Punching die for interior trim parts of locomotive

Abstract

The utility model relates to the field of locomotive interior trim production, and discloses a locomotive interior trim part punching die which comprises a base and a bottom die, the top of the base is fixedly connected with a supporting column, the top of the supporting column is provided with a punching mechanism, the top of the base is fixedly connected with a working table, a positioning mechanism is arranged in the working table, and the bottom die is arranged on the working table. A mounting groove is formed in the top of the workbench, a positioning column is fixedly connected to the top of the mounting groove, and the bottom mold is inserted into the outer surface of the positioning column. According to the utility model, by starting the stepping motor, the two groups of clamping plates are close to each other and are tightly attached to the two sides of the bottom die, so that the two groups of clamping plates are not easy to slide under stress in the punching process, the machining precision is improved, and meanwhile, the two groups of clamping plates are kept in a stable clamping and limiting state when being static through the transmission fit of the worm and the worm wheel; and manual positioning by means of external tools is not needed, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of locomotive interior decoration production, in particular to a locomotive interior decoration part punching die. Background Art

[0002] There are many kinds of locomotive interiors. With the development of social economy, more and more cities are included in the high-speed rail network. There are many kinds of locomotive interiors to meet different diversified needs. Some locomotive interiors need to be punched using punching dies during processing to achieve ventilation, heat dissipation, aesthetics and other functions.

[0003] In the prior art, the punching work on the locomotive interior parts is generally carried out by driving the equipment to separate or close the upper and lower molds to punch the interior parts. In order to enable the equipment to process a variety of different types of interior parts, the lower mold is usually detachably mounted on the workbench to improve the applicability of the equipment. However, during the punching process, when the mechanical equipment drives the upper mold to impact the lower mold, a large impact force will be generated, which may cause the lower mold to be displaced by force, resulting in a decrease in the processing accuracy of the subsequent stamping work of the interior parts. At the same time, different types of molds have different sizes. During installation, the mold is usually fixed by twisting bolts, but it is necessary to use external tools to twist the bolts conveniently and labor-savingly, which increases the operation steps. The use process is cumbersome, resulting in low work efficiency. Therefore, a locomotive interior part punching mold is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a locomotive interior trim punching die, which aims to improve the problem in the prior art that "the impact force generated by the punching work may cause displacement and reduce the processing accuracy".

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a punching mold for locomotive interior parts, comprising a base and a bottom mold, the top of the base is fixedly connected to a support column, the top of the support column is provided with a punching mechanism, the top of the base is fixedly connected to a workbench, a positioning mechanism is provided inside the workbench, the top of the workbench is provided with an installation groove, the top of the installation groove is fixedly connected to a positioning column, the bottom mold is inserted into the outer surface of the positioning column, the bottom of the bottom mold is in contact with the bottom of the inner wall of the installation groove, a collecting mechanism is provided on the right side of the base, and a controller is fixedly connected to the front of the base.

[0006] As a further description of the above technical solution:

[0007] The punching mechanism comprises a support frame, which is fixedly mounted on the top of the support column, the top of the support frame is fixedly connected to an electric cylinder 1, and the bottom of the output shaft of the electric cylinder 1 is fixedly connected to a punching die.

[0008] As a further description of the above technical solution:

[0009] The positioning mechanism comprises a stepper motor, which is fixedly mounted on the rear side of the workbench, and a worm is fixedly connected to the front side of the output shaft of the stepper motor.

[0010] As a further description of the above technical solution:

[0011] The positioning mechanism also includes a worm wheel and a bidirectional screw rod, the worm wheel and the worm rod are meshed, the worm wheel is fixedly mounted on the circumferential surface of the bidirectional screw rod, and the bidirectional screw rod is rotatably mounted on the inner wall of the workbench.

[0012] As a further description of the above technical solution:

[0013] The positioning mechanism also includes a slider and a connecting rod. The slider slides on the circumferential surface of the bidirectional screw rod. One end of the connecting rod is hinged on the surface of the slider, and the other end of the connecting rod is hinged with a clamping plate.

