A single-point servo punching machine for part stamping

Abstract

The present invention discloses a single-point servo punching press for part stamping, which relates to the technical field of punching presses and solves the problem that the gears of existing punching presses are easily worn during emergency braking. It includes a punching press body, a gear box is arranged inside the punching press body, and a driving gear shaft and a transmission gear shaft are rotatably installed inside the gear box. A driving gear is fixed on the outside of the driving gear shaft. It also includes a transmission gear installed on the outside of the transmission gear shaft. A plurality of buffer grooves are equiangularly opened on the outside of the transmission gear shaft, and a docking component is installed inside the transmission gear and is docked with the buffer grooves. An insertion port is opened inside the transmission gear shaft. Through optimizing the brake in the existing punching press, and through the mutual cooperation of the designed transmission gear shaft and the transmission gear, when the transmission gear shaft is braked, the transmission gear can still continue to rotate a certain angle, so that after emergency braking, it can meet the requirement that the driving gear continues to rotate a certain angle due to inertia, and avoid wear between them.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, in particular to a single-point servo punching machine for parts punching. Background Art

[0002] The single-point servo punch press is mainly driven by an internal servo motor, which drives the driving gear shaft and other gear sets to rotate, so that the crankshaft drives the connecting rod to move up and down to achieve the movement of the slider, thereby satisfying the single-point continuous pressing operation.

[0003] The existing single-point servo punch press is also provided with a brake, which is mainly used for emergency braking of the transmission gear shaft and meshes with the driving gear shaft connected to the output end of the servo motor. However, during emergency braking, the servo motor generally continues to rotate at a certain angle, and also drives the driving gear shaft and the gear thereon to continue to rotate. After the other meshing transmission gear shaft is emergency braked, the gear meshing with its driving gear shaft will be emergency braked. The driving gear shaft continues to rotate due to the servo motor and the outer gear continues to rotate due to inertia, which causes a large force to be applied to the transmission gear shaft during emergency braking, making it easy for wear to occur between the meshing gears. For this reason, we propose a single-point servo punch press for parts stamping. Summary of the invention

[0004] The object of the present invention is to provide a single-point servo punch press for parts punching which can avoid wear on gears during emergency braking, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a single-point servo punch press for parts stamping, comprising a punch press body, a gear box is arranged in the punch press body, and a driving gear shaft and a transmission gear shaft are rotatably installed in the gear box, a driving gear is fixed on the outside of the driving gear shaft, and also comprises a transmission gear installed on the outside of the transmission gear shaft, a plurality of buffer grooves are opened at equal angles on the outside of the transmission gear shaft, and a docking assembly connected with the buffer grooves is installed on the inside of the transmission gear, an insertion interface is opened in the transmission gear shaft, and an insertion rod is inserted in the insertion interface, a sliding rod is slidably inserted in the outer end of the insertion rod, and a mounting frame is fixed on the outer end of the sliding rod, and a braking assembly for braking the transmission gear shaft is installed on the mounting frame.

[0006] Preferably, the docking component includes a docking block. An installation groove is formed inside the transmission gear, and the docking block is fixed in the installation groove. An arc-shaped rod that is slidably inserted into the docking block is fixed in the buffer groove, and a buffer spring for pushing the docking block to move outward is sleeved outside the arc-shaped rod. A clamping component is installed in the installation groove, and a clamping interface communicating with the insertion interface is formed in the buffer groove. Through the designed docking component, the transmission gear can be connected to the transmission gear shaft and rotate synchronously, and a buffering effect can be achieved when braking the transmission gear.

[0007] Preferably, the clamping component includes two connecting rods fixed in the installation groove. A clamping plate is slidably inserted at the bottom ends of the two connecting rods. The cross-sectional shape of the clamping plate is T-shaped, and the top of the clamping plate is slidably inserted into the inner wall of the installation groove, and the bottom slides through the clamping interface. A chamfer is formed at the bottom of the clamping plate, and a rounded corner is formed at one end of the insertion rod located in the insertion interface. A clamping spring for pushing the docking plate to move downward is sleeved outside the connecting rod. The designed clamping component is used for clamping between the transmission gear and the transmission gear shaft.

[0008] Preferably, a chamfer is formed on the side of the bottom end of the clamping plate, and a docking groove is formed in the buffer groove. The docking groove and the clamping interface are inclined planes. The inclined plane design enables the clamping plate to move along the inclined plate into the docking groove.

