High-speed punching machine convenient for workpiece fixing and used for gear production

Abstract

The utility model belongs to the technical field of servo punching machines, and particularly relates to a gear production high-speed punching machine convenient for fixing a workpiece, which comprises a punching machine body, a punch, a lifting hydraulic cylinder for providing lifting drive for the punch and a seat table I arranged below the punch, and two elastic fixing structures are symmetrically arranged on the punching machine body. In the process that an arranged punch moves downwards for punching, the bottom end face of a lifting sliding rod extrudes the upper end face of a gear being machined, the gear is stably fixed, the lifting sliding rod slides upwards relative to a sliding barrel, a tension spring is lengthened and stabilized, and final punching is completed; and in the upward moving process of the punch, the gear is adsorbed, so that the gear after punching is completed is conveniently disassembled, and the production benefit of the device is increased through the portable fixing gear and the portable disassembling gear.

Description

Technical Field

[0001] The utility model belongs to the technical field of servo punching machines, in particular to a high-speed punching machine for gear production which is convenient for fixing workpieces. Background Art

[0002] Gears refer to mechanical components with teeth on the rim that can continuously mesh to transmit motion and power. The application of gears in transmission has appeared very early. At the end of the 19th century, the principle of the gear cutting method and the special machine tools and tools that use this principle to cut gears appeared one after another. With the development of production, the smoothness of gear operation has received attention. However, with the continuous development of the gear industry, when processing and producing gears, multiple evenly distributed circular holes are usually punched on the web of the gear. Under the premise of ensuring the strength of the gear, the weight is reduced as much as possible to save materials and reduce energy consumption. In the process of punching holes in the prior art, there is no fixed structure, which causes the gear to vibrate during the processing, resulting in deviation of the processed hole, or the gear will stick to the punch after processing, and the structure makes unloading inconvenient and inconvenient;

[0003] In the prior art, for example, application number CN201921155969.0 discloses a punching device for gear production and processing, which limits the position of the gear by a limiting cylinder, and then uses two pressing plates to press the gear circumferentially to prevent the gear from shifting due to the vibration caused by punching. The circular hole position has high accuracy, the gear balance is good, and the defective rate is low;

[0004] When removing the processed gear according to the prior art patent, the gear needs to be removed from the limiting cylinder first. Since the axial hole of the gear is compatible with the limiting cylinder, the gear needs to be lifted vertically upwards accurately to be removed from the limiting cylinder manually, which can easily cause the gear to get stuck on the limiting column, making the disassembly process not very convenient and affecting the processing efficiency. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a high-speed punching machine for gear production which is convenient for fixing workpieces and has the effects of conveniently fixing the gear workpieces and conveniently disassembling the gear workpieces.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed punching machine for gear production that is convenient for fixing workpieces, comprising a punching machine body, a punch, a lifting hydraulic cylinder that provides lifting drive for the punch, and a seat platform that is located below the punch and is installed on the punching machine body, wherein two elastic fixing structures are symmetrically installed on the punching machine body, and the elastic fixing structure comprises an arc fixing piece fixedly arranged on the side of the punch, a slide cylinder is provided on the arc fixing piece, a lifting slide rod is vertically limited and slidably provided on the slide cylinder, a top limiting plate is fixedly provided on the top of the lifting slide rod, a tension spring is sleeved on the lifting slide rod, and the tension spring is located between the arc fixing piece and the top limiting plate, and a fixing block is fixedly provided on the bottom end of the lifting slide rod near the inner side of the punch; an electromagnet is embedded at the bottom end of the lifting slide rod, and a pressure switch is installed on one side of the bottom end face of the punch.

[0007] Place the gear to be punched on the upper end surface of the seat platform, start the lifting hydraulic cylinder of the device, so that the extension of the lifting hydraulic cylinder pushes the punch downward, and the gear is punched by pressing the punch downward. In the process of the punch moving downward to punch, the bottom end surface of the lifting slide bar is pressed on the upper end surface of the gear being processed to stabilize the gear. The lifting slide bar slides upward relative to the slide cylinder, and the tension spring is stretched, and finally the punching is completed;

[0008] When the punching is completed, the electromagnet is connected to the power supply for a period of time through the control center, and the electromagnet contacts and adsorbs the processing gear. After the punching process is completed, the lifting hydraulic cylinder is started to shrink, the punch is pulled upward, the elastic fixed structure moves upward with the punch, the tension spring shrinks and returns to its original length, and the lifting slide bar slides downward in the slide tube to the initial position. As the elastic fixed structure rises with the punch, the electromagnet adsorbs the gear and rises, lifting the processed gear from the platform. When the punch moves to the highest point as the lifting hydraulic cylinder shrinks, the gear adsorbed on the lifting slide bar can be removed by hand, and the electromagnet is powered off during the descent of the punch.

