Precise reciprocating swing device suitable for net punching machine tool rest

Abstract

The utility model discloses a precise reciprocating swing device suitable for a net punching machine knife rest, which belongs to the technical field of machinery and comprises a machine base, a driving mechanism is arranged in the machine base, a swing cam is fixedly connected onto the driving mechanism, a U-shaped clamping plate is fixedly mounted in the middle of the machine base, and a swing mechanism is arranged on the machine base below the U-shaped clamping plate. The swing mechanism is fixedly connected with an upper cutter, the lower end of the machine base is fixedly provided with a cutter holder, the lower end of the machine base is fixedly provided with a lower cutter, the swing cam is matched with the swing mechanism, so that the swing cam intermittently extrudes a bearing when rotating, the cutter rest is pushed to move rightwards, and the bearing is driven to rotate under the action of the shock absorber. Reset of the tool rest is achieved, the motion is continuously circulated, the effect that the tool rest precisely swings in a reciprocating mode is finally achieved, the reciprocating motion frequency of the tool rest can be adjusted by changing the rotating speed of the driving motor, and therefore different machining requirements are met.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical technology, and particularly relates to a precise reciprocating swing device for a knife holder of a screen punching machine. Background Art

[0002] A mesh punching machine is a device that punches holes of different shapes on different materials. It can punch holes of different shapes on stainless steel plates, low-carbon steel plates, galvanized plates and other plates for easy processing and use. For example, in the production process of metal mesh baskets, metal sheets need to be made into metal meshes through a mesh punching machine.

[0003] The problem with the existing technology is that it is difficult to accurately control the swing speed and frequency of the tool holder during the punching process of the traditional screen punching machine, which makes it impossible to adapt to various processing requirements, reduces the scope of application and production efficiency. In addition, inaccurate swing of the tool holder will increase burrs and defects on the cutting edge, reducing production quality. Utility Model Content

[0004] In response to the problems existing in the prior art, the utility model provides a precise reciprocating swinging device for the tool holder of a screen punching machine, which has the advantage of improving the swinging accuracy of the tool holder and solves the problem that the existing screen punching machines are difficult to accurately control the swinging speed and frequency of the tool holder during the screen punching process, resulting in the inability to adapt to various processing requirements, reducing the scope of application and production efficiency. In addition, inaccurate swinging of the tool holder will also increase burrs and defects on the cutting edge, reducing the production quality.

[0005] The utility model is implemented as follows: a precise reciprocating swing device suitable for a knife holder of a screen punching machine comprises a machine base, a driving mechanism is arranged in the machine base, the driving mechanism comprises a driving motor, a swing cam is fixedly connected to the driving mechanism, a U-shaped clamp is fixedly installed in the middle of the machine base, a swing mechanism is arranged on the machine base below the U-shaped clamp, an upper knife is fixedly connected to the swing mechanism, a knife seat is fixedly installed at the lower end of the machine base, and a lower knife is fixedly connected to the knife seat.

[0006] As a preferred embodiment of the utility model, a first mounting groove and a second mounting groove are respectively opened on both sides of the upper end of the base, the first mounting groove is located above the second mounting groove, and the driving mechanism is located in the first mounting groove and the second mounting groove.

[0007] As a preferred embodiment of the utility model, the driving mechanism includes a first synchronous wheel and a second synchronous wheel, the first synchronous wheel and the second synchronous wheel are both rotatably installed in the first mounting groove, the driving motor is fixedly installed above the first mounting groove, the output shaft of the driving motor is fixedly connected to the first synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a first belt.

[0008] As a preferred embodiment of the utility model, a third synchronous wheel and a fourth synchronous wheel are rotatably installed in the second installation groove respectively, the third synchronous wheel and the fourth synchronous wheel are connected by a second belt, the third synchronous wheel and the second synchronous wheel are connected by a main shaft, and the inner side of the fourth synchronous wheel is fixedly connected to the swing cam.

[0009] As a preferred embodiment of the utility model, placement grooves are provided on both sides of the inner wall of the base located in the middle, both ends of the U-shaped clamp are fixedly installed on the placement grooves, and a third installation groove is provided on the base located below the placement groove, and the third installation groove is located on the same side as the first installation groove.