[0014] As a further description of the above technical solution:

[0015] A sliding groove is provided on the inner wall of the installation groove, and the clamping plate is slidably installed on the inner wall of the sliding groove.

[0016] As a further description of the above technical solution:

[0017] The collecting mechanism comprises a material discharge chute and a waste box. The material discharge chute is arranged on the right side surface of the base, and the waste box is fixedly installed on the right side of the base.

[0018] As a further description of the above technical solution:

[0019] The collecting mechanism also includes an electric cylinder 2, which is fixedly installed on the rear side of the waste box. The front end of the output shaft of the electric cylinder 2 is fixedly connected with a pressure plate, and the pressure plate is slidably installed on the inner wall of the waste box.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by starting the stepper motor, the two groups of clamping plates are brought close to each other and closely fit on both sides of the bottom mold, so that they are not easily forced to slide during the punching process, thereby improving the processing accuracy. At the same time, through the transmission cooperation of the worm and worm gear, the two groups of clamping plates maintain a stable clamping limit state when stationary, and there is no need for manual positioning with the help of external tools, thereby improving work efficiency.

[0022] 2. In the utility model, by setting up a collecting mechanism, the waste generated by the punching work slides into the waste box on the right side through the inclined surface of the discharge chute, and then the electric cylinder drives the pressure plate to squeeze the waste, thereby reducing the space volume occupied by the waste, reducing the frequency of staff cleaning the waste in the waste box, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the punching mechanism is completely removed;

[0025] Figure 3 It is a three-dimensional exploded structural schematic diagram of the positioning mechanism in the utility model;

[0026] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the positioning mechanism in the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the worm, worm wheel, bidirectional lead screw, slider, connecting rod and clamping plate in the utility model.

[0028] Legend:

[0029] 1. Base; 2. Support column; 3. Workbench; 4. Mounting slot; 5. Positioning column; 6. Bottom mold; 7. Support frame; 8. Electric cylinder one; 9. Punching mold; 10. Stepper motor; 11. Worm; 12. Worm wheel; 13. Bidirectional screw; 14. Slider; 15. Connecting rod; 16. Clamp; 17. Slide; 18. Feed chute; 19. Waste box; 20. Electric cylinder two; 21. Press plate; 22. Controller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 - Figure 3The utility model provides an embodiment: a punching die for a locomotive interior trim, comprising a base 1 and a bottom die 6, a support column 2 for supporting and stabilizing is fixedly connected to the top of the base 1, which improves the stability of the equipment during operation and improves the processing quality, a punching mechanism is arranged on the top of the support column 2, a workbench 3 for convenient punching is fixedly connected to the top of the base 1, a positioning mechanism is arranged inside the workbench 3, a mounting groove 4 is opened on the top of the workbench 3, a plurality of positioning columns 5 are fixedly connected to the top of the mounting groove 4, the positioning columns 5 are arranged as a vertical cylinder, the bottom die 6 is plugged into the outer surface of the positioning columns 5, the bottom of the bottom die 6 is in contact with the bottom of the inner wall of the mounting groove 4, by setting the positioning columns 5, the bottom die 6 can be positioned when installed in the mounting groove 4, so that the bottom die 6 can be accurately installed directly below the stamping mechanism when installed, thereby improving the accuracy of the installation of the bottom die 6, and thus improving the processing quality of the punching, a collecting mechanism is arranged on the right side of the base 1, and a controller 22 for conveniently controlling the operation of the equipment is fixedly connected to the front of the base 1.

[0032] Reference Figure 1 The punching mechanism includes a support frame 7, which plays a supporting role. The support frame 7 is fixedly installed on the top of the support column 2. The top of the support frame 7 is fixedly connected to an electric cylinder 8, and the bottom of the output shaft of the electric cylinder 8 is fixedly connected to a punching die 9 that cooperates with the bottom die 6, which is convenient for punching the interior decoration of the locomotive.

