Resistance box mesh cover punching machine

Abstract

The utility model provides a resistance box mesh cover punching machine which comprises a punching machine table top, a die, a clamping mechanism, an X-direction moving mechanism and a Y-direction moving mechanism, the die comprises an upper die and a lower die, and the Y-direction moving mechanism comprises a sliding table body and a main driving mechanism. The X-direction moving mechanism comprises a left-right sliding table air cylinder and a left-right sliding table. The left-right sliding table air cylinder drives the left-right sliding table to reciprocate in the X direction relative to the sliding table body. A plate can be effectively clamped to move in the Y direction through the clamping mechanism, meanwhile, the left sliding table and the right sliding table are matched to drive the plate to transversely move in a reciprocating mode in the X direction, the plate is driven to be staggered through transverse movement, secondary punching can be carried out on the side of a row of punched holes after primary punching, the density of the punched holes in the same row is increased, and the punching efficiency is improved. And the plate punching operation with the hole distance smaller than the distance between the centers of the two adjacent punching mechanisms can be completed, so that the machined plate mesh enclosure can be effectively suitable for manufacturing a resistance box.

Description

Technical Field

[0001] The utility model relates to a template punching technology, in particular to the technical field of punching machines, in particular to a resistor box mesh cover punching machine. Background Art

[0002] A resistor box is a box-type resistor, in which a number of fixed resistors with different resistance values ​​are usually connected in a certain way. When the resistor box is working, the resistors will generate heat, and a mesh cover is usually designed on the box and mesh holes are opened to dissipate heat. The box located at the heat dissipation position usually uses a punching plate as the mesh cover material.

[0003] In the process of processing the mesh cover, it is necessary to use a punching machine to punch holes in the plate. At present, the existing punching machines usually use molds and clamping mechanisms for cooperation. After the clamping mechanism clamps the plate, it drives the plate to step forward along the guide direction of the lower mold. During the stepping action, the punching machine drives the upper mold to press down to punch holes in the plate. If the plate moving direction (plate length direction) is set to the Y direction, and the perpendicular direction of the plate moving direction (plate width direction) is set to the X direction, the punching machine can perform punching operations in the X direction in rows as needed.

[0004] However, with this structural setting, the spacing between holes is limited by the spacing between the punching mechanisms of the upper die. The minimum spacing between the centers of two adjacent holes is the spacing between the centers of two adjacent punching mechanisms of the upper die. When the processing on the plate requires the punching arrangement to be dense and the hole spacing is too small, the existing plate punching machine cannot meet the processing requirements. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the shortcomings of the prior art, the utility model provides a resistor box mesh cover punching machine, further improves the design of the mold and the clamping mechanism, so that it can process plates with hole spacing smaller than the spacing between the centers of two adjacent punching mechanisms, and is effectively suitable for processing resistor box mesh covers.

[0006] The utility model solves the technical problem by adopting the following technical scheme: a resistor box mesh cover punching machine is used for punching a plate, comprising a punching machine table, a die, a clamping mechanism, an X-direction moving mechanism and a Y-direction moving mechanism, wherein the die comprises an upper die and a lower die, the lower die is fixed on the punching machine table, the upper die is located above the lower die and a plurality of punching mechanisms are arranged on the lower end surface of the upper die along the X-direction, the Y-direction moving mechanism comprises a slide body and a main driving mechanism, the main driving mechanism drives the slide body to slide along the Y-direction; the X-direction moving mechanism is arranged on the slide body, comprising left and right slide cylinders and left and right slides, the left and right slide cylinders are arranged on the slide body, the left and right slide cylinders drive the left and right slides to reciprocate relative to the slide body in the X-direction; the clamping mechanism is arranged on the left and right slides and clamps the plate to move synchronously with the movement of the left and right slides.

[0007] In the above scheme, on the basis of utilizing the clamping mechanism to effectively clamp the plate and utilizing the Y-direction moving mechanism to drive the plate to move forward, a design is made on the slide table of the Y-direction moving mechanism to drive the plate to slide left and right in the X-direction. After positioning in the Y-direction, the X-direction moving mechanism is utilized to slide after punching once, and a second offset punching is performed in the same column. Compared with a punching machine having only a Y-direction moving mechanism, holes with a smaller hole pitch can be processed in the column, so that the spacing between the centers of the processed holes in the same column after processing can be lower than the spacing between the centers of two adjacent punching mechanisms.

