A die device for forming equipment

Abstract

The present invention discloses a die device for forming equipment, in which a portion of a central sliding column located above an upper limit plate is detachably mounted with a detachable sleeve, the upper limit plate has a through hole and a guide sleeve is detachably inserted into the through hole; a counter-radiation optical fiber sensor is provided, which has a transmitting end and a receiving end located on both sides of the central sliding column, the light emitted by the transmitting end is higher than the upper surface of the guide sleeve, and the side of the detachable sleeve has a protrusion located in the space between the transmitting end and the receiving end; the movement trajectory of the lifting block has a lower limit position range with the lower limit position point as the lowest position, and when the lifting block enters the lower limit position range, the protrusion blocks the light emitted by the transmitting end to stop the movement of the lifting drive mechanism, and the upper side of the guide sleeve is used to abut against the detachable sleeve to limit the lower limit position point of the lifting block.

Description

Technical Field

[0001] The invention relates to the technical field of metal part forming, in particular to a die device of forming equipment. Background Art

[0002] Currently, the die assembly of a molding machine includes: a lifting block driven by a lifting drive mechanism to lift and slide in a lifting guide hole of a frame; a central sliding column fixed to the lower side of the lifting block; an upper limit plate and a lower die base located below the upper limit plate, wherein the upper limit plate is fixedly connected to the lower die base as a whole via a connecting rod; wherein the central sliding column is movable upward and downward through the upper limit plate, and a punch is detachably mounted on its lower end between the upper limit plate and the lower die base. However, the current method of limiting the stroke of the lifting block is relatively dangerous. The vibration effect caused by the lifting block colliding with the upper limit plate is used to drive the vibration sensor of the upper limit plate to generate an induction signal, which is transmitted to the control system. The control system then drives the lifting drive mechanism to stop outputting, and the lifting block stops moving.

[0003] But the problem is: after the lifting block collides with the upper limit plate, the risk of damage to the upper limit plate will be significantly increased, and the violent vibration caused by the lifting block colliding with the upper limit plate will affect the entire die device, resulting in an increased risk of damage to other parts of the die device. Summary of the Invention

[0004] The purpose of the present invention is to provide a die device for forming equipment to solve the problems existing in the prior art.

[0005] The object of the present invention is achieved as follows: a die device of a forming device, comprising:

[0006] Electronic control system;

[0007] A lifting drive mechanism controlled by an electronic control system;

[0008] A lifting block driven by the lifting drive mechanism to lift and slide in the lifting guide hole of the frame;

[0009] A central sliding column fixed to the underside of the lifting block;

[0010] An upper limit plate and a lower die base located below the upper limit plate, wherein the upper limit plate is fixedly connected to the lower die base via a connecting rod to form a whole;

[0011] The central sliding column is movable in a lifting manner through the upper limit plate, and a punch is detachably mounted on its lower end and is located between the upper limit plate and the lower die base;

[0012] The portion of the central sliding column located above the upper limit plate is detachably mounted with a detachable sleeve, the upper limit plate has a through hole and a guide sleeve is detachably inserted into the through hole, the central sliding column is lifted and slidably inserted into the inner hole of the guide sleeve, and the upper side of the guide sleeve protrudes from the upper surface of the upper limit plate;

[0013] A beam-type optical fiber sensor connected to the electronic control system is mounted on the upper surface of the upper limit plate. The beam-type optical fiber sensor has a transmitting end and a receiving end located on both sides of the central sliding column. The light emitted by the transmitting end is higher than the upper surface of the guide sleeve. The side of the detachable sleeve has a protrusion located in the space between the transmitting end and the receiving end. The protrusion direction of the protrusion is perpendicular to the axis of the central sliding column.

[0014] The motion trajectory of the lifting block has a lower limit position range with the lower limit position point as the lowest position. When the lifting block enters the lower limit position range, the protrusion blocks the light emitted by the emitting end to stop the movement of the lifting drive mechanism. The upper side of the guide sleeve is used to abut against the detachable sleeve to limit the lower limit position point of the lifting block.

[0015] Furthermore, the detachable sleeve is composed of a pair of limiting shoes, which relatively embrace the central sliding column and are fixed to the central sliding column by fasteners. Both ends of each limiting shoe are integrally connected with a vertical strip-shaped butt end plate. The butt end plates of the two limiting shoes are attached to each other and fixedly connected by fasteners. The butt end plates of the two limiting shoes constitute the protrusion.

