An alarm device for loosening the mold fixation of a cold heading machine

Abstract

The present invention discloses an alarm device for the loosening of the mold of a cold heading machine, comprising an equipment housing, a punch mold shell, a punch mold shell having a punch cavity arranged on the upper side thereof, and further comprising: a fixing rod is installed on the surface of the punch mold cavity, and a spring shaft is installed in the middle of the fixing rod, and an indicator block is fixedly installed on one side of the spring shaft; a fixing block installed on the surface of the punch mold cavity is arranged on one side of the fixing rod; a through hole structure is provided on the inner side of the punch mold cavity, and one end of the push rod close to the hole structure is spherically arranged, and the spherical structure forms a snap-fit ​​connection with the hole structure on the surface of the punch mold shell, and the other end of the push rod is fitted with the surface of the indicator block. The present invention belongs to the technical field of energy vehicle parts production, and the technical effect achieved is: the present invention can detect the breakage of bolts in time, and issue a warning in time, thereby avoiding accidents.

Description

Technical Field

[0001] The invention relates to the technical field of new energy automobile parts production, and in particular to an alarm device for loosening of a cold heading machine die. Background Art

[0002] Some core functional parts in new energy vehicles are produced by cold heading process. Due to the large size of the parts, the forming pressure is very high. During the cold heading production process, the fixing bolts are under great pressure and often quickly break due to fatigue, causing the punch shell to fly out of the punch cavity and cause serious accidents. Since the breakage of the bolt is an unpredictable event, and the bolt and the stopper are installed inside the punch cavity, the breakage of the bolt cannot be detected from the outside. Therefore, for cold heading production, it is faced with a huge problem, and it is necessary to find a timely alarm method to detect the breakage of the bolt in time.

[0003] At present, there is no special device on the cold heading machine to avoid this problem. The existing countermeasure is that the operator estimates a certain amount of production in advance during the production process and replaces the bolts in advance without waiting for them to break. The above method is easy to cause waste, and the bolts fail to play a sufficient role. Secondly, the method is unreliable. When the bolts break after a short working time, accidents will still occur.

[0004] Therefore, there is an urgent need for an alarm device for the loosening of the cold heading machine mold. Summary of the invention

[0005] To this end, the present invention provides an alarm device for loosening of a cold heading machine die to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] According to a first aspect of the present invention, a cold heading machine mold loosening alarm device comprises an equipment housing, a punch mold shell, a punch mold shell having a punch cavity disposed on the upper side of the punch mold shell, a fixing bolt installed on one side of the punch mold cavity, and a punch block installed on the inner side of the fixing bolt to form a rigid connection of the mold, and further comprises:

[0008] A fixing rod is installed on the surface of the male mold cavity, and a spring shaft is installed in the middle of the fixing rod, and an indicator block is fixedly installed on one side of the spring shaft;

[0009] A fixing block installed on the surface of the male mold cavity is provided on one side of the fixing rod, a spring top bead is installed on the inner side of the fixing block, and a hole structure corresponding to the spring top bead is opened on the side of the indicator block close to the fixing block, and the hole structure and the spring top bead form a snap connection;

[0010] A through hole structure is provided on the inner side of the punch cavity, and a push rod is installed in the through hole structure. A hole structure corresponding to the push rod is provided on the surface of the punch mold shell. One end of the push rod close to the hole structure is spherical, and the spherical structure is snap-fitted with the hole structure on the surface of the punch mold shell. The other end of the push rod is fitted with the surface of the indicator block.

[0011] Furthermore, the diameter of the spherical structure at the lower end of the push rod is larger than the diameter of the spherical structure provided at one end of the spring push ball.

[0012] Furthermore, a side of the indicating block close to the spring top bead is rounded.

[0013] Furthermore, the device housing is also equipped with a laser transmitter corresponding to the indicator block, and a laser receiver installed on the outside of the device is provided at a corresponding position of the laser transmitter, and the laser receiver is electrically connected to a PLC control module built into the device;

[0014] The position of the indicator block is monitored in real time. When the indicator block pops up, the popped-up indicator block blocks the laser beam emitted from the laser transmitter. The laser receiver cannot receive the laser beam from the laser transmitter, and the PLC controls the cold heading machine to shut down urgently.

[0015] Furthermore, the PLC control module is also electrically connected to an angle sensor disposed in the crankshaft of the cold heading machine;

[0016] When the crankshaft angle is at 110°, the angle sensor sends a signal, and the laser transmitter emits a short laser beam. If all indicator blocks are in a horizontal position, the laser beam can reach the laser receiver smoothly, and the cold heading machine operates normally.

