CN210590680U - Cam feeding type punch press - Google Patents

Abstract

The utility model relates to a punch press discloses a cam feed formula punch press, its technical scheme main points are including workstation and movable block, be connected with U type support frame on the workstation, just be equipped with first pivot in the U type support frame, the top of U type support frame is equipped with driving motor, be equipped with punching press subassembly in the U type support frame, two inside walls of the vertical direction of U type support frame are the vertical guide rail that slides that is equipped with respectively, punching press subassembly slides and connects in the guide rail that slides, the cover is equipped with lifting cam in the first pivot, lifting cam contradicts in punching press subassembly, punching press subassembly ground both sides wall difference fixedly connected with sliding block, the both sides wall of U type support frame is vertical respectively to be opened has reciprocal through-hole, sliding block passes and vertical slides in reciprocal through-hole, be. The utility model discloses make punching press subassembly and first pivot break away from, alleviateed driving motor's load for driving motor can drive punching press subassembly work with faster rotational speed, thereby has reached the effect that improves machining efficiency.

Description

Cam feeding type punch press

Technical Field

The utility model relates to a punch press, in particular to cam feed formula punch press.

Background

The punch press is a stamping type press, is mainly applied to the processing of punching, forming, deep drawing, riveting and the like of plates, and has the working principle that circular motion is converted into linear motion to enable a punch to stamp the plates, so that the plates are processed.

At present, chinese patent with publication number CN109530526A discloses a novel punch press, which comprises a frame, a locking bolt, a fixing rod, a fixing bolt, a slider, a supporting rod, an extension spring, a baffle, a positioning plate, a workpiece, and a punch pin, wherein the fixing rod is fixed on the side surface of the frame through the locking bolt, the slider is arranged in a wedge-shaped groove of the fixing rod, the supporting rod is welded at the lower end of the slider, and the positioning plate is hinged at the lower end of the slider and is connected with the slider through the extension spring. The slider includes slider body, first scale, second scale, spring tie point, locating plate tie point, baffle tie point, has first scale and second scale on the slider body respectively, and slider body lower extreme processing has spring tie point and locating plate tie point.

This kind of novel punch press is at the during operation, arranges the work piece in the workstation, according to the first scale regulating slide locating plate to suitable position of slider, puts down the locating plate, and work piece one end top is on the locating plate, and the first spot facing work of work piece is accomplished in punch press work, packs up the locating plate, according to the second scale regulating slide baffle of slider to suitable position, and work piece one end top is on baffle 8, and the processing in the follow-up hole of work piece is accomplished in punch press work.

According to the application, as can be seen from the attached drawings of the specification, a moving block is connected above the punch pin, a transition block is rotatably connected above the moving block, a rocker arm is rotatably connected above the transition block, the rocker arm is coaxially connected with a flywheel, and the motor and the flywheel are in transmission fit through a belt wheel. When a workpiece is punched, the motor drives the flywheel to rotate, the flywheel drives the rocker arm to rotate, and the transition block is driven to move up and down in the rotating process of the rocker arm, so that the moving block drives the punch pin to punch. Then, because the rocker arm, the transition block, the moving block and the punching needle are connected, the motor needs to overcome the gravity of the rocker arm, the transition block, the moving block and the punching needle at the same time to do work, so that the reciprocating speed of the punching needle is reduced, and the efficiency of plate punching processing is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cam feed formula punch press has the advantage that improves machining efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a cam feeding type punch press comprises a workbench, wherein the upper surface of the workbench is connected with a U-shaped support frame with a downward opening, a first rotating shaft transversely penetrates through the top of the U-shaped support frame and is positioned in the U-shaped support frame, the first rotating shaft is rotatably connected to the U-shaped support frame, a driving motor for driving the first rotating shaft to rotate is arranged on the U-shaped support frame, a stamping assembly is arranged below the first rotating shaft and is positioned in the U-shaped support frame, two inner side walls of the U-shaped support frame in the vertical direction are respectively and vertically provided with a sliding guide rail, the stamping assembly is slidably connected to the sliding guide rails, a lifting cam which is abutted against the stamping assembly is sleeved on the first rotating shaft, two side walls of the stamping assembly in the vertical direction are respectively and fixedly connected with a sliding block, two side walls of the U-shaped support frame are respectively and vertically provided with, the utility model discloses a quick-witted slide block structure, including workstation, rebound subassembly, support cover, slip piece, support cover, return spring, connecting rod, support cover and return spring, the below that just is located the slide block on the workstation is equipped with the subassembly of kick-backing, the subassembly of kick-backing includes that fixed connection supports the cover on the workstation and slides the connecting rod of connection in supporting the cover, the top of connecting rod is worn out and is supported the cover and connect in the slide block, it.