[0009] Optionally, a finger groove 1 is provided at a position close to the side of the bottom end surface of the punch, and a finger groove 2 is provided at one side of the upper end surface of the seat platform 1, and the position of the finger groove 2 corresponds to that of the finger groove 1;

[0010] By setting the finger groove one and the finger groove two, it is convenient to manually place the gears on the seat platform one or take the gears on the seat platform one, and the gears are prevented from being difficult to take because they are too close to the seat platform one. The position of the fingers is between the finger groove one and the finger groove two, so as to ensure the safety of the fingers when taking or placing the gears.

[0011] Optionally, an axial hole positioning column is fixedly provided in the middle of the seat, which is convenient for fitting the axial hole of the gear on the axial hole positioning column to stably fix the gear. A chamfer is provided at the edge of the upper end of the axial hole positioning column, which acts as a guide and facilitates fitting the axial hole of the gear on the axial hole positioning column.

[0012] Optionally, the seat platform one is replaced with the seat platform two, a finger groove three is provided at the edge position of the upper end surface of the seat platform two, a countersunk hole three is provided at the middle position of the upper end surface of the seat platform two, a threaded through hole is coaxially provided at the bottom end of the countersunk hole three, an axial hole positioning structure is installed on the seat platform two, the axial hole positioning structure includes an axial disc adapted to be installed between the countersunk hole three, a threaded column is coaxially fixedly provided at the bottom end of the axial disc, the threaded column is located in the threaded through hole and adapted to be threadedly connected with the seat platform two, and a axial column is coaxially fixedly provided at the upper end of the axial disc. Due to the threaded connection between the threaded column and the threaded through hole, the threaded column can be removed or installed from the threaded through hole by rotating the axial hole positioning structure, thereby realizing the replacement of the axial hole positioning structure, so that axial columns of different sizes can be adapted to gears of different sizes.

[0013] Optionally, a hexagonal countersunk hole is provided at the top end of the shaft column;

[0014] The shaft hole positioning structure can be conveniently rotated by inserting a hexagonal wrench into the inner side of the hexagonal countersunk hole, thereby facilitating installation and disassembly of the shaft hole positioning structure.

[0015] Optionally, a second chamfer is provided at the edge of the top end of the shaft column;

[0016] The chamfer 2 is provided to play a guiding role, making it easier to insert the shaft column into the shaft hole of the gear.

[0017] In summary, compared with the prior art, the beneficial effects of this solution are:

[0018] During the process of punching by moving the punch downward, the bottom end face of the lifting slide bar is pressed against the upper end face of the gear being processed, so that the gear is stably fixed. The lifting slide bar slides upward relative to the slide tube, and the tension spring is stretched to stably complete the final punching. The electromagnet is set to contact and adsorb the processed gear. After the punching process is completed, the gear is adsorbed during the upward movement of the punch, so that the gear can be conveniently disassembled after the punching is completed. The production efficiency of the device is increased by portable fixed gears and portable disassembled gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0020] Figure 2It is a structural schematic diagram of the first seat platform in the first embodiment of the present utility model.

[0021] Figure 3 It is a structural schematic diagram of the elastic fixing structure in the first embodiment of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the lifting hydraulic cylinder, the punch and the elastic fixing structure in the first embodiment of the utility model.

[0023] Figure 5 In the first embodiment of the present utility model Figure 4 A magnified view of the structure at center.

[0024] Figure 6 It is a structural schematic diagram of the second seating platform in the second embodiment of the present utility model.

[0025] Figure 7 It is a structural explosion diagram of the second seating platform in the second embodiment of the present utility model.

[0026] Figure 8 It is a structural schematic diagram of the axial hole positioning structure in the second embodiment of the utility model.