[0016] Furthermore, the opposing optical fiber sensor is equipped with a pair of sensing brackets detachably mounted on the upper surface of the upper limit plate, the two sensing brackets are located on both sides of the central sliding column, and the transmitting end and the receiving end are detachably connected to the two sensing brackets respectively.

[0017] Furthermore, the central sliding column is a cylinder, the guide sleeve is an annular sleeve, and the guide sleeve has a radially protruding annular flange that is detachably fixed on the upper surface of the upper limit plate.

[0018] Furthermore, a coupling column with a stud structure is coaxially provided on the upper end of the central sliding column. The central sliding column is detachably connected to the lifting block upward, and the coupling column is screwed into a screw hole provided on the lower side of the lifting block in a threaded manner.

[0019] Furthermore, the upper end portion of the central sliding column is configured as a hexagonal locking portion coaxial with the engaging column for easy clamping by a wrench, and the cross section of the hexagonal locking portion is a regular hexagon.

[0020] Furthermore, a docking stud is coaxially provided on the upper end of the punch, and the upper end of the punch is detachably spliced with the lower end of the center slide column, and the docking stud is screwed into the screw hole provided at the lower end of the center slide column in a threaded manner.

[0021] The beneficial effects of the present invention are:

[0022] 1. The lower limit position of the lifting block can be limited by a comprehensive use of photoelectric sensing and purely mechanical methods. When the lifting block enters the lower limit position range, the protrusion blocks the light emitted by the emitting end to stop the movement of the lifting drive mechanism. At the moment the lifting block stops moving, because the weight of the lifting block is generally large, its movement inertia is also relatively large. In order to prevent the most extreme situation from occurring, the guide sleeve can be used as a bearing component to abut against the detachable sleeve, thereby limiting the lower limit position of the lifting block by purely mechanical contact. Because the lifting block and the detachable sleeve have both slowed down, the impact of the detachable sleeve on the guide sleeve can be alleviated. Moreover, because the guide sleeve is used as the basis for bearing the impact, the impact on the upper limit plate is significantly weakened.

[0023] 2. During maintenance, you can remove the detachable sleeve, that is, remove the two limit bushings, use a wrench to clamp the hexagonal locking part, and twist the center slide column to separate the center slide column from the lifting block, so that the center slide column can be replaced as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the general assembly drawing of the present invention.

[0025] Figure 2 yes Figure 1 Enlarged view of part A in .

[0026] Figure 3 This is a schematic diagram of the layout of the through-beam fiber optic sensor. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 The present invention is further described with reference to the accompanying drawings and specific examples.

[0028] like Figure 1-3 As shown, a die device of a forming device comprises:

[0029] Electronic control system;

[0030] A lifting drive mechanism controlled by an electronic control system;

[0031] A lifting block 2 driven by a lifting drive mechanism to lift and slide in a lifting guide hole 1 of the frame;

[0032] A central sliding column 3 fixed to the lower side of the lifting block 2;

[0033] The upper limit plate 10 and the lower die base 12 are located below the upper limit plate 10 . The upper limit plate 10 is fixedly connected to the lower die base 12 through a connecting rod 11 to form a whole.

[0034] The central sliding column 3 is movable in a lifting manner through the upper limit plate 10 , and a punch 4 is detachably mounted on the lower end thereof and is located between the upper limit plate 10 and the lower die base 12 .

[0035] The part of the above-mentioned center slide column 3 above the upper limit plate 10 is detachably installed with a detachable sleeve. The upper limit plate 10 has a through hole and a guide sleeve 6 is detachably inserted into the through hole. The center slide column 3 is inserted into the inner hole of the guide sleeve 6 for lifting and sliding. The upper side of the guide sleeve 6 protrudes from the upper plate surface of the upper limit plate 10.

[0036] A counter-beaming optical fiber sensor 8 connected to the electronic control system is installed on the upper surface of the upper limit plate 10. The counter-beaming optical fiber sensor 8 has a transmitting end 8a and a receiving end 8b located on both sides of the central sliding column 3. The light emitted by the transmitting end 8a is higher than the upper surface of the guide sleeve 6. The side of the detachable sleeve has a protrusion located in the space between the transmitting end 8a and the receiving end 8b, and the protruding direction of the protrusion is perpendicular to the axis of the central sliding column 3.