[0033] Reference Figure 3 - Figure 4 The positioning mechanism includes a stepper motor 10, which is fixedly mounted on the rear side of the workbench 3. The stepper motor 10 can accurately control the rotation angle of its output shaft, which is convenient for adjusting the rotation speed and frequency of the stepper motor 10. It can be adjusted according to different production requirements and has good adaptability. A worm 11 is fixedly connected to the front side of the output shaft of the stepper motor 10. The positioning mechanism also includes a worm wheel 12 and a bidirectional lead screw 13. The circumferential surface of the bidirectional lead screw 13 is provided with two sections of thread grooves with opposite rotation directions. The worm wheel 12 and the worm 11 are meshed. Since the worm wheel 12 and the worm 11 have a self-locking characteristic when the transmission is coordinated, when the bottom mold 6 is bidirectionally limited, the positioning and clamping effect is relatively stable after the stepper motor 10 stops rotating. The worm wheel 12 is fixedly mounted on the circumferential surface of the bidirectional lead screw 13, and the bidirectional lead screw 13 is rotatably mounted on the inner wall of the workbench 3.

[0034] Reference Figure 3 - Figure 5The positioning mechanism also includes a slider 14 and a connecting rod 15. The slider 14 slides on the circumferential surface of the bidirectional screw rod 13. The number of sliders 14 is set to two groups. The two groups of sliders 14 slide on the thread grooves of different rotation directions respectively. When the bidirectional screw rod 13 rotates, the two groups of sliders 14 move away from or approach each other. One end of the connecting rod 15 is hinged on the surface of the slider 14. The other end of the connecting rod 15 is hinged with a clamping plate 16. The number of the clamping plates 16 is set to two groups. A rubber clamping block is provided on one side where the two groups of clamping plates 16 are close to each other, which is used to increase friction and reduce the possibility of slipping. Through the transmission action of the connecting rod 15, when the two groups of sliders 14 move away from or approach each other, the connecting rod 15 will pull or squeeze the clamping plate 16, so that the clamping plates 16 move away from or approach each other. A sliding groove 17 is opened on the inner wall of the mounting groove 4. The clamping plate 16 is slidably installed on the inner wall of the sliding groove 17. The displacement direction of the clamping plate 16 is forward and backward displacement. The sliding groove 17 improves the movement stability of the clamping plate 16.

[0035] Reference Figure 1 - Figure 2 The collecting mechanism includes a feed chute 18 and a waste box 19. The feed chute 18 is opened on the right side surface of the base 1. The feed chute 18 is inclined to guide the sliding direction of the stamping waste. The waste generated by the punching work slides into the waste box 19 on the right side through the inclined surface of the feed chute 18 to avoid the waste from accumulating on the workbench 3 and affecting the subsequent punching work. The waste box 19 is fixedly installed on the right side of the base 1. The waste box 19 is used to collect the waste generated after punching, which is convenient for centralized processing of the waste and improves work efficiency. The collecting mechanism also includes an electric cylinder 20. The electric cylinder 20 is fixedly installed on the rear side of the waste box 19. The front end of the output shaft of the electric cylinder 20 is fixedly connected with a pressing plate 21 for squeezing the waste. The pressing plate 21 is slidably installed on the inner wall of the waste box 19, and the sliding direction of the pressing plate 21 is forward and backward sliding.

[0036] Working principle: When in use, first install the bottom mold 6, align the bottom mold 6 with the positioning column 5 and press the bottom mold 6 downward, so that the positioning column 5 is inserted into the inner wall of the bottom mold 6 to complete the preliminary installation, and then start the power supply of the stepper motor 10, the stepper motor 10 works to drive the worm 11 to rotate, the rotation of the worm 11 drives the worm wheel 12 to rotate, the rotation of the worm wheel 12 drives the bidirectional screw 13 to rotate, the rotation of the bidirectional screw 13 makes the two groups of sliders 14 approach each other, and then through the transmission of the connecting rod 15, the two groups of splints 16 approach each other until the side where the two groups of splints 16 are close to each other contacts with the front and rear sides of the bottom mold 6, and a pre-tightening force is applied to the bottom mold 6, so that the bottom mold 6 is firmly fixed on the top of the workbench 3, so that the bottom mold 6 is more stable during punching, and the bottom mold 6 is prevented from being displaced due to the impact force generated by the punching work, thereby affecting the finished product quality of the locomotive interior parts.