[0027] 10. Punch body; 11. Lifting hydraulic cylinder; 20. Punch; 30. Elastic fixing structure; 31. Arc fixing plate; 32. Slide; 33. Countersunk hole; 34. Connecting bolt; 35. Lifting slide rod; 36. Top limit plate; 37. Tension spring; 38. Fixing block; 39. Embedded groove; 40. Electromagnet; 41. Pressure switch; 50. Platform one; 51. Shaft hole positioning column one; 52. Chamfer one; 53. Finger groove two; 60. Platform two; 61. Finger groove three; 62. Countersunk hole three; 63. Threaded through hole; 70. Shaft hole positioning structure; 71. Shaft plate; 72. Threaded column; 73. Shaft column; 74. Hexagonal countersunk hole; 75. Chamfer two. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0029] Example 1: Reference Figure 1-Figure 5A high-speed punching machine for gear production that is convenient for fixing workpieces includes a punching machine body 10, a punch 20, a lifting hydraulic cylinder 11 for providing lifting drive for the punch 20, and a seat 50 installed on the punching machine body 10 below the punch 20. Two elastic fixing structures 30 are symmetrically installed on the punching machine body 10. The elastic fixing structure 30 includes an arc fixing plate 31 that is arranged to fit the side of the punch 20. Two countersunk holes 33 are provided on the arc fixing plate 31. Connecting bolts 34 are provided in the countersunk holes 33. The connecting bolt 34 passes through the countersunk hole 33 and is threadedly fixedly connected to the punch 20. A slide cylinder 32 is provided on the circular arc fixing plate 31. A lifting slide rod 35 is provided on the slide cylinder 32 for vertical limited sliding. A top limit plate 36 is fixed on the top of the lifting slide rod 35. A tension spring 37 is sleeved on the lifting slide rod 35. The tension spring 37 is located between the circular arc fixing plate 31 and the top limit plate 36. A fixing block 38 is fixed on the bottom end of the lifting slide rod 35 near the inner side of the punch 20.

[0030] Place the gear to be punched on the upper end surface of the platform 50, start the lifting hydraulic cylinder 11 of the device, and make the lifting hydraulic cylinder 11 extend to push the punch 20 downward, and punch the gear by pressing the punch 20 downward. In the process of the punch 20 moving downward to punch, the bottom end surface of the lifting slide bar 35 is pressed on the upper end surface of the gear being processed to stably fix the gear, and the lifting slide bar 35 slides upward relative to the slide tube 32, the tension spring 37 is stretched, and the final punching is stably completed.

[0031] The bottom end of the lifting slide bar 35 is provided with an embedding groove 39, in which an electromagnet 40 is embedded, and a pressure switch 41 is installed on one side of the bottom end surface of the punch 20. The punch body 10 is provided with a control center, and the electromagnet 40 and the pressure switch 41 are both electrically connected to the control center;

[0032] When punching, the bottom end surface of the punch 20 contacts with the gear, so that the pressure switch 41 contacts with the gear. The pressure switch 41 transmits the contact signal to the control center, and the electromagnet 40 is powered on for a period of time through the control center. The electromagnet 40 contacts and adsorbs the processing gear. After the punching process is completed, the lifting hydraulic cylinder 11 is started to shrink, the punch 20 is pulled upward, the elastic fixing structure 30 moves upward with the punch 20, the tension spring 37 shrinks and returns to its original length, and the lifting slide bar 35 slides downward in the slide tube 32 to the initial position. As the elastic fixing structure 30 rises with the punch 20, the electromagnet 40 adsorbs the gear and rises, and lifts the processed gear from the seat 50. When the punch 20 moves to the highest point as the lifting hydraulic cylinder 11 shrinks, the gear adsorbed on the lifting slide bar 35 can be removed by hand, realizing convenient disassembly of the gear after the punching is completed, and the electromagnet 40 is powered off during the descent of the punch 20.

[0033] In this embodiment, a finger groove 21 is provided at a position near the side of the bottom end surface of the punch 20, and a finger groove 2 53 is provided at one side of the upper end surface of the seat 1 50, and the position of the finger groove 2 53 corresponds to that of the finger groove 1 21;

[0034] By setting the finger groove 1 21 and the finger groove 2 53, it is convenient to manually place the gears on the seat 1 50 or take the gears on the seat 1 50, and the gears are prevented from being difficult to take because they are too close to the seat 1, and the position of the fingers is located between the finger groove 1 21 and the finger groove 2 53, so as to ensure the safety of the fingers when taking or placing the gears.

[0035] In this embodiment, an axial hole positioning column 51 is fixedly provided in the middle of the seat 50, which is convenient for fitting the axial hole of the gear on the axial hole positioning column 51 to stably fix the gear. A chamfer 52 is provided at the edge of the upper end of the axial hole positioning column 51, and the chamfer 52 serves as a guide, making it convenient for fitting the axial hole of the gear on the axial hole positioning column 51.