Through adopting above-mentioned technical scheme, when carrying out stamping work to the work piece, the work piece is placed on the workstation, and is located the below of punching press subassembly. Then start driving motor, driving motor drives first pivot and rotates, and first pivot drives the lift cam and rotates, and the lift cam is contradicted in the punching press subassembly to with the cooperation of resilience subassembly, make the punching press subassembly produce the motion of reciprocal lift, the in-process of motion realizes the punching press to the work piece. The utility model discloses in, the lifting cam is contradicted in the punching press subassembly, and not with there is the relation of connection between the punching press subassembly, therefore driving motor only needs the first pivot of drive, has reduced driving motor's load for driving motor can drive first pivot with higher rotational speed and rotate, thereby has improved the lifting frequency of punching press subassembly, has the advantage that improves work piece machining efficiency.

Furthermore, the stamping assembly comprises a moving block and a second rotating shaft connected above the moving block, the second rotating shaft is located below the first rotating shaft, a butting ring which is butted against the lifting cam is sleeved on the second rotating shaft, and two sides of the moving block in the vertical direction are connected to the sliding guide rail in a sliding mode.

Through adopting above-mentioned technical scheme, the butt ring is used for bearing the offset pressure that comes from the lift cam, can reduce the area of contact between lift cam and the punching press subassembly to reach the effect that reduces frictional force. Meanwhile, the abutting ring bears the abutting force from the lifting cam, so that the local pressure on the second rotating shaft is reduced, the possibility of bending of the second rotating shaft is reduced, and the service life of the second rotating shaft is prolonged.

Further, an inner bushing is sleeved on the first rotating shaft, the lifting cam is fixedly sleeved on the inner bushing, and the inner bushing is connected to the first rotating shaft through a bolt; the second rotating shaft is sleeved with a connecting inner sleeve, the abutting ring is connected outside the connecting inner sleeve in a key mode, and the connecting inner sleeve is connected to the second rotating shaft through a bolt.

Through adopting above-mentioned technical scheme, when lift cam and butt ring produced the damage, the staff can maintain or change both through dismantling the neck bush and connecting the endotheca, improve the utility model discloses the convenience of maintenance.

Furthermore, the top of connecting rod twists has the external screw thread section, the sliding block passes and threaded connection in the external screw thread section of connecting rod, threaded hole is opened respectively at the both ends of movable block top surface, adjusting bolt is worn to be equipped with respectively at the both ends of second pivot, adjusting bolt threaded connection is in the threaded hole, adjusting bolt is located the body threaded connection of second pivot and movable block and has stop nut, the second pivot is pressed from both sides tightly between adjusting bolt's nut and stop nut.

Through adopting above-mentioned technical scheme, the staff can adjust the stroke of punching press subassembly according to the required punching press power of work piece. During adjustment, the connecting rod is rotated, and the threaded connection matching between the connecting rod and the sliding block promotes the stamping assembly 5 to generate ascending or descending movement, so that the distance between the stamping assembly and a workpiece is adjusted, and the stroke of the stamping assembly is adjusted. After the stroke adjustment of the punching group is completed, the abutting ring is bound to be separated from the lifting cam. At this time, the adjusting bolt is rotated, so that the distance between the nut of the adjusting bolt and the moving block is changed until the abutting ring abuts against the lifting cam again. And rotating the adjusting bolt and simultaneously rotating the limit nut to enable the second rotating shaft to be clamped between the nut of the adjusting bolt and the limit nut.

Furthermore, the two ends of the second rotating shaft are respectively and fixedly connected with auxiliary sliding blocks, and the auxiliary sliding blocks are connected to the sliding guide rail in a sliding mode.

Through adopting above-mentioned technical scheme, supplementary slider has improved the stability of second pivot lift in-process, cooperates jointly with the movable block, has effectively improved punching press subassembly ground stability in punching press process.

Further, the sliding guide rails are arranged in two rows.

Through adopting above-mentioned technical scheme, two glide guide can reduce the punching press subassembly and produce the possibility of orbit skew phenomenon at the lift in-process, have the advantage that bears punching press subassembly high frequency lift to make punching press subassembly can be with faster speed punching press work piece.

Furthermore, the lifting cam is provided with two along the axial direction of the first rotating shaft, and the butting ring is provided with two along the axial direction of the second rotating shaft.

Through adopting above-mentioned technical scheme, two lift cams and butt ring cooperate jointly, form the structure of two point supports, thereby improved the utility model discloses stability at the during operation.