[0010] As a preferred embodiment of the utility model, the swing mechanism includes a tool holder, which is arranged at the lower end of the U-shaped clamp through a plurality of pins, and a plurality of swing holes are opened on the tool holder corresponding to each pin, and the lower surface of the tool holder is fixedly connected to the upper tool.

[0011] As a preferred embodiment of the utility model, a first fixing hole is formed on the upper surface of one end of the tool holder, a second fixing hole is formed on the side surface of the other end of the tool holder, a bearing is fixedly installed in the first fixing hole, and the bearing is fixedly connected to the tool holder by a fixing screw.

[0012] As a preferred embodiment of the utility model, a screw is fixedly connected in the second fixing hole, a sleeve is sleeved on the outer surface of the middle part of the screw, the sleeve is fixedly installed on the third mounting groove, a swing groove is opened in the middle part of the sleeve, the screw extends to the outside of the sleeve through the swing groove and a nut is fixedly connected to the end part, a shock absorber is fixedly connected in the sleeve, and a through hole for the screw movement is opened in the middle part of the shock absorber.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model cooperates with the swing cam and the swing mechanism so that the swing cam intermittently squeezes the bearing when rotating, thereby pushing the tool holder to move to the right. Under the action of the shock absorber, the tool holder is reset. This movement is continuously circulated, and finally the tool holder is made to swing back and forth accurately. Secondly, the frequency of the reciprocating motion of the tool holder can be adjusted by changing the speed of the drive motor, thereby adapting to different processing requirements.

[0015] 2. The utility model realizes the purpose of synchronous operation of various structures through the setting of the driving mechanism, thereby reducing energy consumption and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural cutaway diagram of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the local structure of the utility model;

[0019] Figure 4 For the utility model Figure 2 A magnified view of the structure at center;

[0020] Figure 5 For the utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0021] In the figure: 1, machine base; 101, first mounting slot; 102, second mounting slot; 103, placement slot; 104, third mounting slot; 2, driving mechanism; 201, first synchronous wheel; 202, second synchronous wheel; 203, driving motor; 204, first belt; 205, third synchronous wheel; 206, main shaft; 207, fourth synchronous wheel; 208, second belt; 3, U-shaped clamp; 4, latch; 5, swing mechanism; 501, tool holder; 5011, first fixing hole; 5012, second fixing hole; 5013, swing hole; 502, bearing; 503, fixing screw; 504, sleeve; 5041, swing slot; 505, shock absorber; 506, screw; 507, nut; 6, swing cam; 7, upper tool; 8, lower tool; 9, tool holder. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 As shown, an embodiment of the utility model provides a precise reciprocating swing device suitable for a knife holder of a screen punching machine, comprising a machine base 1, a driving mechanism 2 is arranged in the machine base 1, the driving mechanism 2 comprises a driving motor 203, a swing cam 6 is fixedly connected to the driving mechanism 2, a U-shaped clamp 3 is fixedly installed in the middle of the machine base 1, a swing mechanism 5 is arranged on the machine base 1 below the U-shaped clamp 3, an upper knife 7 is fixedly connected to the swing mechanism 5, a knife seat 9 is fixedly installed at the lower end of the machine base 1, and a lower knife 8 is fixedly connected to the knife seat 9.

[0025] Furthermore, a first mounting groove 101 and a second mounting groove 102 are respectively opened on both sides of the upper end of the base 1 , the first mounting groove 101 is located above the second mounting groove 102 , and the driving mechanism 2 is located in the first mounting groove 101 and the second mounting groove 102 .

[0026] Furthermore, the driving mechanism 2 includes a first synchronous wheel 201 and a second synchronous wheel 202, both of which are rotatably installed in the first mounting groove 101, and the driving motor 203 is fixedly installed above the first mounting groove 101. The output shaft of the driving motor 203 is fixedly connected to the first synchronous wheel 201, and the first synchronous wheel 201 and the second synchronous wheel 202 are connected by a first belt 204. A third synchronous wheel 205 and a fourth synchronous wheel 207 are rotatably installed in the second mounting groove 102 respectively, and the third synchronous wheel 205 and the fourth synchronous wheel 207 are connected by a second belt 208. The third synchronous wheel 205 and the second synchronous wheel 202 are connected by a main shaft 206, and the inner side of the fourth synchronous wheel 207 is fixedly connected to the swing cam 6.

