing plate is provided with a recess corresponding to the supporting spring, and one end of the supporting spring close to the fixing plate is located in the recess.

Preferably, the support spring is a disc spring.

Preferably, the plug is inserted into the signal acquisition port.

The utility model discloses attack tooth overload perception jumper bar in the stamping die has gained following technological effect for prior art:

the utility model discloses thereby attack tooth overload perception jumper bar in the punching press mould can surpass when setting for the load at the punching press effort and switch on the circuit and gather the signal by punch press PLC to change into urgent shut down order and then avoid in the mould to attack various part components in the tooth structure and receive destruction because of the overload, ensured production safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an overload sensing punch for tapping in a stamping die of the present invention;

FIG. 2 is a top view of the punching die of the present invention with an overload sensor;

FIG. 3 is a schematic diagram of a prior art punch press;

wherein: 1-impact plate, 2-contour screw, 3-contour sleeve, 4-support spring, 5-fixing plate, 6-locking screw, 7-probe, 8-probe spring, 9-insulating sleeve, 10-fastening screw, 11-lead, 12-plug, 13-insulating baffle, 14-baffle screw, 15-locking screw first through hole, 16-locking screw second through hole, 17-punch, 18-upper die holder, 19-upper die plunger, 20-gearbox, 21-gearbox plunger and 22-countersunk hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-2: the punching die for sensing the overload of the tapping in the punching die comprises a fixed plate 5 and an impact plate 1, wherein two equal-height sleeves 3 are arranged in the fixed plate 5 in a sliding manner, an equal-height screw 2 is arranged in each equal-height sleeve 3 in a sliding manner, the head of the equal-height screw 2 is buckled on the head of the corresponding equal-height sleeve 3, the bottom end of the equal-height screw 2 extends out of the equal-height sleeve 3 to be in threaded connection with the impact plate 1, the head of the equal-height sleeve 3 is buckled in a countersunk hole 22 of the fixed plate 5, the equal-height sleeves can fix the distance between the fixed plate and the impact plate to be stable and uniform during normal load, so that a disconnected state between a probe and a punch is ensured to play a role in limiting the height and the same height, a supporting spring 4 is sleeved on each equal-height sleeve 3, in the embodiment, the supporting spring 4 is a disc spring, a concave part is arranged on the, one end of a supporting spring 4 is abutted against a fixed plate 5, the other end of the supporting spring is abutted against an impact plate 1, the supporting spring 4 is limited to be bounced off under the locking force of the equal-height screws 2, a gap is formed between the impact plate 1 and the fixed plate 5 under the action of the supporting spring 4, and when the supporting spring 4 is compressed or bounced off, the equal-height sleeve 3 can slide in the hole of the fixed plate 5 in the vertical direction to a certain extent, so that the distance between the impact plate 1 and the fixed plate 5 is reduced in overload and is restored in normal load.

One end of the fixed plate 5 far away from the impact plate 1 is fixedly connected with the bottom end surface of an upper die holder 18 of a punch press 17 or the top end surface of a gear box 20 through two locking screws 6 (refer to fig. 3), namely, the stamping die of the embodiment of the invention replaces the upper die plunger 19 or the gearbox plunger 21 with the tooth overload sensing plunger, the fixing plate 5 is provided with a first locking screw through hole 15 corresponding to the locking screw 6, the end of the impact plate 1 close to the locking screw 6 is provided with a second locking screw through hole 16, the locking screw 6 passes through the first locking screw through hole 15, the size of the second locking screw through hole 16 is larger than that of the head of the locking screw 6, the design not only can facilitate the installation and the disassembly, but also can ensure that the head of the locking screw 6 is positioned in the second locking screw through hole 16 when the impact plate 1 is close to the fixed plate 5, thereby avoiding the blocking of the movement of the impact plate 1 in overload. Since the punch 17 itself is connected to the ground, and the locking screw 6, the fixing plate 5, the equal-height screw 2, the equal-height sleeve 3, the support spring 4 and the impact plate 1 are all electric conductors, the impact plate 1 is connected to the ground of the punch 17.

An insulating sleeve 9 is fixedly arranged in the fixed plate 5, a probe spring 8 is arranged in the insulating sleeve 9, the probe spring 8 is fixedly connected with the insulating sleeve 9 through a fastening screw 10, a probe 7 is arranged on the probe spring 8, the probe spring 8 can be compressed and extended, and the probe 7 can move up and down along with the extension and retraction of the probe spring 8; the probe 7 extends out of one end of the fixed plate 5 close to the impact plate 1 and has a gap with the impact plate 1, the set screw 10 is connected with a lead 11, the other end of the lead 11 is connected with a plug 12, and the plug 12 is inserted into a signal acquisition port of the punch PLC; the probe 7, the probe spring 8 and the fastening screw 10 are all electric conductors; the fixing plate is further provided with an insulating baffle 13 corresponding to the insulating sleeve 9, the insulating baffle 13 is close to the insulating sleeve 9 and located above the insulating sleeve 9, the conducting wire 11 penetrates through the insulating baffle 13, and the insulating baffle 13 is connected with the fixing plate 5 through a baffle screw 14, so that the whole circuit is disconnected due to the fact that a gap exists between the probe 7 and the impact plate 1.