Further, the abutting ring is a bearing.

Through adopting above-mentioned technical scheme, at the pivoted in-process of lift cam, the friction between lift cam and the butt ring is rolling friction, has the advantage that reduces friction, reduces driving motor power waste.

To sum up, the utility model discloses following beneficial effect has:

1. the stamping assembly is lifted through the collision of the lifting cam, so that the driving motor only needs to drive the first rotating shaft to rotate, the load of the driving motor is reduced, the driving motor can drive the first rotating shaft to rotate at a higher rotating speed, the lifting frequency of the stamping assembly is improved, and the advantage of improving the workpiece processing efficiency is achieved;

2. adopt two orbital structures that slide, can give the comparatively stable support and the direction of punching press subassembly, reduced the lift of punching press subassembly and produced the possibility of skew to make the punching press subassembly can bear the lift of higher frequency.

Drawings

FIG. 1 is a schematic structural diagram for embodying the present invention;

figure 2 is an exploded view for embodying a rebound assembly.

In the figure, 1, a workbench; 2. a U-shaped support frame; 21. angle iron; 22. a sliding guide rail; 23. a reciprocating through hole; 3. a first rotating shaft; 31. a driven pulley; 32. a lifting cam; 33. an inner liner; 4. a drive motor; 41. a driving pulley; 42. a synchronous belt; 5. a stamping assembly; 51. a sliding block; 52. a moving block; 53. a second rotating shaft; 54. an auxiliary slide block; 55. a butting ring; 56. connecting the inner sleeve; 6. a rebound assembly; 61. a support sleeve; 62. a connecting rod; 621. an external threaded section; 63. a return pressure spring; 7. adjusting the bolt; 71. and a limiting nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a cam feed type punch press, referring to fig. 1, comprises a workbench 1, wherein a U-shaped support frame 2 with a downward opening is arranged on the upper surface of the workbench 1. Be equipped with angle bar 21 between two lateral walls of 2 vertical directions of U type support frame and the workstation 1, the spiro union has locking bolt between angle bar 21 and the workstation 1, between angle bar 21 and the U type support frame 2, through locking of locking bolt, realizes the fixed of U type support frame 2 on workstation 1.

Referring to fig. 1, a first rotating shaft 3 transversely penetrates through the top of the U-shaped support frame 2, and two ends of the first rotating shaft 3 are rotatably connected to the U-shaped support frame 2 through bearings. The top of the U-shaped support frame 2 is connected with a driving motor 4 through a bolt, and the driving motor 4 adopts a servo motor. The fixed cover of output shaft of driving motor 4 is equipped with driving pulley 41, and the one end of first pivot 3 is worn out U type support frame 2 and fixed cover is equipped with driven pulley 31, is connected with synchronous belt 42 between driving pulley 41 and the driven pulley 31. The first rotating shaft 3 is in transmission fit with the driving motor 4 through a belt.

Referring to fig. 1, a punching assembly 5 is arranged below the first rotating shaft 3 in the U-shaped supporting frame 2, and a punching pin is connected to the lower surface of the punching assembly 5. Two inside walls of 2 vertical directions of U type support frame are vertical fixedly connected with guide rail 22 that slides respectively, and guide rail 22 that slides is provided with two side by side, and the both sides of the 5 vertical directions of punching press subassembly slide and connect in guide rail 22 that slides. The two sliding guide rails 22 can provide more stable support and guidance for the punching assembly 5, so that the sliding of the punching assembly 5 is smoother, and in addition, more reaction force from the workpiece can be counteracted during punching, so that the possibility of track deviation generated by the punching assembly 5 in the punching process is reduced.

Referring to fig. 1, two lifting cams 32 are sleeved on the first rotating shaft 3, the two lifting cams 32 are arranged in the length direction of pressing the first rotating shaft 3, and the lifting cams 32 abut against the pressing assembly 5. In order to facilitate the disassembly of the lifting cam 32 when the lifting cam 32 is damaged in the later period, an inner bushing 33 is sleeved on the first rotating shaft 3, the inner bushing 33 is connected to the first rotating shaft 3 through a countersunk bolt, and the lifting cam 32 is fixedly sleeved on the inner bushing 33.

Referring to fig. 1, when the driving motor 4 drives the first rotating shaft 3 to rotate, the lifting cam 32 rotates along with the first rotating shaft, the rotating track of the lifting cam 32 causes the punching assembly 5 to generate a descending motion, and the punching assembly 5 drives the punching pin to punch a workpiece downwards in the descending process.