[0009] Preferably, the braking component includes a bidirectional threaded rod rotatably installed at both ends inside the mounting bracket. Moving seats are threadedly sleeved at both ends of the bidirectional threaded rod. A sliding column fixed inside the mounting bracket is slidably inserted into both moving seats. A pushing component for pushing the insertion rod is fixed inside the moving seat, and a driving component for driving the bidirectional threaded rod to rotate is installed at the bottom of the moving seat. A support rod is fixed on the mounting bracket, and a braking component is rotatably installed at the outer end of the support rod. Through the designed braking component, the insertion rod can be pushed first and then the transmission gear shaft can be braked.

[0010] Preferably, the braking component includes two braking rings rotatably installed outside the support rod. Braking grooves are formed at the positions of the insertion rod corresponding to the braking rings. A pushing platform is fixed inside the moving seat. Magnetic sheets that attract each other are fixed on the adjacent sides of the pushing platform and the braking ring. The designed braking component is used for braking the insertion rod.

[0011] Preferably, the pushing member includes a pushing rod slidably inserted into the inner side of the moving seat. A contact plate is fixed to the outer end of the pushing rod, and a pressing plate that abuts against the moving seat is fixed to the other end. An inclined opening that fits against the outer end of the contact plate is formed on the outer side of the insertion rod. A pushing spring for pushing the contact plate to move outward is sleeved on the outer side of the pushing rod. A tension spring that is fixed to the insertion rod and the outer wall of the mounting bracket is sleeved on the outer side of the sliding rod. The designed pushing member is used to push the insertion rod forward, and the tension spring is used for its reset.

[0012] Preferably, the driving member includes a driving motor fixed to the bottom of the mounting bracket. Linkage gears that mesh with each other are fixed to the output end of the driving motor and the outer side of the bidirectional threaded rod. Designing the driving motor at the bottom of the mounting bracket can greatly reduce the space occupation.

[0013] Preferably, a brake pad is fixed to the inner side of the brake ring, and the outer wall of the brake groove is a matte surface, which improves the friction force and makes the braking effect better.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By optimizing the brake in the existing punching machine, through the mutual cooperation of the designed transmission gear shaft and the transmission gear, when the transmission gear shaft is braked, the transmission gear can still continue to rotate a certain angle, so that after emergency braking, the driving gear can continue to rotate a certain angle due to inertia, avoiding wear between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the internal structure of a partial cross-section of the present invention;

[0018] Figure 3 is a schematic diagram of the connection structure between the driving gear shaft and the transmission gear shaft in the gearbox of the present invention;

[0019] Figure 4 is a schematic diagram of the brake assembly structure of the present invention;

[0020] Figure 5 is Figure 4 the enlarged view at A in

[0021] Figure 6 is a schematic diagram of the positional relationship between the transmission gear shaft and the insertion rod after partial cross-section of the present invention;

[0022] Figure 7 is a rear view of the partial cross-section of the transmission gear shaft of the present invention;

[0023] Figure 8 is Figure 7Enlarged view at position B in the figure;

[0024] Figure 9 This is a schematic structural diagram of the docking component of the present invention.

[0025] In the figure: 1 - punching press body; 2 - gearbox; 3 - driving gear shaft; 4 - transmission gear shaft; 5 - driving gear; 6 - transmission gear; 7 - buffer groove; 8 - docking component; 9 - insertion interface; 10 - insertion rod; 11 - sliding rod; 12 - mounting bracket; 13 - braking component; 14 - docking block; 15 - mounting groove; 16 - arc-shaped rod; 17 - buffer spring; 18 - clamping component; 19 - clamping interface; 20 - connecting rod; 21 - clamping plate; 22 - docking groove; 23 - inclined plane; 24 - bidirectional threaded rod; 25 - moving seat; 26 - sliding column; 27 - pushing component; 28 - driving component; 29 - support rod; 30 - braking piece; 31 - braking ring; 32 - braking groove; 33 - pushing platform; 34 - pushing rod; 35 - contact plate; 36 - abutting plate; 37 - inclined opening; 38 - pushing spring; 39 - tension spring; 40 - driving motor; 41 - linkage gear; 42 - clamping spring. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0027] Embodiment 1

[0028] Please refer to Figures 1-3 , a single-point servo punching press for stamping a kind of part in the figure, including a punching press body 1. There is a gearbox 2 inside the punching press body 1, and a driving gear shaft 3 and a transmission gear shaft 4 are rotatably installed inside the gearbox 2. A driving gear 5 is fixed on the outside of the driving gear shaft 3. It also includes a transmission gear 6 installed on the outside of the transmission gear shaft 4. A plurality of buffer grooves 7 are equally angled on the outside of the transmission gear shaft 4. And a docking component 8 is installed inside the transmission gear 6 and is docked with the buffer groove 7. An insertion interface 9 is opened inside the transmission gear shaft 4, and an insertion rod 10 is inserted into the insertion interface 9. The outer end of the insertion rod 10 is slidably inserted with a sliding rod 11, and the outer end of the sliding rod 11 is fixed with a mounting bracket 12. A braking component 13 for braking the transmission gear shaft 4 is installed on the mounting bracket 12.

