CN104907645A - Anti-blocking in-mold tapping machine - Google Patents

Abstract

The invention discloses an anti-blocking in-mold tapping machine which comprises a machine body, a screw rod, a threaded sleeve, a driving gear, a driven gear, a first transmission gear set, a second transmission gear set, a tapping chuck, a screw tap, an induction probe, a controller, a transmission clutch mechanism and a speed reducing mechanism. The invention has simple structure and reasonable design, can ensure the normal work of the in-mold tapping machine when being matched with a punch with variable stroke for working, and can also ensure the anti-blocking of the in-mold tapping machine when the punch encounters abnormal or normal shutdown, thereby meeting the requirements of quick and safe production.

Description

An anti-jamming in-mold tapping machine

technical field

The invention relates to an in-mold tapping device, in particular to an in-mold tapping machine capable of preventing jamming when running beyond a set stroke.

Background technique

The in-mold tapping machine is a tapping device that uses the power of the punch to drive the opening and closing of the mold as the power source to realize the tapping of the in-mold parts. The existing in-mold tapping machine is based on the working stroke of the punching machine to set the working stroke in the in-mold tapping machine, and it cannot be changed after setting. Specifically, it is to adjust the transmission gear of the in-mold tapping machine The transmission ratio and the number of transmission gears make the two work together normally.

Due to the limitation of the internal structure, the current in-mold tapping machine can only cooperate with the punch press with fixed stroke, but cannot cooperate with the punch press with variable stroke. Specifically, the variable stroke punch adjusts the working stroke by changing the stroke length of the slider. After changing the stroke length of this type of punching machine, if it encounters an abnormal or normal stop, the punching slider will automatically stop at the highest point of the maximum stroke of the punching machine itself, which will cause a sudden change in the actual working stroke of the punching machine, and the working stroke cannot be adjusted. The in-mold tapping machine cannot be adapted to it, and the excess working stroke of the punch will continue to drive the parts of the in-mold tapping machine to move under force, resulting in the occurrence of in-mold tapping machine jamming, tooth punching, and overall damage.

In order to avoid the occurrence of the above situation, nitrogen springs are generally used as power to drive the in-mold tapping machine to cooperate with the variable stroke punching machine to realize tapping. However, for in-die tapping machines driven by nitrogen gas springs, the tapping speed of this type of in-mold tapping machines cannot be matched with variable stroke punching machines at more than 55 times per minute due to the thrust and reaction time of nitrogen gas springs The synchronous tapping of products at a high stamping speed cannot well meet the needs of actual use.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of existing in-mold tapping machines, and provide an in-mold tapping machine that can cooperate with a variable-stroke punch to realize fast processing and has anti-jamming functions.

To achieve the above object, the technical solution adopted in the present invention is:

An anti-seize in-mold tapping machine, including a body, a screw, a screw sleeve, a driving gear, a driven gear, a first transmission gear set, a second transmission gear set, a tapping chuck, a tap, an induction probe, and a controller , Transmission clutch mechanism, deceleration mechanism.

The screw sleeve is installed on the body, and the outer sleeve of the screw sleeve is provided with a driving gear;

The screw rod is inserted into the screw sleeve and the screw sleeve is engaged with the screw to achieve cooperation;

An induction probe is provided on the screw sleeve, and the induction probe is connected to the controller through a cable;

The tapping chuck is installed on the body, and the outer casing of the tapping chuck is equipped with a driven gear;

The first transmission gear set is installed in the body, and a gear in the gear set meshes with the driving gear to realize cooperation;

The second transmission gear set is installed in the body, and a gear in the gear set meshes with the driven gear to realize cooperation;

A transmission clutch mechanism is installed between the first transmission gear set and the second transmission gear set, and the transmission connection between the first transmission gear set and the second transmission gear set is realized through the transmission clutch mechanism;

The transmission clutch mechanism includes a cylinder, a spline hole gear, and a spline shaft gear. cooperation;

The cylinder is connected to the controller through a cable;

The spline shaft gear is connected to the main shaft of the cylinder in rotation, and can move synchronously with the main shaft of the cylinder in the axial direction;

The spline hole gear meshes with a gear in the second transmission gear set to achieve cooperation;

The spline shaft gear meshes with a gear in the first transmission gear set to achieve cooperation;

The reduction mechanism includes a 7-shaped connecting rod and a friction plate installed on the body through the rotating shaft;

One end of the 7-shaped connecting rod is connected with the main shaft of the cylinder, and the other end is provided with a friction plate, and the friction plate is aligned with the gear surface of a gear in the second transmission gear set.

As a preference, the sensing probe is a distance sensing probe.

When the present invention works, the induction probe is used to monitor the screw inserted into the screw sleeve, and the monitoring data is fed back to the controller through the cable, and the controller detects the sensing data in real time. When the screw leaves the sensing position, the distance value suddenly increases At this moment, the controller controls the main shaft of the cylinder to go down, and then drives the spline shaft gear to disengage from the first transmission gear set. At the same time, driven by the downward power of the main shaft of the cylinder, the friction plate of the 7-shaped connecting rod goes up to press against the second transmission gear The gear surface of the gear in the group is decelerated to ensure that the tapping head stops.

The invention is simple in structure and reasonable in design. When working with a variable-stroke punching machine, it can ensure the normal operation of the in-mold tapping machine and prevent the in-mold tapping machine from being stuck when the punching machine encounters an abnormality or shuts down normally. Death guarantee to meet the needs of fast and safe production.