[0037] The motion trajectory of the lifting block 2 has a lower limit position range with the lower limit position point as the lowest position. When the lifting block 2 enters the lower limit position range, the protrusion blocks the light emitted by the emitting end 8a to stop the movement of the lifting drive mechanism. The upper side of the guide sleeve 6 is used to abut against the detachable sleeve to limit the lower limit position point of the lifting block 2.

[0038] The working principle of this embodiment is as follows: the lower limit position of the lifting block 2 can be limited by a comprehensive use of photoelectric sensing and purely mechanical methods. When the lifting block 2 enters the lower limit position range, the protrusion blocks the light emitted by the transmitting end 8a, and the receiving end 8b cannot receive the signal. The electronic control system will receive a corresponding signal to stop the lifting drive mechanism from moving. At the moment the lifting block 2 stops moving, because the dead weight of the lifting block 2 is generally large (the dead weight of the center slide column 3 and the punch 4 must also be considered), its movement inertia is also relatively large. In order to prevent the most extreme situation from occurring, the guide sleeve 6 can be used as a load-bearing component to abut against the detachable sleeve, thereby limiting the lower limit position of the lifting block 2 by purely mechanical contact. Because the lifting block 2 and the detachable sleeve have both slowed down, the impact of the detachable sleeve on the guide sleeve 6 can be alleviated, and because the guide sleeve 6 is used as the basis for bearing the impact, the impact on the upper limit plate 10 is significantly weakened.

[0039] The above-mentioned detachable sleeve is composed of a pair of limiting shoe 5, the two limiting shoe 5 relatively embraces the center slide column 3 and is fixed to the center slide column 3 by fasteners. The two limiting shoe 5 are arc plates, and the center slide column 3 is a cylinder, so the two limiting shoe 5 can fit the center slide column 3. Both ends of each limiting shoe 5 are integrally connected with a vertical strip plate-shaped docking end plate 5a, so that the protrusion can more continuously block the light emitted by the transmitting end, ensure the reliability of the sensing, and gain a certain amount of time for the control system to receive and send control signals, and try to make the lifting block 2 significantly slow down or stop moving before reaching the lower limit position. The length of the docking end plate 5a is greater than the lower limit position range of 2-4mm (the specific size can be determined according to the on-site conditions, and is not limited to the size range proposed in this embodiment). The docking end plates 5a of the two limiting shoe 5 fit each other and are fixedly connected by fasteners, and the docking end plates 5a of the two limiting shoe 5 constitute a protrusion.

[0040] The above-mentioned opposing optical fiber sensor 8 is equipped with a pair of sensing brackets 9 detachably mounted on the upper surface of the upper limit plate 10. The two sensing brackets 9 are located on both sides of the central sliding column 3, and the transmitting end 8a and the receiving end 8b are detachably connected to the two sensing brackets 9 respectively.

[0041] The above-mentioned central sliding column 3 is a cylinder, and the guide sleeve 6 is an annular sleeve. The guide sleeve 6 has a radially protruding annular flange that is detachably fixed on the upper surface of the upper limit plate 10, so as to better withstand the impact of the detachable sleeve and prevent the detachable sleeve from directly hitting the upper limit plate 10.

[0042] The upper end of the above-mentioned central sliding column 3 is coaxially provided with a coupling column 3b with a stud structure. The central sliding column 3 is detachably spliced with the lifting block 2 upward, and the coupling column 3b is screwed into the screw hole provided on the lower side of the lifting block 2 in a threaded fitting manner, thereby facilitating the replacement of the central sliding column 3.

[0043] The upper end portion of the central sliding column 3 is configured as a hexagonal locking portion 3a coaxial with the engaging column 3b for easy wrench gripping. The cross section of the hexagonal locking portion 3a is a regular hexagon.

[0044] The upper end of the punch 4 is coaxially provided with a docking stud 4a, which is detachably connected to the lower end of the center slide column 3 and screwed into the screw hole provided at the lower end of the center slide column 3 in a threaded manner to facilitate replacement of the punch 4.