[0027] In the present application, a driving motor 203 is provided to drive the first synchronous wheel 201 to rotate, and under the action of the first belt 204, the second synchronous wheel 202 is synchronously driven to rotate, and under the action of the main shaft 206, the third synchronous wheel 205 is driven to rotate, and then under the transmission of the second belt 208, the fourth synchronous wheel 207 is driven to rotate, and the rotation of the fourth synchronous wheel 207 finally drives the swing cam 6 to rotate.

[0028] Furthermore, placement grooves 103 are opened on both sides of the inner wall of the base 1 located in the middle, and both ends of the U-shaped clamping plate 3 are fixedly installed on the placement grooves 103. A third installation groove 104 is opened on the base 1 located below the placement groove 103, and the third installation groove 104 is located on the same side as the first installation groove 101.

[0029] Furthermore, the swing mechanism 5 includes a tool holder 501, which is arranged at the lower end of the U-shaped clamp 3 through a plurality of pins 4. A plurality of swing holes 5013 are opened on the tool holder 501 corresponding to each pin 4, and the lower surface of the tool holder 501 is fixedly connected to the upper tool 7.

[0030] In the present application, the arrangement of the U-shaped clamp 3 and the plurality of latches 4 allows the tool holder 501 to be suspended on the plurality of latches 4, and the arrangement of the swing hole 5013 provides space for the tool holder 501 to swing back and forth, thereby ensuring the smooth reciprocating swing.

[0031] Furthermore, a first fixing hole 5011 is provided on the upper surface of one end of the tool holder 501, and a second fixing hole 5012 is provided on the side of the other end of the tool holder 501. A bearing 502 is fixedly installed in the first fixing hole 5011, and the bearing 502 is fixedly connected to the tool holder 501 by a fixing screw 503. A screw 506 is fixedly connected in the second fixing hole 5012. A sleeve 504 is sleeved on the outer surface of the middle part of the screw 506. The sleeve 504 is fixedly installed on the third mounting groove 104. A swinging groove 5041 is provided in the middle part of the sleeve 504. The screw 506 extends to the outside of the sleeve 504 through the swinging groove 5041 and a nut 507 is fixedly connected to the end thereof. A shock absorber 505 is fixedly connected in the sleeve 504, and a through hole for the movement of the screw 506 is provided in the middle part of the shock absorber 505.

[0032] In the present application, the inner side of the swing cam 6 is set as an inclined slope, and the diameter of the bearing 502 is larger than the inner diameter of the first fixing hole 5011, so that the bearing 502 extends out of the tool holder 501, and the inner side of the shock absorber 505 contacts the inner wall of the second fixing hole 5012;

[0033] When the fourth synchronous wheel 207 drives the swing cam 6 to rotate 90 degrees, the swing cam 6 will squeeze the bearing 502, thereby pushing the tool holder 501 to move to the right. At this time, the shock absorber 505 is compressed. When the swing cam 6 rotates 90 degrees again, the swing cam 6 releases the squeezing of the bearing 502, and the shock absorber 505 slowly resets. Under the action of the shock absorber 505, the tool holder 501 is reset. This movement is continuously circulated, and finally the tool holder 501 is made to swing back and forth.

[0034] The working principle of this utility model:

[0035] When in use, first start the driving motor 203 to drive the first synchronous wheel 201 to rotate, and under the action of the first belt 204, the second synchronous wheel 202 is synchronously driven to rotate, and under the action of the main shaft 206, the third synchronous wheel 205 is further driven to rotate, and then under the transmission of the second belt 208, the fourth synchronous wheel 207 is driven to rotate, and through the rotation of the fourth synchronous wheel 207, the swing cam 6 is finally driven to rotate. When the swing cam 6 rotates 90 degrees, the swing cam 6 will squeeze the bearing 502, thereby pushing the tool holder 501 to move to the right. At this time, the shock absorber 505 is compressed. When the swing cam 6 rotates 90 degrees again, the swing cam 6 releases the squeezing of the bearing 502, and the shock absorber 505 slowly resets. Under the action of the shock absorber 505, the tool holder 501 is reset. This movement is continuously cycled, and finally the effect of making the tool holder 501 swing back and forth is achieved.