[0036] Embodiment 2: The difference between this embodiment and embodiment 1 is that the seat platform 1 50 is replaced by the seat platform 2 60, a finger groove 3 61 is provided at the edge of the upper end surface of the seat platform 2 60, a countersunk hole 3 62 is provided at the middle of the upper end surface of the seat platform 2 60, a threaded through hole 63 is coaxially provided at the bottom end of the countersunk hole 3 62, an axial hole positioning structure 70 is installed on the seat platform 2 60, the axial hole positioning structure 70 includes an axial disc 71 adapted to be installed between the countersunk hole 3 62, a threaded column 72 is coaxially fixed to the bottom end of the axial disc 71, the threaded column 72 is located in the threaded through hole 63 and is adapted to be threadedly connected to the seat platform 2 60, and a axial column 73 is coaxially fixed to the upper end of the axial disc 71;

[0037] Since the threaded column 72 is threadedly connected to the threaded through hole 63, the threaded column 72 can be removed or installed from the threaded through hole 63 by rotating the shaft hole positioning structure 70, so that the shaft hole positioning structure 70 can be replaced, so that shaft columns 73 of different sizes can be adapted to gears of different sizes.

[0038] In this embodiment, a hexagonal countersunk hole 74 is formed at the top of the shaft column 73;

[0039] The shaft hole positioning structure 70 can be conveniently rotated by inserting a hexagonal wrench into the inner side of the hexagonal countersunk hole 74 , thereby facilitating installation and disassembly of the shaft hole positioning structure 70 .

[0040] In this embodiment, a chamfer 75 is formed at the edge of the top of the shaft column 73;

[0041] The chamfer 75 provides a guide to facilitate the insertion of the shaft column 73 into the shaft hole of the gear.

[0042] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0043] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0044] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A high-speed punching machine for gear production that is convenient for fixing workpieces, characterized in that: The invention comprises a punching machine body (10), a punch (20), a lifting hydraulic cylinder (11) for providing lifting drive for the punch (20), and a seat (50) installed below the punch (20). Two elastic fixing structures (30) are symmetrically installed on the punching machine body (10). The elastic fixing structure (30) comprises a circular arc fixing plate (31) fixedly arranged on the side of the punch (20). A slide cylinder (32) is arranged on the circular arc fixing plate (31). A lifting slide rod (35) is arranged on the slide cylinder (32) for vertical limiting sliding. A top limiting plate (36) is fixedly arranged at the top end of the lifting slide rod (35). A tension spring (37) is sleeved on the lifting slide rod (35). An electromagnet (40) is embedded at the bottom end of the lifting slide rod (35). A pressure switch (41) is installed on one side of the bottom end surface of the punch (20).

2. A high-speed punching machine for gear production that is convenient for fixing workpieces according to claim 1, characterized in that: A finger groove 1 (21) is provided at a position close to the side of the bottom end surface of the punch (20), and a finger groove 2 (53) is provided at one side of the upper end surface of the seat platform 1 (50), and the position of the finger groove 2 (53) corresponds to that of the finger groove 1 (21).

3. A high-speed punching machine for gear production that is convenient for fixing workpieces according to claim 1, characterized in that: An axial hole positioning column (51) is fixedly provided in the middle of the seat platform (50), and a chamfer (52) is provided at the edge of the upper end of the axial hole positioning column (51).

4. A high-speed punching machine for gear production that is convenient for fixing workpieces according to claim 1, characterized in that: The seat platform one (50) is replaced with the seat platform two (60), the edge position of the upper end surface of the seat platform two (60) is provided with a finger groove three (61), the middle position of the upper end surface of the seat platform two (60) is provided with a countersunk hole three (62), the bottom end of the countersunk hole three (62) is provided with a threaded through hole (63) coaxially, the seat platform two (60) is provided with an axial hole positioning structure (70), the axial hole positioning structure (70) includes an axial disc (71) adapted to be installed between the countersunk hole three (62), the bottom end of the axial disc (71) is coaxially fixed with a threaded column (72), the threaded column (72) is located in the threaded through hole (63) and is adapted to be threadedly connected with the seat platform two (60), and the upper end of the axial disc (71) is coaxially fixed with a axial column (73).

5. A high-speed punching machine for gear production that is convenient for fixing workpieces according to claim 4, characterized in that: The top end of the shaft column (73) is provided with a hexagonal countersunk hole (74).

6. A high-speed punching machine for gear production that is convenient for fixing workpieces according to claim 4, characterized in that: A second chamfer (75) is provided at the edge of the top end of the shaft column (73).

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