Feeding mechanism for punching machine

Abstract

The utility model discloses a feeding mechanism for a punching machine, which ensures stable and reliable feeding of metal sheets. The punching machine comprises an upper punching die head and a lower base; a rotating motor; a feeding plate; the guide rail is fixedly installed on the conveying cross beam and arranged in the feeding direction of the feeding plate, and a first sliding block is arranged on the guide rail; the cam assembly comprises a mounting box body, a cam and a second sliding block, a rack is arranged on the upper surface of the second sliding block, two sets of guide blocks protruding downwards are fixedly arranged on the lower surface of the second sliding block, a rotating shaft is arranged in the mounting box body, the rotating shaft is sleeved with the cam, and two rows of inwards-concave guide grooves distributed in parallel are formed in the outer surface of the cam; the concave guide groove comprises a convex point, a concave point and a transition arc groove; the bottoms of the two groups of guide blocks are respectively embedded in the concave guide groove; the connecting rod assembly comprises a first connecting rod and a second connecting rod; and a central shaft of the transmission gear is fixedly arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of punching and feeding, in particular to a feeding mechanism for a punching machine. Background Art

[0002] When making the lid of the packaging barrel, the metal sheet needs to be cut into a set shape in advance and then fed into the punch press for stamping. The existing feeding mechanism pushes the material table into the inner cavity of the punch press through a linear cylinder. In actual use, the linear cylinder is prone to deviations in the linear travel position when feeding, which in turn causes appearance defects in the stamped product. For this reason, it is urgently necessary to develop a feeding mechanism that can ensure stable and reliable feeding of metal sheets into place. Summary of the invention

[0003] In view of the above problems, the utility model provides a feeding mechanism for a punching machine, which converts rotation into linear reciprocating power through motor transmission, thereby ensuring stable and reliable feeding of metal sheets.

[0004] A feeding mechanism for a punch press, characterized in that it comprises:

[0005] A punch press, comprising an upper punching die head and a lower base;

[0006] Rotate the motor;

[0007] feed plate;

[0008] A guide rail, which is fixed to the conveying beam and arranged along the feeding direction of the feeding plate, and a first sliding block is arranged on the guide rail;

[0009] A cam assembly, comprising a mounting box, a cam, and a second slider, wherein a rack is disposed on the upper surface of the second slider, and two groups of downwardly convex guide blocks are fixedly disposed on the lower surface of the second slider, a rotating shaft is disposed inside the mounting box, a cam is sleeved on the rotating shaft, and two rows of concave guide grooves arranged in parallel are disposed on the outer surface of the cam, wherein the concave guide grooves include convex points, concave points, and transition arc grooves, and the bottoms of the two groups of guide blocks are respectively embedded in the concave guide grooves;

[0010] A connecting rod assembly, comprising a first connecting rod and a second connecting rod;

[0011] and a transmission gear, wherein the central axis of the transmission gear is fixedly arranged;

[0012] The feeding plate is arranged directly above the guiding track. The bottom of the feeding plate is fixedly connected to the upper surface of the first slider. The feeding plate reciprocates linearly along the guiding track through the first slider. The driving gear is meshed with the rack. The driving gear is fixedly connected to the lower end of the first connecting rod. The upper end of the first connecting rod is pivotally connected to the upper end of the second connecting rod. The upper end of the second connecting rod is pivotally connected to the first slider. The rotating shaft is connected to the output end of the rotating motor.

[0013] Its further features are as follows:

[0014] The guiding block includes a hemispherical head at the bottom and a guiding part in the middle. A limiting guiding groove is provided at the top of the mounting box corresponding to the guiding part in the middle. The hemispherical head at the bottom is embedded in the concave guiding groove. The concave guiding groove is machined in imitation of the cross-section of the hemispherical head at the bottom, ensuring that it is not easily worn and guaranteeing a stable and reliable linear running track.

[0015] It further includes a supporting mounting frame. The supporting mounting frame includes a horizontal plate, a vertical plate, and an inclined rib plate. The vertical plate is fixedly installed on one side of the lower base. The vertical plate is fixedly connected to the horizontal plate through the inclined rib plate.

[0016] The mounting box is fixedly arranged on the horizontal plate.

[0017] The rotating motor is fixedly installed on the horizontal plate. At this time, the part of the rotating shaft protruding from the mounting box is connected to the output end of the rotating motor.

[0018] The rotating motor is built into the mounting box.