[0036] To sum up: this is a precise reciprocating swing device for the tool holder of the screen punching machine. Through the cooperation of the swing cam 6 and the swing mechanism 5, the swing cam 6 intermittently squeezes the bearing 502 when rotating, thereby pushing the tool holder 501 to move to the right. Under the action of the shock absorber 505, the tool holder 501 is reset. This movement is continuously circulated, and finally the effect of making the tool holder 501 swing back and forth accurately is achieved. Secondly, the frequency of the reciprocating motion of the tool holder 501 can be adjusted by adjusting the speed of the drive motor 203, so as to adapt to different processing requirements; through the setting of the drive mechanism 2, the purpose of achieving synchronous operation between the structures is achieved, thereby reducing energy consumption and operating costs.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise reciprocating swing device for a knife holder of a screen punching machine, comprising a machine base (1), characterized in that: A driving mechanism (2) is arranged inside the machine base (1), the driving mechanism (2) comprises a driving motor (203), a swing cam (6) is fixedly connected to the driving mechanism (2), a U-shaped clamp (3) is fixedly installed in the middle of the machine base (1), a swing mechanism (5) is arranged on the machine base (1) below the U-shaped clamp (3), an upper tool (7) is fixedly connected to the swing mechanism (5), a tool holder (9) is fixedly installed at the lower end of the machine base (1), and a lower tool (8) is fixedly connected to the tool holder (9).

2. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 1, characterized in that: A first mounting groove (101) and a second mounting groove (102) are respectively provided on both sides of the upper end of the machine base (1); the first mounting groove (101) is located above the second mounting groove (102); and the driving mechanism (2) is located in the first mounting groove (101) and the second mounting groove (102).

3. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 2, characterized in that: The driving mechanism (2) comprises a first synchronous wheel (201) and a second synchronous wheel (202), wherein the first synchronous wheel (201) and the second synchronous wheel (202) are both rotatably mounted in a first mounting groove (101), the driving motor (203) is fixedly mounted above the first mounting groove (101), the output shaft of the driving motor (203) is fixedly connected to the first synchronous wheel (201), and the first synchronous wheel (201) and the second synchronous wheel (202) are connected via a first belt (204).

4. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 3, characterized in that: A third synchronous wheel (205) and a fourth synchronous wheel (207) are rotatably mounted in the second mounting groove (102), respectively; the third synchronous wheel (205) and the fourth synchronous wheel (207) are connected via a second belt (208); the third synchronous wheel (205) and the second synchronous wheel (202) are connected via a main shaft (206); and the inner side of the fourth synchronous wheel (207) is fixedly connected to the swing cam (6).

5. The precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 2, characterized in that: Both sides of the inner wall of the machine base (1) located in the middle are provided with placement grooves (103), both ends of the U-shaped clamping plate (3) are fixedly mounted on the placement grooves (103), and a third mounting groove (104) is provided on the machine base (1) located below the placement groove (103), and the third mounting groove (104) and the first mounting groove (101) are located on the same side.

6. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 5, characterized in that: The swing mechanism (5) comprises a tool holder (501), the tool holder (501) being arranged at the lower end inside the U-shaped clamping plate (3) via a plurality of latches (4), a plurality of swing holes (5013) being provided on the tool holder (501) corresponding to each latch (4), and the lower surface of the tool holder (501) being fixedly connected to the upper tool (7).

7. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 6, characterized in that: A first fixing hole (5011) is provided on the upper surface of one end of the tool holder (501), and a second fixing hole (5012) is provided on the side surface of the other end of the tool holder (501). A bearing (502) is fixedly installed in the first fixing hole (5011), and the bearing (502) is fixedly connected to the tool holder (501) by a fixing screw (503).

8. A precise reciprocating swing device for a knife holder of a screen punching machine as claimed in claim 7, characterized in that: A screw (506) is fixedly connected inside the second fixing hole (5012), a sleeve (504) is sleeved on the outer surface of the middle part of the screw (506), the sleeve (504) is fixedly installed on the third installation groove (104), a swinging groove (5041) is opened in the middle part of the sleeve (504), the screw (506) extends to the outside of the sleeve (504) through the swinging groove (5041) and a nut (507) is fixedly connected to the end part, a shock absorber (505) is fixedly connected inside the sleeve (504), and a through hole for the movement of the screw (506) is opened in the middle part of the shock absorber (505).

Images