[0037] The punching waste generated during the production process of the front interior parts will slide into the waste box 19 through the inclined discharge chute 18 to avoid the accumulation of waste and ensure the continuity of production. Then the power supply of the electric cylinder 20 is started, and the electric cylinder 20 drives the pressure plate 21 to move inside the waste box 19 and squeezes out the air inside the waste collected in the waste box 19, thereby reducing the space volume occupied by the waste. By reducing the space volume occupied by the waste, more waste can be collected inside the waste box 19, thereby reducing the frequency of waste cleaning inside the waste box 19 by the staff and improving work efficiency.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching die for a locomotive interior trim, comprising a base (1) and a bottom die (6), characterized in that: The top of the base (1) is fixedly connected to a support column (2), the top of the support column (2) is provided with a punching mechanism, the top of the base (1) is fixedly connected to a workbench (3), the interior of the workbench (3) is provided with a positioning mechanism, the top of the workbench (3) is provided with a mounting groove (4), the top of the mounting groove (4) is fixedly connected to a positioning column (5), the bottom mold (6) is plugged into the outer surface of the positioning column (5), the bottom of the bottom mold (6) is in contact with the bottom of the inner wall of the mounting groove (4), a collecting mechanism is provided on the right side of the base (1), and the front of the base (1) is fixedly connected to a controller (22).

2. A locomotive interior trim punching die according to claim 1, characterized in that: The punching mechanism comprises a support frame (7), wherein the support frame (7) is fixedly mounted on the top of the support column (2), the top of the support frame (7) is fixedly connected to an electric cylinder (8), and the bottom of the output shaft of the electric cylinder (8) is fixedly connected to a punching die (9).

3. The punching die for locomotive interior parts according to claim 1, characterized in that: The positioning mechanism comprises a stepping motor (10), the stepping motor (10) is fixedly mounted on the rear side of the workbench (3), and a worm (11) is fixedly connected to the front side of the output shaft of the stepping motor (10).

4. A locomotive interior trim punching die according to claim 3, characterized in that: The positioning mechanism also includes a worm wheel (12) and a bidirectional screw rod (13), wherein the worm wheel (12) is meshed with the worm rod (11), the worm wheel (12) is fixedly mounted on the circumferential surface of the bidirectional screw rod (13), and the bidirectional screw rod (13) is rotatably mounted on the inner wall of the workbench (3).

5. A locomotive interior trim punching die according to claim 4, characterized in that: The positioning mechanism also includes a slider (14) and a connecting rod (15), wherein the slider (14) slides on the circumferential surface of the bidirectional screw rod (13), one end of the connecting rod (15) is hinged on the surface of the slider (14), and the other end of the connecting rod (15) is hinged with a clamping plate (16).

6. A locomotive interior trim punching die according to claim 5, characterized in that: A sliding groove (17) is provided on the inner wall of the installation groove (4), and the clamping plate (16) is slidably installed on the inner wall of the sliding groove (17).

7. The punching die for locomotive interior parts according to claim 1, characterized in that: The collecting mechanism comprises a material discharge chute (18) and a waste box (19); the material discharge chute (18) is provided on the right side surface of the base (1); and the waste box (19) is fixedly mounted on the right side of the base (1).

8. The punching die for locomotive interior parts according to claim 7, characterized in that: The collecting mechanism further comprises an electric cylinder 2 (20), the electric cylinder 2 (20) being fixedly mounted on the rear side of the waste bin (19), the front end of the output shaft of the electric cylinder 2 (20) being fixedly connected with a pressing plate (21), the pressing plate (21) being slidably mounted on the inner wall of the waste bin (19).

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