[0017] If one or more indicator blocks are in a vertical position, the indicator blocks will block the laser beam, and the laser receiver will not be able to receive the laser signal. The PLC will control the cold heading machine to shut down urgently through the electrical system.

[0018] The present invention has the following advantages:

[0019] The present invention can detect the breakage of the bolt in time and issue a warning in time, thereby avoiding the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front cross-sectional view of an alarm device for preventing a cold heading machine mold from being loosened is provided in some embodiments of the present invention.

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the lifting of the indicator block.

[0022] Figure 3A side view of the connection between a laser transmitter and a laser receiver of a cold heading machine die fixation loose alarm device provided in some embodiments of the present invention.

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of lifting the indicator block;

[0024] Figure 5 A module connection diagram of an alarm device for loosening the mold fixation of a cold heading machine provided in some embodiments of the present invention.

[0025] In the figure: 1. punch shell, 2. punch cavity, 3. punch stopper, 4. fixing bolt, 5. fixing rod, 6. spring shaft, 7. indicator block, 8. ejector rod, 9. fixing block, 10. spring ejector ball, 11. laser transmitter, 12. laser receiver. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, a cold heading machine mold fixing loose alarm device in the embodiment of the first aspect of the present invention comprises a punch mold shell 1, a punch mold shell 1 is provided with a punch mold cavity 2 on the upper side, a fixing bolt 4 is installed on one side of the punch mold cavity 2, and a punch block 3 is installed on the inner side of the fixing bolt 4 to form a rigid connection of the mold;

[0029] A fixing rod 5 is installed on the surface of the male mold cavity 2, and a spring shaft 6 is installed in the middle of the fixing rod 5, and an indicator block 7 is fixedly installed on one side of the spring shaft 6;

[0030] A fixing block 9 mounted on the surface of the male mold cavity 2 is provided on one side of the fixing rod 5, a spring top bead 10 is installed on the inner side of the fixing block 9, a hole structure corresponding to the spring top bead 10 is provided on the side of the indicator block 7 close to the fixing block 9, and the hole structure and the spring top bead 10 are engaged and connected, and the side of the indicator block 7 close to the spring top bead 10 is rounded to prevent the edge of the indicator block 7 set at a right angle from affecting the lifting action of the indicator block 7;

[0031] A through hole structure is provided on the inner side of the punch cavity 2, and a push rod 8 is installed in the through hole structure. A hole structure corresponding to the push rod 8 is provided on the surface of the punch mold shell 1. One end of the push rod 8 close to the hole structure is spherically arranged, and the spherical structure is engaged with the hole structure on the surface of the punch mold shell 1. The other end of the push rod 8 is fitted with the surface of the indicator block 7.

[0032] The diameter of the spherical structure at the lower end of the push rod 8 is larger than the diameter of the spherical structure provided at one end of the spring push ball 10;

[0033] Specifically, if Figure 1 As shown, in the normal state, the indicating block 7 and the spring top bead 10 form a snap connection, so that the indicating block 7 can be fixed by the spring top bead 10, and the indicating block 7 and the fixing rod 5 are vertically arranged, so that the spring shaft 6 is in a tensioned energy storage state, and at the same time, the lower end of the indicating block 7 and the upper end of the top rod 8 are fitted, so that the slight movement of the top rod 8 can be transmitted to the indicating block 7;

[0034] like Figure 2 As shown, when the fixing bolt 4 breaks, the punch cavity 2 is displaced relative to the punch shell 1, so that the lower end of the push rod 8 is disengaged from the engagement with the hole structure on the surface of the punch shell 1, causing the push rod 8 to be displaced in the vertical direction, thereby lifting the indicator block 7, so that the hole structure on the surface of the indicator block 7 is disengaged from the spring top bead 10, and the indicator block 7 is no longer positioned by the spring top bead 10. Subsequently, the spring shaft 6 is used to rotate the indicator block 7 to lift the indicator block 7, so that it can be observed that the indicator block 7 at the current position protrudes from the indicator blocks 7 corresponding to the unbroken positions of the other fixing bolts 4, so that the fixing bolts 4 at the current broken position can be replaced in time.

[0035] The technical effect achieved by the above embodiment is: it can timely warn the bolt breakage time and corresponding position, so as to replace the broken bolt in time to avoid the waste of bolts and accidents easily caused by short-term bolt breakage.