[0029] It should be noted that: in this solution, the internal structure of the gearbox 2 inside the existing punching press is optimized. By improving the brake and the transmission gear shaft 4, it can meet the requirement of braking the transmission gear shaft 4 while avoiding wear between the driving gear 5 and the transmission gear 6.

[0030] Please refer to Figures 6-9 As shown in the figure, the docking component 8 in the figure includes a docking block 14. An installation groove 15 is formed inside the transmission gear 6, and the docking block 14 is fixed in the installation groove 15. An arc-shaped rod 16 that is slidably inserted into the docking block 14 is fixed in the buffer groove 7, and a buffer spring 17 for pushing the docking block 14 to move outward is sleeved outside the arc-shaped rod 16. A clamping member 18 is installed in the installation groove 15, and a clamping interface 19 that communicates with the insertion interface 9 is formed in the buffer groove 7;

[0031] It should be noted that: the clamping member 18 in the docking component 8 is clamped with the clamping interface 19, so that the transmission gear 6 can drive the transmission gear shaft 4 to rotate. The designed buffer spring 17 and buffer groove 7 enable the transmission gear 6 to continue to rotate a certain angle along the buffer groove 7 after the transmission gear shaft 4 is braked;

[0032] It is worth noting that: the docking block 14 is closely attached to the inner wall of the buffer groove 7, making the transmission gear 6 more stable during buffer rotation.

[0033] Among them, please refer to Figure 8 and Figure 9 As shown in the figure, the clamping member 18 includes two connecting rods 20 fixed in the installation groove 15. A clamping plate 21 is slidably inserted at the bottom ends of the two connecting rods 20. The cross-sectional shape of the clamping plate 21 is T-shaped, and the top of the clamping plate 21 is slidably inserted into the inner wall of the installation groove 15, and the bottom slides through the clamping interface 19. A chamfer is formed at the bottom of the clamping plate 21, and a rounded corner is formed at one end of the insertion rod 10 located in the insertion interface 9. A clamping spring 42 for pushing the docking plate 21 to move downward is sleeved outside the connecting rod 20;

[0034] It should be noted that: by inserting the clamping plate 21 into the clamping interface 19, the rotation of the transmission gear 6 can drive the synchronous rotation of the transmission gear shaft 4. At the same time, as the insertion rod 10 extends, the clamping plate 21 will be pushed open, causing the clamping plate 21 to disengage from the clamping interface 19. Thus, after the transmission gear shaft 4 is braked, the transmission gear 6 can continue to rotate a certain angle, avoiding contact wear between the gears.

[0035] It is worth noting that: through the T-shaped clamping plate 21, the clamping plate 21 can be prevented from disengaging from the installation groove 15.

[0036] At the same time, please refer to Figure 8 As shown in the figure, a chamfer is formed on the side surface at the bottom end of the clamping plate 21, and a docking groove 22 is formed in the buffer groove 7, and an inclined surface 23 is provided at the docking groove 22 and the clamping interface 19;

[0037] It should be noted that: through the design of the inclined surface 23 and the docking groove 22, after the clamping plate 21 disengages from the clamping interface 19, it can enter the docking groove 22 along the inclined surface 23, making the buffer rotation of the transmission gear 6 more convenient.

[0038] In addition, please refer to Figure 3 and Figure 4 , in the illustrated braking assembly 13, a bidirectional threaded rod 24 is rotatably installed at both ends inside the mounting bracket 12. Both ends of the bidirectional threaded rod 24 are threadedly sleeved with moving seats 25, and a sliding column 26 fixed inside the mounting bracket 12 is slidably inserted into both moving seats 25. A pushing member 27 for pushing the insertion rod 10 is fixed inside the moving seat 25, and a driving member 28 for driving the rotation of the bidirectional threaded rod 24 is installed at the bottom of the moving seat 25. A support rod 29 is fixed on the mounting bracket 12, and a braking member 30 is rotatably installed at the outer end of the support rod 29;

[0039] It should be noted that: the designed driving member 28 provides power to drive the rotation of the bidirectional threaded rod 24, so that the two moving seats 25 can move synchronously, driving the pushing member 27 to move simultaneously, and enabling the insertion rod 10 to move forward stably.