Description of drawings

Fig. 1 is the structural representation of embodiment 1.

FIG. 2 is a schematic structural view of the spline hole gear in Embodiment 1. FIG.

FIG. 3 is a schematic structural view of the spline shaft gear in Embodiment 1. FIG.

(1) body

(2) screw

(3) screw sleeve

(4) Driving gear

(5) driven gear

(6) The first transmission gear set

(7) Second transmission gear set

(8) Cylinder

(9) Spline hole gear

(10) Spline shaft gear

(11) Tapping chuck

(12) Induction probe

(13) Controller

(14) 7-shaped connecting rod

(15) Friction plate.

Detailed ways

For the convenience of further understanding of the present invention, an embodiment is given in conjunction with the accompanying drawings to further illustrate the present invention.

Example 1:

As shown in Figures 1-3, the present invention includes a body 1, a screw rod 3, a screw sleeve 2, a driving gear 4, a driven gear 5, a first transmission gear set 6, a second transmission gear set 7, a tapping chuck 11, Screw tap, induction probe 12, controller 13, transmission clutch mechanism, deceleration mechanism.

The screw sleeve 2 is installed on the body 1, and the outer sleeve of the screw sleeve 2 is provided with a driving gear 4;

The screw rod 3 is inserted into the screw sleeve 2 and cooperates with the screw sleeve 2 through the engaged screws;

The screw sleeve 2 is provided with an induction probe 12, and the induction probe 12 is connected to the controller 13 through a cable;

The tapping chuck 11 is installed on the body 1, and the outer casing of the tapping chuck 11 is provided with a driven gear 5;

The first transmission gear set 6 is installed in the body 1, and a gear in the gear set meshes with the driving gear 4 to realize cooperation;

The second transmission gear set 7 is installed in the body 1, and a gear in the gear set meshes with the driven gear 5 to realize cooperation;

A transmission clutch mechanism is installed between the first transmission gear set 6 and the second transmission gear set 7, and the transmission connection between the first transmission gear set 6 and the second transmission gear set 7 is realized through the Weidong clutch mechanism;

The transmission and clutch mechanism includes a cylinder 8, a spline hole gear 9, and a spline shaft gear 10. The spline hole gear 6 is set on the main shaft of the cylinder 8, and the spline shaft of the spline shaft gear 10 is inserted into the spline shaft of the spline hole gear 9. In the key hole, the cooperation of the two gears is realized;

Cylinder 8 is connected with controller 13 by cable;

The spline shaft gear 10 is rotationally connected with the main shaft of the cylinder 8, and can move synchronously with the main shaft of the cylinder 8 in the axial direction;

The spline hole gear 9 meshes with a gear in the second transmission gear set 7 to realize cooperation;

The spline shaft gear 10 meshes with a gear in the first transmission gear set 6 to realize cooperation;

The reduction mechanism includes a 7-shaped connecting rod 14 and a friction plate 15 installed on the body 1 through a rotating shaft;

One end of the 7-shaped connecting rod 14 is connected with the main shaft of the cylinder 8, and the other end is provided with a friction plate 15, which is aligned with the gear surface of a gear in the second transmission gear set 7.

The above embodiments are optimized embodiments of the present invention, and are not intended to limit the present invention in any form. Any skilled person who is familiar with the profession may use the technical content disclosed above to change or modify the equivalent embodiments of equivalent changes. Any modifications, equivalent changes and amendments made to the above embodiments according to the technical essence of the present invention without departing from the principle and content of the technical method of the present invention still belong to the scope of the technical method of the present invention.

Claims (3)

1. An anti-jamming in-mold tapping machine is characterized in that: it includes a body, a screw rod, a screw sleeve, a driving gear, a driven gear, a first transmission gear set, a second transmission gear set, a tapping chuck, and a tap , induction probe, controller, transmission clutch mechanism, deceleration mechanism, the screw sleeve is installed on the body, and the outer sleeve of the screw sleeve is provided with a driving gear; Probe, the induction probe is connected to the controller through a cable; the tapping chuck is installed on the body, and the outer casing of the tapping chuck is provided with a driven gear; the first transmission gear set is installed in the body, and a gear in the gear set Mesh with the driving gear to achieve cooperation; the second transmission gear set is installed in the body, and one gear in the gear set meshes with the driven gear to achieve cooperation; the first transmission gear set and the second transmission gear set are installed with The transmission clutch mechanism realizes the transmission connection between the first transmission gear set and the second transmission gear set through the transmission clutch mechanism. 2. A kind of anti-jamming in-mold tapping machine as claimed in claim 1, characterized in that: The transmission clutch mechanism includes a cylinder, a spline hole gear, and a spline shaft gear. The cylinder is connected to the controller through a cable; the spline shaft gear is connected to the cylinder main shaft in rotation, and can move synchronously with the cylinder main shaft in the axial direction; the spline hole gear meshes with a gear in the second transmission gear set, achieve cooperation; The spline shaft gear meshes with a gear in the first transmission gear set to realize cooperation. 3. An anti-seize in-mold tapping machine according to any one of claims 1 or 2, characterized in that: the deceleration mechanism includes a 7-shaped connecting rod and a friction plate installed on the machine body through a rotating shaft; One end of the 7-shaped connecting rod is connected with the main shaft of the cylinder, and the other end is provided with a friction plate, and the friction plate is aligned with the gear surface of a gear in the second transmission gear set.