Referring to fig. 1, two side walls of the stamping assembly 5 in the vertical direction are respectively and fixedly connected with a sliding block 51, two side walls of the U-shaped support frame 2 are respectively and vertically provided with a reciprocating through hole 23, and the sliding block 51 penetrates through and vertically slides in the reciprocating through hole 23. Rebound assembly 6 is arranged on the workbench 1 and below the sliding block 51, and the rebound assembly 6 comprises a support sleeve 61 and a connecting rod 62. The support sleeve 61 is fixedly connected to the table 1, a return pressure spring 63 (see fig. 2) is provided in the support sleeve 61, and the connecting rod 62 is slidably connected to the support sleeve 61. The bottom end of the connecting rod 62 is abutted against the return pressure spring 63, and the top end is connected to the sliding block 51.

Referring to fig. 1, after the lifting cam 32 moves downward against the punching assembly 5, the sliding block 51 moves downward, so that the connecting rod 62 presses the return compression spring 63 (see fig. 2) downward, and the return compression spring 63 has a restoring force. The lifting cam 32 then continues to rotate, at which time the resilient force of the return compression spring 63 is released, causing the punch assembly 5 to move upwardly. The return compression spring 63 cooperates with the lifting cam 32 to effect repeated raising and lowering movements of the punch assembly 5.

Referring to fig. 1, the press assembly 5 includes a moving block 52 and a second rotating shaft 53 connected above the moving block 52, and both sides of the moving block 52 in the vertical direction are slidably connected to the slide rail 22. The second rotating shaft 53 is located below the first rotating shaft 3, two ends of the second rotating shaft 53 are respectively and fixedly connected with an auxiliary sliding block 54, and the auxiliary sliding block 54 is connected to the sliding guide 22 in a sliding manner. The second rotating shaft 53 is sleeved with two abutting rings 55 abutting against the lifting cam 32, and the two abutting rings 55 are bearings arranged along the length direction of the second rotating shaft 53. In order to facilitate the detachment of the abutting ring 55 when the abutting ring 55 is damaged in the later stage, a connecting inner sleeve 56 is sleeved on the second rotating shaft 53, the connecting inner sleeve 56 is connected to the first rotating shaft 3 through a countersunk bolt, and the abutting ring 55 is fixedly sleeved on the inner bushing 33 through a key connection mode.

Referring to fig. 1, when the pressing unit 5 is lifted, the pressing force of the lifting cam 32 is applied to the contact ring 55, and the contact ring 55 is made of a bearing, so that the contact with the lifting cam 32 has a small friction force, generates a small amount of heat, and can withstand a higher rotation speed of the lifting cam 32. Meanwhile, the lifting cam 32 does not directly contact the second rotating shaft 53, so that the possibility of bending phenomenon caused by overlarge stress on the second rotating shaft 53 is reduced, and the service life of the stamping component 5 is prolonged. The punching component 5 is matched with the lifting cam 32 through the abutting ring 55, and the effect of quickly processing the workpiece under the condition of high rotating speed of the lifting cam 32 is achieved.

Referring to fig. 1, the top of the connecting rod 62 passes through the supporting sleeve 61, an external thread section 621 is twisted on the rod body passing through the supporting sleeve 61, and the sliding block 51 passes through and is screwed on the external thread section 621. Threaded holes are formed in two ends of the top surface of the moving block 52 respectively, adjusting bolts 7 penetrate through rod bodies at two ends of the second rotating shaft 53 respectively, and after the adjusting bolts 7 penetrate through the second rotating shaft 53, the adjusting bolts are in threaded connection with the threaded holes. The adjusting bolt 7 is provided with a limit nut 71 in threaded connection with the second rotating shaft 53 and the rod body of the moving block 52, and the second rotating shaft 53 is clamped between the nut of the adjusting bolt 7 and the limit nut 71.

Referring to fig. 1, during operation, a worker can adjust the stroke of the punch assembly 5 according to the desired punch force of the workpiece. During adjustment, the connecting rod 62 is rotated, and the threaded fit between the connecting rod 62 and the sliding block 51 causes the punching assembly 5 to move up or down, so that the distance between the punching assembly 5 and the workpiece is adjusted, and the stroke of the punching assembly 5 is adjusted.

Referring to fig. 1, after the stroke adjustment of the punch assembly 5 is completed, the abutment ring 55 tends to disengage from the lift cam 32. At this time, the adjusting bolt 7 is rotated so that the distance between the nut of the adjusting bolt 7 and the moving block 52 is changed until the abutting ring 55 again abuts against the lifter cam 32. While the adjusting bolt 7 is rotated, the limit nut 71 is rotated, so that the second rotation shaft 53 is stably fixed.