[0036] Example 2

[0037] like Figure 3 and Figure 4 As shown, an alarm device for loosening the mold of a cold heading machine includes all the contents of Example 1. In addition, a laser transmitter 11 corresponding to the indicator block 7 is installed on the device housing, and a laser receiver 12 installed on the outside of the device is arranged at a corresponding position of the laser transmitter 11, and the laser receiver 12 is electrically connected to a PLC control module built into the device;

[0038] like Figure 4In the process, when the indicator block 7 pops up, the popped-up indicator block 7 can block the laser beam emitted from the laser transmitter 11, so that the laser receiver 12 cannot receive the laser beam from the laser transmitter 11, thereby using PLC to control the cold heading machine to shut down urgently until the bolt at the broken part is replaced and manually reset.

[0039] Example 3

[0040] like Figure 5 As shown, a cold heading machine mold fixing loose alarm device includes all the contents of embodiment 1, and in addition, the PLC control module is also electrically connected to the angle sensor set in the crankshaft of the cold heading machine;

[0041] When the crankshaft angle is at 110°, the angle sensor sends a signal, and the laser transmitter 11 sends a short beam of laser. At this moment, if all the indicator blocks 7 are in a horizontal position, the laser beam can smoothly reach the laser receiver 12. If one or more indicator blocks 7 are in a vertical position, the indicator block 7 will block the laser beam at this moment, and the laser receiver 12 will not receive the laser signal. The PLC makes a judgment based on whether the laser receiver 12 receives the laser. Once it detects that the laser receiver 12 does not receive the laser signal, it means that at least one indicator block 7 is in a vertical state, and it also indirectly detects that the fixing bolt is broken. At this moment, the PLC will control the cold heading machine to stop immediately through the electrical system, thereby avoiding the occurrence of accidents. At the same time, the system alarms to remind the operator to check.

Claims

1. An alarm device for preventing a mold of a cold heading machine from being loosened, comprising an equipment housing, a punch mold shell (1), a punch mold shell (1) having a punch cavity (2) disposed on the upper side of the punch mold shell (1), a fixing bolt (4) installed on one side of the punch cavity (2), and a punch stopper (3) installed on the inner side of the fixing bolt (4) to form a rigid connection of the mold, characterized in that: Also includes: A fixing rod (5) is installed on the surface of the male mold cavity (2), a spring shaft (6) is installed in the middle of the fixing rod (5), and an indicator block (7) is fixedly installed on one side of the spring shaft (6); A fixing block (9) mounted on the surface of the male mold cavity (2) is provided on one side of the fixing rod (5), a spring top bead (10) is installed on the inner side of the fixing block (9), and a hole structure corresponding to the spring top bead (10) is opened on the side of the indicating block (7) close to the fixing block (9), and the hole structure and the spring top bead (10) form a snap-fit ​​connection; A through hole structure is provided on the inner side of the punch cavity (2), and a push rod (8) is installed in the through hole structure. A hole structure corresponding to the push rod (8) is provided on the surface of the punch shell (1). One end of the push rod (8) close to the hole structure is spherically arranged, and the spherical structure is snap-fitted with the hole structure on the surface of the punch shell (1). The other end of the push rod (8) is fitted with the surface of the indicator block (7).

2. The alarm device for the loosening of the cold heading machine mold according to claim 1 is characterized in that: The diameter of the spherical structure at the lower end of the push rod (8) is larger than the diameter of the spherical structure arranged at one end of the spring push ball (10).

3. The alarm device for preventing the mold of a cold heading machine from being loosened according to claim 1 is characterized in that: The side of the indicating block (7) close to the spring top bead (10) is arranged with a rounded corner.

4. The alarm device for preventing the mold of a cold heading machine from being loosened according to claim 1 is characterized in that: The device housing is also equipped with a laser transmitter (11) corresponding to the indicator block (7); a laser receiver (12) installed on the outside of the device is provided at a corresponding position of the laser transmitter (11); and the laser receiver (12) is electrically connected to a PLC control module built into the device; The position of the indicator block (7) is monitored in real time. When the indicator block (7) pops up, the popped-up indicator block (7) blocks the laser beam emitted from the laser transmitter (11), and the laser receiver (12) cannot receive the laser beam from the laser transmitter (11). Then, the PLC controls the cold heading machine to shut down urgently.

5. The alarm device for the loosening of the cold heading machine mold according to claim 4 is characterized in that: The PLC control module is also electrically connected to an angle sensor disposed in the crankshaft of the cold heading machine; When the crankshaft rotation angle is at 110°, the angle sensor sends a signal, and the laser transmitter (11) emits a short laser beam. If all the indicator blocks (7) are in a horizontal position, the laser beam can smoothly reach the laser receiver (12), and the cold heading machine operates normally. If one or more indicator blocks (7) are in a vertical position, the indicator blocks (7) block the laser beam, the laser receiver (12) cannot receive the laser signal, and the PLC controls the cold heading machine to shut down urgently through the electrical system.

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