[0008] Furthermore, a guide rail is fixed on the punch table along the Y direction, the slide body is slidably matched with the guide rail, the main driving mechanism includes a screw and a screw motor, the screw is matched with a screw nut, and the bottom of the slide body is fixed with the screw nut. The screw motor drives the screw to rotate, and since the screw nut is fixed to the bottom of the slide body, when the screw rotates, the screw nut drives the slide body to move relative to the screw axis, that is, the Y direction.

[0009] Furthermore, the number of the clamping mechanisms is at least two groups, each group of clamping mechanisms includes a fixed clamp, a movable clamp and a clamp cylinder, the clamp cylinder and the fixed clamp are fixed on the left and right slides, the movable clamp is hinged to the fixed clamp, and the output end of the clamp cylinder has a top cap, and the top cap drives the movable clamp to open and close relative to the fixed clamp under the action of the output end of the clamp cylinder.

[0010] Furthermore, the movable clamp is hinged above the fixed clamp, and a through hole is formed on the fixed clamp. The left and right cylinders also have through holes at positions corresponding to the through holes. The fixed cylinders corresponding to the fixed clamps are fixed below the left and right slides at the positions of the through holes. The top cap moves up and down relative to the through holes of the corresponding fixed clamps and the left and right cylinders, and when moving upward, it pushes the movable clamp to rotate along the hinge axis relative to the fixed clamp. When the output end of the clamp cylinder pushes up, the top cap moves up and contacts the lower end surface of the movable clamp, and then the output end of the clamp cylinder continues to push up, driving the movable clamp to continue rotating around the hinge axis until the movable clamp cooperates with the fixed clamp to effectively clamp the plate. When the output end of the clamp cylinder moves down, the top cap falls down, and the movable clamp naturally falls down under the action of gravity after losing the upward support force, and the movable clamp and the fixed clamp are loosened and no longer clamp the plate.

[0011] Furthermore, the fixed clamp has a clamping backer on the upper end surface of the plate that is opened and closed with the movable clamp, the upper end surface of the fixed clamp corresponding to the clamping position is parallel to the upper end surface of the lower mold, and the clamping backer is protrudingly arranged on the upper end surface, and the front end surface of the clamping backer in the Y direction abuts against the end surface of the plate. The design of the clamping backer facilitates the abutment limit for the plate to be pushed forward in the Y direction, and facilitates the positioning operation of the plate processing.

[0012] Preferably, the resistor box mesh punching machine also includes a feeding mechanism, which includes a material rack bottom plate, a material rack table, a backing cylinder and a backing body; the material rack table is supported on the material rack bottom plate by supporting feet, and a number of bull's eye universal wheels are evenly distributed on the material rack table; the backing cylinder is arranged on the side of the material rack table in the X direction, and the backing body is arranged at the output end of the backing cylinder, and the backing body has a limiting end face parallel to the moving direction of the slide along the Y direction. The feeding mechanism can facilitate the processing personnel to push the feeding in the X and Y directions through the design of the bull's eye universal wheels. The setting of the backing body can further facilitate the limiting of the plate pushed into the processing in the X direction.

[0013] Furthermore, a notch groove is formed on one side of the material rack table along the X direction, and the backrest cylinder is adjustably arranged on the material rack bottom plate below the notch groove in the X direction, and the backrest body is fixed to the output end of the backrest cylinder through the backrest cylinder top plate and the backrest pad, and the backrest body is located above the material rack table in the height direction.

[0014] Furthermore, the actual position of the backing body can be fine-tuned as needed, so as to improve the processing accuracy of the punching machine in the X direction. A cylinder support bottom plate is fixed to the bottom of the backing cylinder, and a plurality of oblong holes are opened on the cylinder support bottom plate along the X direction. The cylinder support bottom plate is adjustably arranged with the material rack bottom plate through the oblong holes.

[0015] The beneficial effect of the utility model is that the resistor box mesh cover punching machine provided by the utility model has a reasonable structural design, and can effectively clamp the plate to move along the Y direction through the clamping mechanism, and can drive the plate to move back and forth horizontally in the X direction in conjunction with the left and right slides. The plate is dislocated by the horizontal movement, and a secondary punching can be performed on the side of the punched hole column after the first punching, so that the punching density in the same column is denser, and the plate punching operation with a hole spacing smaller than the spacing between the centers of two adjacent punching mechanisms can be completed, so that the processed plate mesh cover can be effectively suitable for resistor box production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the optimal embodiment of the utility model.

[0018] Figure 2 It is the front view of the optimal embodiment of the utility model.

[0019] Figure 3 It is a side view of the optimal embodiment of the utility model.

[0020] Figure 4 yes Figure 1A magnified schematic diagram of center A.