[0040] Meanwhile, please refer to Figure 4 , in the illustrated braking member 30, two braking rings 31 are rotatably installed on the outer side of the support rod 29. Braking grooves 32 are formed at the positions of the insertion rod 10 corresponding to the braking rings 31, and a pushing platform 33 is fixed inside the moving seat 25. Magnetically attracting sheets are fixed on the adjacent sides of the pushing platform 33 and the braking rings 31;

[0041] It should be noted that: the moving seat 25 drives the two pushing platforms 33 to move, thereby squeezing the braking rings 31 so that they can abut against the inner wall of the braking grooves 32 to achieve a braking effect;

[0042] It is worth noting that: the designed magnetically attracting sheets enable the braking rings 31 to be opened and not to abut against the inner wall of the braking grooves 32 when the pushing platforms 33 move outward.

[0043] In addition, please refer to Figure 4 and Figure 5 , in the illustrated pushing member 27, a pushing rod 34 is slidably inserted into the inner side of the moving seat 25. A contact plate 35 is fixed at the outer end of the pushing rod 34, and a pressing plate 36 abutting against the moving seat 25 is fixed at the other end. An inclined opening 37 that fits with the outer end of the contact plate 35 is formed on the outer side of the insertion rod 10. A pushing spring 38 for pushing the contact plate 35 to move outward is sleeved on the outer side of the pushing rod 34, and a pulling spring 39 fixed to the outer walls of the insertion rod 10 and the mounting bracket 12 is sleeved on the outer side of the sliding rod 11;

[0044] It should be noted that: as the moving seat 25 moves, the two contact plates 35 are driven to move along the inclined opening 37, thereby being able to squeeze the insertion rod 10 to make the insertion rod 10 move forward and push open the clamping plate 21, facilitating the subsequent buffered rotation of the transmission gear 6.

[0045] Principle of emergency braking for the transmission gear shaft 4: First, power is provided by the driving member 28 to drive the rotation of the bidirectional threaded rod 24, so that the two moving seats 25 can move synchronously. First, it will drive the contact plate 35 to move outward, squeeze the outer wall of the inclined opening 37, drive the insertion rod 10 to move forward, push open the clamping plate 21, and then the moving seat 25 drives the pushing platform 33 to move, so as to tightly press the braking ring 31, realize the fitting of the braking groove 32, and brake the transmission gear shaft 4. At this time, the transmission gear 6 is engaged with the driving gear 5. During emergency braking, the servo motor of the punching machine also stops immediately. Therefore, the driving gear 5 will continue to rotate a certain angle. At this time, it drives the transmission gear 6 to continue to rotate. The transmission gear 6 continues to rotate in the buffer groove 7 through the docking block 14, so as to meet the continuous rotation of the driving gear 5, and at the same time keep the transmission gear shaft 4 braked immediately, avoiding gear meshing wear;

[0046] When the punching machine restarts, at this time, the servo motor of the punching machine first reverses a certain angle, so that the transmission gear 6 can reverse, so that the docking block 14 reverses along the buffer groove 7, and the clamping member 18 and the clamping port 19 are clamped again, which is convenient for the next emergency braking.

[0047] Embodiment 2

[0048] Please refer to Figure 4 and Figure 5 , this embodiment further illustrates the first embodiment. The driving member 28 in the figure includes a driving motor 40 fixed to the bottom of the mounting frame 12, and linkage gears 41 that are fixedly engaged are provided on both the output end of the driving motor 40 and the outside of the bidirectional threaded rod 24;

[0049] It should be noted that: designing the driving motor 40 at the bottom of the mounting frame 12 can reduce the space occupation and make it more convenient to install in the punching machine.

[0050] Embodiment 3

[0051] Please refer to Figure 4 , this embodiment further illustrates other embodiments. A brake pad is fixed to the inner side of the braking ring 31 in the figure, and the outer wall of the braking groove 32 is a matte surface.