[0019] It further includes a supporting roller. A vertical supporting frame is arranged on the upper surface of the lower base near the guiding track. The supporting roller is installed at the top of the vertical supporting frame. The front lower surface of the feeding plate is supported by the supporting roller, ensuring that the feeding plate moves reciprocally in a straight line in a stable and reliable horizontal state.

[0020] The width area of the supporting roller covers the width of the feeding plate, ensuring stable and reliable supporting and guiding for the feeding plate.

[0021] After adopting the above technical solution, the rotating motor drives the cam assembly to rotate, and then drives the two groups of guiding blocks located below the rack to reciprocate along the directions of the convex point, the transition arc groove, and the concave point. Then it drives the driving gear to rotate reciprocally according to the meshing stroke, and further drives the connecting rod assembly to drive the first slider to reciprocate linearly along the guiding track. It converts the rotation into linear reciprocating driving force through the rotating motor, thus ensuring stable and reliable feeding of the metal thin plate. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the present utility model;

[0023] Figure 2 It is a cross-sectional view of the connection between the cam assembly, the connecting rod assembly and the transmission gear of the utility model;

[0024] Figure 3 for Figure 1 A local enlarged schematic diagram of point A;

[0025] The names corresponding to the serial numbers in the figure are as follows:

[0026] Punch press 10, upper stamping die 11, lower base 12, rotating motor 20, feed plate 30, guide rail 40, first slider 41, cam assembly 50, mounting box 51, limiting guide groove 511, cam 52, second slider 53, rack 54, guide block 55, bottom hemispherical head 551, middle guide part 552, rotating shaft 56, concave guide groove 57, convex point 571, concave point 572, transition arc groove 573, connecting rod assembly 60, first connecting rod 61, second connecting rod 62, transmission gear 70, center shaft 71, support mounting frame 80, horizontal plate 81, vertical plate 82, inclined rib plate 83, supporting roller 90, vertical supporting frame 100. DETAILED DESCRIPTION

[0027] A feeding mechanism for a punch press, see Figures 1 - 3 , which includes a punch press 10, a rotating motor 20, a feed plate 30, a guide track 40, a cam assembly 50, a connecting rod assembly 60, and a transmission gear 70;

[0028] The punch press 10 includes an upper punch die 11 and a lower base 12;

[0029] The guide rail 40 is fixedly mounted on the conveying beam (an existing mature structure, not shown in the figure), and is arranged along the feeding direction of the feeding plate 30. A first sliding block 41 is provided on the guide rail 40;

[0030] The cam assembly 50 includes a mounting box 51, a cam 52, and a second slider 53. A rack 54 is disposed on the upper surface of the second slider 53. Two groups of downwardly convex guide blocks 55 are fixedly disposed on the lower surface of the second slider 53. A rotating shaft 56 is disposed inside the mounting box 51. The cam 52 is sleeved on the rotating shaft 56. Two rows of concave guide grooves 57 arranged in parallel are disposed on the outer surface of the cam 52. The concave guide grooves 57 include convex points 571, concave points 572, and transition arc grooves 573. The bottoms of the two groups of guide blocks 55 are respectively embedded in the concave guide grooves 57.

[0031] The connecting rod assembly 60 includes a first connecting rod 61 and a second connecting rod 62; the central axis 71 of the transmission gear 70 is fixedly arranged;

[0032] The feeding plate 30 is arranged directly above the guiding track 40. The bottom surface of the feeding plate 30 is fixedly connected to the upper surface of the first slider 41. The feeding plate 30 reciprocates linearly along the guiding track 40 through the first slider 41. The driving gear 70 is meshed and connected to the rack 54. The driving gear 70 is fixedly connected to the lower end of the first connecting rod 61. The upper end of the first connecting rod 61 is pivotally connected to the upper end of the second connecting rod 62. The upper end of the second connecting rod 62 is pivotally connected to the first slider 41. The rotating shaft 56 is connected to the output end of the rotating motor 20.

[0033] During specific implementation, the guiding block 55 includes a bottom hemispherical head 551 and a middle guiding part 552. A limiting guiding groove 511 is arranged at the top of the installation box body 51 corresponding to the middle guiding part. The bottom hemispherical head 551 is embedded in the concave guiding groove 57. The concave guiding groove 57 is machined according to the section of the bottom hemispherical head 551, ensuring that it is not easily worn and guaranteeing the stable and reliable linear running track.