The specific implementation process comprises the following steps: when processing a workpiece, a worker places the workpiece on the table 1 and below the punch pin. At this time, the driving motor 4 is started, the driving motor 4 drives the first rotating shaft 3 to rotate, and the first rotating shaft 3 drives the lifting cam 32 to rotate. In the process of rotating the lifting cam 32, the stamping component 5 is matched with the rebound component 6 to perform reciprocating lifting motion along the track of the lifting cam 32, and the stamping component 5 drives the stamping pin to ascend or descend in the lifting process so as to stamp the workpiece.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (8)

1. A cam feed formula punch press, includes workstation (1), its characterized in that: the upper surface of the workbench (1) is connected with a U-shaped support frame (2) with a downward opening, a first rotating shaft (3) transversely penetrates through the U-shaped support frame (2) and is positioned at the top of the U-shaped support frame, the first rotating shaft (3) is rotatably connected to the U-shaped support frame (2), a driving motor (4) for driving the first rotating shaft (3) to rotate is arranged on the U-shaped support frame (2), a stamping assembly (5) is arranged below the first rotating shaft (3) in the U-shaped support frame (2), two inner side walls in the vertical direction of the U-shaped support frame (2) are respectively and vertically provided with a sliding guide rail (22), the stamping assembly (5) is slidably connected to the sliding guide rail (22), a lifting cam (32) which is abutted to the stamping assembly (5) is sleeved on the first rotating shaft (3), and two side walls in the vertical direction of the stamping assembly (5) are, the utility model discloses a quick-witted support structure, including U type support frame (2), the both sides wall of U type support frame (2) is vertical respectively to be opened there is reciprocal through-hole (23), sliding block (51) pass and vertical slip in reciprocal through-hole (23), the below that just is located sliding block (51) on workstation (1) is equipped with resilience subassembly (6), resilience subassembly (6) include support cover (61) and the connection of sliding of fixed connection on workstation (1) and support connecting rod (62) in cover (61), the top of connecting rod (62) is worn out and is supported cover (61) and be connected in sliding block (51), be equipped with return pressure spring (63) in supporting cover (61), connecting rod (62) are contradicted on return pressure spring (63).

2. A cam-fed punch press as claimed in claim 1, wherein: the stamping assembly (5) comprises a moving block (52) and a second rotating shaft (53) connected above the moving block (52), the second rotating shaft (53) is located below the first rotating shaft (3), an abutting ring (55) abutting against the lifting cam (32) is sleeved on the second rotating shaft (53), and two sides of the moving block (52) in the vertical direction are connected to the sliding guide rail (22) in a sliding mode.

3. A cam-fed punch press as claimed in claim 2, wherein: an inner bushing (33) is sleeved on the first rotating shaft (3), the lifting cam (32) is fixedly sleeved on the inner bushing (33), and the inner bushing (33) is connected to the first rotating shaft (3) through a bolt; the second rotating shaft (53) is sleeved with a connecting inner sleeve (56), the butting ring (55) is connected with the connecting inner sleeve (56) in a key mode, and the connecting inner sleeve (56) is connected to the second rotating shaft (53) through a bolt.

4. A cam-fed punch press as claimed in claim 2, wherein: the top hank of connecting rod (62) has external screw thread section (621), sliding block (51) pass and threaded connection in external screw thread section (621) of connecting rod (62), threaded hole is opened respectively at the both ends of movable block (52) top surface, adjusting bolt (7) are worn to be equipped with respectively at the both ends of second pivot (53), adjusting bolt (7) threaded connection is in the threaded hole, threaded connection has stop nut (71) on adjusting bolt (7) are located the pole body of second pivot (53) and movable block (52), second pivot (53) are pressed from both sides tightly between the nut of adjusting bolt (7) and stop nut (71).

5. A cam-fed punch press as claimed in claim 2, wherein: and two ends of the second rotating shaft (53) are respectively and fixedly connected with an auxiliary sliding block (54), and the auxiliary sliding blocks (54) are connected to the sliding guide rail (22) in a sliding manner.

6. A cam-fed punch press as claimed in claim 1, wherein: the sliding guide rails (22) are arranged in two rows.

7. A cam-fed punch press as claimed in claim 2, wherein: the lifting cam (32) is provided with two along the axial direction of the first rotating shaft (3), and the abutting ring (55) is provided with two along the axial direction of the second rotating shaft (53).

8. A cam-fed punch press as claimed in claim 2, wherein: the abutting ring (55) is a bearing.

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