[0021] In the figure, 1, the material rack table, 2, the cylinder bracket bottom plate, 3, the backing cylinder, 4, the backing cylinder top plate, 5, the material rack bottom plate, 6, the supporting foot, 7, the material rack table, 8, the material rack, 9, the bull's eye universal wheel, 10, the backing body, 11, the backing pad, 12, the upper die, 13, the movable clamp, 14, the top cap, 15, the clamp cylinder, 16, the slide body, 17, the screw rod, 18, the guide rail, 19, the screw rod motor, 20, the large bottom plate, 21, the punching table, 22, the left and right slide cylinders, 23, the left and right slides, 24, the slider, 25, the fixed clamp, 26, the lower die, 27, the punching mechanism, 28, and the clamping backing. DETAILED DESCRIPTION

[0022] The utility model is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model, and the directions and references (for example, up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0023] like Figures 1 to 3 The resistor box mesh cover punching machine shown is the best embodiment of the utility model.

[0024] The resistor box mesh cover punching machine comprises a punching machine table 21, a die, a clamping mechanism, a feeding mechanism, an X-direction moving mechanism and a Y-direction moving mechanism.

[0025] Along the Y direction, the feeding mechanism, the mold, the clamping mechanism and the Y-direction feeding mechanism are distributed in sequence, and the X-direction feeding mechanism is arranged above the Y-direction feeding mechanism.

[0026] Specifically, the feeding mechanism includes a rack bottom plate 5, a rack table 7, a backing cylinder 3 and a backing body 10. The rack bottom plate 5 is provided with a supporting foot 6, and a material rack 8 is provided on the supporting foot 6. The rack table 7 is fixed on the material rack 8. A plurality of bull's eye universal wheels 9 are evenly spaced on the rack table 7. The rack table 1 is fixed to the lower end of the rack bottom plate 5. The punch table 21 is located in the forward direction of the rack table 1 in the Y direction.

[0027] The backing cylinder 3 is arranged on the side of the material rack table 7 in the X direction. A notch groove is opened on one side of the material rack table 7 along the X direction. The backing cylinder 3 is adjustably arranged on the material rack bottom plate 5 below the notch groove in the X direction. The backing body 10 is fixed on the output end of the backing cylinder 3 through the backing cylinder top plate 4 and the backing pad 11, and the backing body 10 is located above the material rack table 7 in the height direction. The backing body 10 has a limiting end face parallel to the moving direction of the slide along the Y direction. The feeding mechanism can facilitate the processing personnel to push the feeding in the X and Y directions through the design of the bull's eye universal wheel 9. The setting of the backing body 10 can further facilitate the limiting of the plate pushed into the processing in the X direction.

[0028] In the design, production and assembly of the punching machine, in order to improve the processing accuracy of the punching machine in the X direction, the actual position of the backing body 10 can be fine-tuned as needed. To this end, a cylinder support base plate 2 is fixed to the bottom of the backing cylinder 3, and at least two oblong holes are opened on the cylinder support base plate 2 along the X direction. The opening direction of the oblong holes can be opened on the top plate of the cylinder support as required. The cylinder support base plate 2 is adjustably connected to the material rack base plate 5 through the oblong holes through bolts, nuts and gaskets. During assembly, a suitable position in the oblong holes is selected for positioning and fixing according to the use requirements.

[0029] The die includes an upper die 12 and a lower die 26, the lower die 26 is fixed on the punch table 21, the upper die 12 is located above the lower die 26, and a plurality of punching mechanisms 27 are arranged along the X direction on the lower end surface of the upper die 12. The punching mechanism 27 on the upper die 12 can be pressed down by the punching machine, and cooperates with the processing end surface of the lower die 26 to punch the plate.

[0030] The Y-direction moving mechanism includes a slide body 16 and a main driving mechanism, and the main driving mechanism drives the slide body 16 to slide along the Y-direction. Specifically, a large base plate 20 is fixed on the punch table 21, and two symmetrically arranged guide rails 18 are fixed on the large base plate 20 along the Y-direction. A slider 24 is slidably connected to each guide rail 18, and the slide body 16 is respectively fixed to the top of the slider 24 on both sides. The main driving mechanism includes a screw rod 17 and a screw rod motor 19. The screw rod 17 is equipped with a screw rod 17 nut, and the bottom of the slide body 16 is fixed to the screw rod 17 nut. The screw rod motor 19 drives the screw rod 17 to rotate. Since the screw rod 17 nut is fixed to the bottom of the slide body 16, when the screw rod 17 rotates, the screw rod 17 nut drives the slide body 16 to move relative to the axial direction of the screw rod 17, that is, in the Y-direction.