When the punch 17 adopts the punching die in the embodiment to punch and produce and carry out the in-die tapping operation, if the supporting spring 4 is normally loaded, the supporting spring can not be compressed, the interval between the probe 7 and the impact plate 1 is kept, and the circuit is in a disconnected state; if the transmission resistance of the in-mold tapping structure suddenly increases due to abnormal tapping positions (such as small bottom holes or lubrication, oil shortage and the like), the stamping acting force exceeds the set load of the in-mold tapping structure, the impact plate 1 can press the supporting spring 4 to compress until the end surface of the impact plate 1 touches the probe 7, the circuit is conducted, because the probe 7 is connected with the punch press PLC through the probe spring 8, the fastening screw 10, the lead 11 and the plug 12 at the conduction moment and is collected by the punch press PLC and converted into an emergency shutdown command, the punch press is stopped, the impact plate 1 is communicated with the ground wire of the punch press 17, the ground wire of the punch press 17 is conducted with the PLC when the probe 7 is contacted with the impact plate 1, the collected signal is converted into the emergency shutdown command after the PLC is conducted, and the 17 emergency shutdown is realized (the existing punch presses have the functions of punching press and PLC has the function of error delivery detection, namely, the continuous automatic operation mode is changed into the manual inching mode through the frequency converter so as to realize emergency stop), thereby avoiding various parts in the in-mold tapping structure from being damaged due to overload and ensuring the production safety.

In the description of the present invention, it is noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a tapping overload perception jumper bar in punching die which characterized in that: the punch press comprises a fixed plate and a punch plate, wherein at least two equal-height sleeves are slidably arranged in the fixed plate, supporting springs are sleeved on the equal-height sleeves, equal-height screws are arranged in the equal-height sleeves, the heads of the equal-height screws are buckled and pressed on the heads of the equal-height sleeves, the heads of the equal-height sleeves are buckled and pressed in counter bores of the fixed plate, one ends of the equal-height screws, far away from the heads of the equal-height screws, extend out of the equal-height sleeves and are in threaded connection with the punch plate, one ends of the supporting springs are abutted against the fixed plate, the other ends of the supporting springs are abutted against the punch plate, and the end surface of the fixed plate, far away from the punch plate, is; an insulating sleeve is fixedly arranged in the fixing plate, a probe spring is arranged in the insulating sleeve, a probe is arranged on the probe spring, the probe extends out of one end of the fixing plate close to the impact plate and has a gap with the impact plate, the probe spring is connected with a lead, the other end of the lead is connected with a plug, and the plug is connected with a signal acquisition port of a PLC (programmable logic controller) of the punch; the fixing plate, the impact plate, the equal-height screws, the equal-height thread sleeves, the supporting springs, the probes and the probe springs are all electric conductors.

2. The punching die for sensing overload during tapping in the punching die as claimed in claim 1, wherein: the probe spring is fixedly connected with the insulating sleeve through a set screw, and the lead is electrically connected with the probe spring through the set screw; the fastening screw is a conductor.

3. The punching die for sensing overload during tapping in the punching die as claimed in claim 1, wherein: the fixed plate is further provided with an insulating baffle corresponding to the insulating sleeve, the insulating baffle is close to the insulating sleeve and located above the insulating sleeve, the wire penetrates through the insulating baffle, and the insulating baffle is connected with the fixed plate through a baffle screw.

4. The punching die for sensing overload during tapping in the punching die as claimed in claim 1, wherein: the fixed plate is fixedly connected with the bottom end face of an upper die base of the punch press or the top end face of the gearbox through two locking screws.

5. The punch die of claim 4, wherein the punch die is adapted to sense overload and comprises: the fixing plate is provided with a first locking screw through hole corresponding to the locking screw, one end, close to the locking screw, of the impact plate is provided with a second locking screw through hole, the locking screw penetrates through the first locking screw through hole, and the size of the second locking screw through hole is larger than that of the head of the locking screw.

6. The punching die for sensing overload during tapping in the punching die as claimed in claim 5, wherein: the fixed plate is provided with a concave part corresponding to the supporting spring, and one end of the supporting spring, which is close to the fixed plate, is positioned in the concave part.

7. The punching die for sensing overload during tapping in the punching die as claimed in claim 6, wherein: the supporting spring is a disc spring.

8. The punching die for sensing overload during tapping in the punching die as claimed in claim 1, wherein: the plug is inserted into the signal acquisition port.