[0052] It should be noted that: in order to improve the braking effect of the braking ring 31 on the transmission gear shaft 4, certain designs are made on both the braking ring 31 and the outer wall of the braking groove 32 to increase the friction generated during contact and improve the braking effect.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0054] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-point servo punching machine for part stamping, comprising: A punching machine body (1), a gearbox (2) is provided inside the punching machine body (1), and a driving gear shaft (3) and a transmission gear shaft (4) are rotatably installed inside the gearbox (2), and a driving gear (5) is fixed on the outer side of the driving gear shaft (3); It is characterized in that it further comprises: A transmission gear (6) installed on the outer side of the transmission gear shaft (4), a plurality of buffer grooves (7) are equiangularly opened on the outer side of the transmission gear shaft (4), and a docking component (8) docked with the buffer grooves (7) is installed inside the transmission gear (6); An insertion port (9) is opened inside the transmission gear shaft (4), and a plug rod (10) is inserted into the insertion port (9). A sliding rod (11) is slidably inserted at the outer end of the plug rod (10), and a mounting bracket (12) is fixed at the outer end of the sliding rod (11). A braking component (13) for braking the transmission gear shaft (4) is installed on the mounting bracket (12); The braking component (13) includes a bidirectional threaded rod (24) rotatably installed at both ends inside the mounting bracket (12). Moving seats (25) are threadedly sleeved at both ends of the bidirectional threaded rod (24), and sliding columns (26) fixed inside the mounting bracket (12) are slidably inserted into the two moving seats (25). A pushing member (27) for pushing the plug rod (10) is fixed inside the moving seat (25), and a driving member (28) for driving the bidirectional threaded rod (24) to rotate is installed at the bottom of the moving seat (25). A support rod (29) is fixed on the mounting bracket (12), and a braking member (30) is rotatably installed at the outer end of the support rod (29); The braking member (30) includes two braking rings (31) rotatably installed on the outer side of the support rod (29). Braking grooves (32) are opened at the positions of the plug rod (10) corresponding to the braking rings (31), and a pushing platform (33) is fixed inside the moving seat (25). Magnet sheets that attract each other are fixed on the adjacent sides of the pushing platform (33) and the braking ring (31).

2. The single-point servo punch for part stamping according to claim 1, wherein: The docking component (8) includes a docking block (14). An installation groove (15) is opened inside the transmission gear (6), and the docking block (14) is fixed inside the installation groove (15). An arc-shaped rod (16) slidably inserted with the docking block (14) is fixed inside the buffer groove (7), and a buffer spring (17) for pushing the docking block (14) to move outward is sleeved on the outer side of the arc-shaped rod (16). A clamping component (18) is installed inside the installation groove (15), and a clamping port (19) communicated with the insertion port (9) is opened inside the buffer groove (7).

3. A single-point servo punching machine for part stamping according to claim 2, characterized in that: The clamping member (18) includes two connecting rods (20) fixed in the mounting groove (15), and a clamping plate (21) is slidably inserted at the bottom ends of the two connecting rods (20). The cross-sectional shape of the clamping plate (21) is T-shaped, and the top of the clamping plate (21) is slidably inserted into the inner wall of the mounting groove (15), and the bottom slides through the clamping port (19). A chamfer is provided at the bottom of the clamping plate (21), and a rounded corner is provided at one end of the insertion rod (10) located in the insertion port (9). A clamping spring (42) for pushing the docking plate (21) downward is sleeved outside the connecting rod (20).

4. A single-point servo punching press for part stamping according to claim 3, characterized in that: A chamfer is provided on the side surface of the bottom end of the clamping plate (21), and a docking groove (22) is provided in the buffer groove (7), and a slope (23) is provided at the docking groove (22) and the clamping port (19).

5. A single-point servo punch for part stamping according to claim 4, characterized in that: The pushing member (27) includes a pushing rod (34) slidably inserted inside the moving seat (25). A contact plate (35) is fixed at the outer end of the pushing rod (34), and a pressing plate (36) that abuts against the moving seat (25) is fixed at the other end. An inclined opening (37) that fits with the outer end of the contact plate (35) is provided on the outer side of the insertion rod (10). A pushing spring (38) for pushing the contact plate (35) outward is sleeved outside the pushing rod (34). A tension spring (39) that is fixed to the outer wall of the insertion rod (10) and the mounting frame (12) is sleeved outside the sliding rod (11).

6. A single-point servo punching machine for part stamping according to claim 5, characterized in that: The driving member (28) includes a driving motor (40) fixed at the bottom of the mounting frame (12), and linkage gears (41) that are meshed with each other are fixed to the output end of the driving motor (40) and the outside of the bidirectional threaded rod (24).

7. A single-point servo punching machine for part stamping according to claim 6, characterized in that: A brake pad is fixed inside the brake ring (31), and the outer wall of the brake groove (32) is a matte surface.

Images