[0034] During specific implementation, a supporting installation frame 80 is arranged on one side of the lower base 12 corresponding to the feeding plate 30. The supporting installation frame 80 includes a horizontal plate 81, a vertical plate 82, and an inclined rib plate 83. The vertical plate 82 is fixedly installed on one side of the lower base 12. The vertical plate 82 is fixedly connected to the horizontal plate 81 through the inclined rib plate 83. The part of the rotating shaft 56 protruding from the installation box body is connected to the output end of the rotating motor 20. The installation box body 51 and the rotating motor 20 are fixedly arranged on the horizontal plate 81.

[0035] During specific implementation, it further includes a supporting roller 90. A vertical supporting frame 100 is arranged on the upper surface of the lower base 12 close to one side of the guiding track 40. A supporting roller 90 is installed at the top of the vertical supporting frame 100. The front lower surface of the feeding plate 30 is supported on the supporting roller 90, ensuring that the feeding plate 30 reciprocates linearly in a stable and reliable horizontal state;

[0036] The width area of the supporting roller 90 covers the width of the feeding plate 30, ensuring the stable and reliable supporting and guiding of the feeding plate 30, and avoiding the instability of the feeding plate being supported only by the first slider 41 before reaching the upper surface of the lower base 12.

[0037] Its working principle is as follows: The rotating motor drives the cam assembly to rotate, thereby driving the two groups of guiding blocks located below the rack to reciprocate along the directions of the convex point, the transition arc groove, and the concave point, thereby driving the driving gear to rotate reciprocally according to the meshing stroke, and further driving the connecting rod assembly to drive the first slider to reciprocate linearly along the guiding track. It converts rotation into linear reciprocating driving force through the rotating motor, thereby ensuring the stable and reliable feeding of the metal sheet.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding mechanism for a punch press, characterized in that: It includes: A punch press, comprising an upper punching die head and a lower base; Rotate the motor; feed plate; A guide rail, which is fixed to the conveying beam and arranged along the feeding direction of the feeding plate, and a first sliding block is arranged on the guide rail; A cam assembly, comprising a mounting box, a cam, and a second slider, wherein a rack is disposed on the upper surface of the second slider, and two groups of downwardly convex guide blocks are fixedly disposed on the lower surface of the second slider, a rotating shaft is disposed inside the mounting box, a cam is sleeved on the rotating shaft, and two rows of concave guide grooves arranged in parallel are disposed on the outer surface of the cam, wherein the concave guide grooves include convex points, concave points, and transition arc grooves, and the bottoms of the two groups of guide blocks are respectively embedded in the concave guide grooves; A connecting rod assembly, comprising a first connecting rod and a second connecting rod; and a transmission gear, wherein the central axis of the transmission gear is fixedly arranged; The feeding plate is arranged directly above the guide track, the bottom of the feeding plate is fixedly connected to the upper surface of the first slider, the feeding plate moves back and forth linearly along the guide track through the first slider, the transmission gear is meshed and connected to the rack, the transmission gear is fixedly connected to the lower end of the first connecting rod, the upper end of the first connecting rod is pivotally connected to the upper end of the second connecting rod, the upper end of the second connecting rod is pivotally connected to the first slider, and the rotating shaft is connected to the output end of the rotating motor.

2. A feeding mechanism for a punch press according to claim 1, characterized in that: The guide block includes a bottom hemispherical head and a middle guide part. A limited guide groove is arranged on the top of the mounting box corresponding to the middle guide part. The bottom hemispherical head is embedded in the concave guide groove, and the concave guide groove is processed according to the cross section of the bottom hemispherical head.

3. A feeding mechanism for a punch press according to claim 1, characterized in that: It also includes a support mounting frame, which includes a horizontal plate, a vertical plate, and an inclined rib plate. The vertical plate is fixed to one side of the lower base, and the vertical plate is fixed to the horizontal plate through the inclined rib plate.

4. A feeding mechanism for a punch press according to claim 3, characterized in that: The installation box is located on the horizontal plate and is fixedly arranged.

5. A feeding mechanism for a punch press according to claim 4, characterized in that: The rotating motor is fixedly mounted on the horizontal plate, and the outer protruding mounting box portion of the rotating shaft is connected to the output end of the rotating motor.

6. A feeding mechanism for a punch press according to claim 4, characterized in that: The rotating motor is built in the installation box.

7. A feeding mechanism for a punch press according to claim 1, characterized in that: It also includes a supporting roller. A vertical supporting frame is arranged on the upper surface of the lower base near the guide track. A supporting roller is installed on the top of the vertical supporting frame. The lower surface of the front end of the feeding plate is supported by the supporting roller.

8. A feeding mechanism for a punch press according to claim 7, characterized in that: The width area of ​​the support roller covers the width of the feed plate.

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