[0031] The X-direction moving mechanism is arranged on the slide body 16, including left and right slide cylinders 22 and left and right slides 23. The left and right slide cylinders 22 are arranged on the slide body 16, and the left and right slide cylinders 22 drive the left and right slides 23 to reciprocate in the X direction relative to the slide body 16.

[0032] The clamping mechanism is arranged on the left and right slides 23, and is driven by the Y-direction moving mechanism to move in the Y direction, and reciprocates in the X direction with the movement of the left and right slides 23. The plate clamped by the clamping mechanism also completes the required displacement in the Y direction and the X direction.

[0033] Specifically, there are two groups of clamping mechanisms. Each group of clamping mechanisms includes a fixed clamp 25, a movable clamp 13 and a clamp cylinder 15. The clamp cylinder 15 and the fixed clamp 25 are fixed on the left and right slides 23. The movable clamp 13 is hinged above the fixed clamp 25 through a hinge axis. The output end of the clamp cylinder 15 has a top cap 14. A through hole is opened on the fixed clamp 25. The left and right cylinders also have through holes at the positions corresponding to the through holes. The fixed cylinder corresponding to the fixed clamp 25 is fixed below the left and right slides 23 at the positions of the through holes. The top cap 14 moves up and down relative to the through holes of the corresponding fixed clamp 25 and the left and right cylinders, and when moving upward, the movable clamp 13 is pushed up to rotate relative to the fixed clamp 25 along the hinge axis.

[0034] When the output end of the clamp cylinder 15 pushes up, the top cap 14 moves up and contacts the lower end surface of the movable clamp 13, and then the output end of the clamp cylinder 15 continues to push up, driving the movable clamp 13 to continue to rotate around the hinge axis until the movable clamp 13 cooperates with the fixed clamp 25 to effectively clamp the plate. When the output end of the clamp cylinder 15 moves down, the top cap 14 falls down, and the movable clamp 13 loses the upward support force and naturally falls down under the action of gravity. The movable clamp 13 and the fixed clamp 25 are loosened and no longer clamp the plate.

[0035] The fixed clamp 25 is on the upper end surface that opens and closes with the movable clamp 13 to clamp the plate. In order to facilitate the positioning of the plate feeding in the Y direction, a clamping backer 28 can be designed to protrude on the upper end surface of the fixed clamp 25 at the clamping position. The upper end surface of the fixed clamp 25 at the clamping position corresponding to the clamping position is designed to be parallel to the upper end surface of the lower mold 26, and the clamping backer 28 is protrudingly set on the upper end surface.

[0036] In this way, the plate fed by the feeding mechanism is limited by the backrest body 10 in the X direction and by the clamping backrest 28 in the Y direction. With the backrest positioning in these two directions, the plate can be effectively pre-positioned during the clamping process, which is convenient for positioning and punching according to the processing requirements.

[0037] Operation process:

[0038] According to the processing requirements, the backing cylinder 3 is adjusted to a suitable position and positioned and fixed. The plate to be processed is placed on the material rack table 7, and the plate is pushed along the Y direction to abut against the clamping backing 28 with the help of the bull's eye universal wheel 9, and then the plate is pushed along the X direction to abut against the backing body 10. At this time, the clamp cylinder 15 is controlled to move, and the top cap 14 moves up until the movable clamp 13 and the fixed clamp 25 effectively cooperate to clamp the plate. The punching mechanism 27 of the upper mold 12 is pressed down to process the first part of the punching of the column position. After the processing is completed, the punching mechanism 27 is lifted up, and the left and right slide cylinders 22 are moved to drive the left and right slides 23 to slide along the X direction. After sliding into place, the punching mechanism 27 is pressed down for the second time, and the punching of the second part is processed relative to the punching of the first part. In this way, according to the processing requirements, the same mold can be used in the processing of the same column of vacancies, and the left and right slides 23 are used for horizontal displacement and dislocation, and the punching is encrypted according to the vacancy spacing requirements. The spacing between the centers of adjacent processed holes in the same column is not limited by the spacing between the punching mechanisms 27. By moving the plate horizontally to shift the plate, a second punching can be performed on the sides of the holes in the column after the first punching, so that the density of punching holes in the same column is increased. The plate punching operation with a hole spacing smaller than the spacing between the centers of two adjacent punching mechanisms 27 can be completed, which is more conducive to processing a plate mesh cover with denser holes, so that the processed plate mesh cover can be effectively used in the production of resistor boxes.

[0039] During this processing process, after the clamping device clamps the plate once, it must always maintain the clamping state until the entire plate is processed. The output end of the clamp cylinder 15 retracts, and the corresponding movable clamp 13 falls accordingly under the action of gravity and drives the other side to lift up along the hinge axis, loosening the plate to facilitate the removal of the processed plate.