[0045] The above are preferred embodiments of the present invention. Those skilled in the art may make various changes or improvements based on the above. Without departing from the overall concept of the present invention, these changes or improvements should fall within the scope of protection required by the present invention.

Claims

1. A die device for a molding device, comprising: Electronic control system; A lifting drive mechanism controlled by an electronic control system; A lifting block (2) driven by a lifting drive mechanism to lift and slide in a lifting guide hole (1) of a frame; A central sliding column (3) fixed to the lower side of the lifting block (2); An upper limit plate (10) and a lower die base (12) located below the upper limit plate (10), wherein the upper limit plate (10) is fixedly connected to the lower die base (12) via a connecting rod (11) to form a whole; The central sliding column (3) is movable in a lifting manner through the upper limit plate (10), and a punch (4) is detachably mounted on its lower end and is located between the upper limit plate (10) and the lower die base (12); Its characteristics are: The portion of the central sliding column (3) located above the upper limit plate (10) is detachably mounted with a detachable sleeve, the upper limit plate (10) has a through hole and a guide sleeve (6) is detachably inserted into the through hole, the central sliding column (3) is inserted into the inner hole of the guide sleeve (6) in a lifting and sliding manner, and the upper side of the guide sleeve (6) protrudes from the upper plate surface of the upper limit plate (10); A counter-beam optical fiber sensor (8) connected to the electric control system is installed on the upper surface of the upper limit plate (10), and the counter-beam optical fiber sensor (8) has a transmitting end (8a) and a receiving end (8b) located on both sides of the central sliding column (3). The light emitted by the transmitting end (8a) is higher than the upper surface of the guide sleeve (6). The side of the detachable sleeve has a protrusion located in the space between the transmitting end (8a) and the receiving end (8b), and the protruding direction of the protrusion is perpendicular to the axis of the central sliding column (3); The movement trajectory of the lifting block (2) has a lower limit position range with the lower limit position point as the lowest position; when the lifting block (2) enters the lower limit position range, the protrusion blocks the light emitted by the emission end (8a) to stop the movement of the lifting drive mechanism; the upper side of the guide sleeve (6) is used to abut against the detachable sleeve to define the lower limit position point of the lifting block (2); The opposing optical fiber sensor (8) is equipped with a pair of sensing brackets (9) detachably mounted on the upper surface of the upper limit plate (10), the two sensing brackets (9) are located on both sides of the central sliding column (3), the transmitting end (8a) and the receiving end (8b) are detachably connected to the two sensing brackets (9), the central sliding column (3) is a cylinder, the guide sleeve (6) is an annular sleeve, and the guide sleeve (6) has a radially protruding annular flange that is detachably fixed on the upper surface of the upper limit plate (10).

2. The die device of a molding device according to claim 1, characterized in that: The detachable sleeve is composed of a pair of limiting holding shoes (5), the two limiting holding shoes (5) relatively hold the central sliding column (3) and are fixed to the central sliding column (3) by fasteners, and both ends of each limiting holding shoe (5) are integrally connected with a vertical strip-shaped butt end plate (5a), the butt end plates (5a) of the two limiting holding shoes (5) are attached to each other and fixedly connected by fasteners, and the butt end plates (5a) of the two limiting holding shoes (5) constitute the protrusion.

3. The die device of a molding device according to claim 1, characterized in that: The upper end of the central sliding column (3) is coaxially provided with a coupling column (3b) with a stud structure. The central sliding column (3) is detachably connected to the lifting block (2) upward, and the coupling column (3b) is screwed into a screw hole provided on the lower side of the lifting block (2) in a threaded manner.

4. The die device of a molding device according to claim 3, characterized in that: The upper end portion of the central sliding column (3) is configured as a hexagonal locking portion (3a) coaxial with the engaging column (3b) for easy wrench clamping, and the cross section of the hexagonal locking portion (3a) is a regular hexagon.

5. The die device of a molding device according to any one of claims 1 to 4, characterized in that: The upper end of the punch (4) is coaxially provided with a docking stud (4a), and the upper end of the punch (4) is detachably spliced with the lower end of the central sliding column (3), and the docking stud (4a) is screwed into the screw hole provided at the lower end of the central sliding column (3) in a threaded manner.

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