[0040] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A resistor box mesh cover punching machine, used for punching a plate, comprising a punching machine table (21), a die and a clamping mechanism, wherein the die comprises an upper die (12) and a lower die (26), the lower die (26) being fixed on the punching machine table (21), the upper die (12) being located above the lower die (26) and a plurality of punching mechanisms (27) being arranged along the X direction on the lower end surface of the upper die (12), Features: It also includes an X-direction moving mechanism and a Y-direction moving mechanism; The Y-direction moving mechanism comprises a slide body (16) and a main driving mechanism, and the main driving mechanism drives the slide body (16) to slide along the Y direction; The X-direction moving mechanism is arranged on the slide body (16), and comprises left and right slide cylinders (22) and left and right slides (23); the left and right slide cylinders (22) are arranged on the slide body (16); the left and right slide cylinders (22) drive the left and right slides (23) to reciprocate in the X direction relative to the slide body (16); The clamping mechanism is arranged on the left and right slides (23) and moves synchronously with the movement of the left and right slides (23) to clamp the plate.

2. The resistor box mesh punching machine according to claim 1, Features: A guide rail (18) is fixed on the punch table (21) along the Y direction, the slide body (16) is slidably matched with the guide rail (18), the main driving mechanism includes a screw rod (17) and a screw rod motor (19), the screw rod (17) is matched with a screw rod (17) nut, and the bottom of the slide body (16) is fixed to the screw rod (17) nut.

3. The resistor box mesh punching machine according to claim 1, Features: The clamping mechanism comprises at least two groups, each group of the clamping mechanism comprises a fixed clamp (25), a movable clamp (13) and a clamp cylinder (15), the clamp cylinder (15) and the fixed clamp (25) are both fixed on the left and right slides (23), the movable clamp (13) is hinged to the fixed clamp (25), the output end of the clamp cylinder (15) is provided with a top cap (14), and the top cap (14) drives the movable clamp (13) to open and close relative to the fixed clamp (25) under the action of the output end of the clamp cylinder (15).

4. The resistor box mesh punching machine as claimed in claim 3, Features: The movable clamp (13) is hinged above the fixed clamp (25), and a through hole is formed on the fixed clamp (25). The left and right cylinders also have through holes at positions corresponding to the through holes. The fixed cylinders corresponding to the fixed clamp (25) are fixed below the left and right slides (23) at the positions of the through holes. The top cap (14) moves up and down relative to the through holes of the corresponding fixed clamp (25) and the left and right cylinders, and when moving upward, the movable clamp (13) is pushed up to rotate relative to the fixed clamp (25) along the hinge axis.

5. The resistor box mesh cover punching machine as claimed in claim 4, Features: The fixed clamp (25) has a clamping backing (28) on the upper end surface for clamping the plate with the movable clamp (13). The upper end surface of the fixed clamp (25) at the clamping position corresponding to the clamping position is parallel to the upper end surface of the lower mold (26). The clamping backing (28) is protrudingly arranged on the upper end surface. The front end surface of the clamping backing (28) in the Y direction abuts against the end surface of the plate.

6. The resistor box mesh punching machine according to claim 1, Features: It comprises a feeding mechanism, wherein the feeding mechanism comprises a material rack bottom plate (5), a material rack table top (7), a backing cylinder (3) and a backing body (10); The material rack table (7) is supported on the material rack bottom plate (5) by supporting legs (6), and a plurality of bull's eye universal wheels (9) are evenly spaced on the material rack table (7); The backing cylinder (3) is arranged on the side of the material rack table (7) in the X direction, and the backing body (10) is arranged at the output end of the backing cylinder (3). The backing body (10) has a limiting end surface parallel to the moving direction of the slide along the Y direction.

7. The resistor box mesh punching machine as claimed in claim 6, Features: The material rack table (7) is provided with a notch groove on one side along the X direction, the backing cylinder (3) is adjustably arranged in the X direction on the material rack bottom plate (5) below the notch groove, and the backing body (10) is fixed to the output end of the backing cylinder (3) through the backing cylinder top plate (4) and the backing pad (11), and the backing body (10) is located above the material rack table (7) in the height direction.

8. The resistor box mesh punching machine as claimed in claim 7, Features: A cylinder support base plate (2) is fixed to the bottom of the backing cylinder (3), a plurality of oblong holes are opened on the cylinder support base plate (2) along the X direction, and the cylinder support base plate (2) is adjustably arranged with the material rack base plate (5) through the oblong holes.

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