CN215032672U

CN215032672U - High-precision stamping die for automobile covering parts

Info

Publication number: CN215032672U
Application number: CN202120746080.0U
Authority: CN
Inventors: 许辉
Original assignee: Wuxi Qianbaichuan Machinery Co ltd
Current assignee: Wuxi Qianbaichuan Machinery Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-07
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a high-precision stamping die for automobile covering parts, which comprises a workbench, supporting legs, a control panel, a first electromagnetic valve, a supporting rod, a top plate, a hydraulic cylinder, a positioning column, a positioning hole, a first pneumatic quick connector, a protective sleeve, a pneumatic ejection head structure capable of discharging materials conveniently, an upper die structure capable of blowing and cleaning scraps alternately, a noise reduction annular buffer block structure and a hydraulic pump station, wherein the four corners of the lower end of the workbench are respectively connected with the supporting legs through bolts; the control panel is connected to the middle right side of the front end of the workbench through a bolt; and the first electromagnetic valves are respectively connected to the middle parts of the left end and the right end of the workbench through bolts. The utility model discloses bed die, pneumatic cavity, inlet port, annular dog, telescopic link, pneumatic ejection head, piston, sealing washer and reset spring's setting is favorable to the automobile panel jack-up that finishes with the punching press, and the operation workman of being convenient for takes out automobile panel.

Description

High-precision stamping die for automobile covering parts

Technical Field

The utility model belongs to the technical field of stamping die, especially, relate to an automobile panel stamping die of high accuracy.

Background

The automobile covering part is a general name of automobile plate-shaped parts such as an automobile engine cover plate, an automobile top cover, an automobile side wall, an automobile door and the like, and a stamping die is generally needed to stamp the automobile covering part in the production process of the automobile covering part.

At present, the stamping die is widely applied to automobile panel production enterprises.

But the existing stamping die still has the problems of poor scrap cleaning effect, inconvenience in taking the workpiece after stamping and easiness in generating noise during stamping.

Therefore, it is necessary to develop a high-precision stamping die for automobile panels.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that exists, the utility model provides an automobile panel stamping die of high accuracy, wherein the utility model discloses a can realize through following technical scheme:

a high-precision stamping die for automobile covering parts comprises a workbench, supporting legs, a control panel, a first electromagnetic valve, a supporting rod, a top plate, a hydraulic cylinder, positioning columns, positioning holes, a first pneumatic quick connector, a protective sleeve, a pneumatic ejection head structure capable of discharging materials conveniently, an upper die structure capable of blowing and cleaning scraps alternately, a noise reduction annular buffer block structure and a hydraulic pump station, wherein the four corners of the lower end of the workbench are respectively connected with the supporting legs through bolts; the control panel is connected to the middle right side of the front end of the workbench through a bolt; the two first electromagnetic valves are respectively connected to the middle parts of the left end and the right end of the workbench through bolts; one end of each of the support rods is connected with the four corners of the upper end of the workbench through bolts, and the other end of each of the support rods is connected with the four corners of the lower end of the top plate through bolts; the upper end of the hydraulic cylinder is connected with the middle part of the lower end of the top plate through a bolt; the hydraulic pump station is independently arranged on the left side of the supporting leg arranged on the right rear side; the positioning column is connected with the pneumatic ejection head structure for discharging conveniently; the protective sleeve is connected with the upper die structure capable of blowing air alternately for removing scraps; the workbench is connected with the noise reduction annular buffer block structure; the pneumatic ejection head structure for discharging materials conveniently comprises a lower die, a pneumatic cavity, an air inlet hole, an annular stop block, a telescopic rod, a pneumatic ejection head, a piston, a sealing ring and a return spring, wherein the pneumatic cavity is longitudinally formed in the left side and the right side of the upper side in the lower die respectively; the two air inlet holes are respectively and transversely arranged on the left side and the right side of the lower side in the lower die, the two air inlet holes are respectively positioned on the outer sides of the two pneumatic chambers, and the two air inlet holes are respectively communicated with the two pneumatic chambers; the two annular stop blocks are respectively connected to the upper sides of the insides of the two pneumatic chambers through bolts; one end of each of the two telescopic rods is connected with the middle part of the lower end of each of the two pneumatic ejection heads through a bolt, the other end of each of the two telescopic rods is connected with the middle part of the upper end of each of the two pistons through a bolt, and the outer walls of the two telescopic rods are respectively sleeved with an annular stop block; the two pneumatic ejection heads are respectively arranged in the two pneumatic chambers in a sliding manner, and are respectively positioned on the upper sides of the two annular stop blocks; the two pistons are respectively arranged in the two pneumatic chambers in a sliding manner, are respectively positioned at the lower sides of the two annular stop blocks, and are also respectively positioned at the upper sides of the two air inlet holes; the two sealing rings are respectively sleeved in annular grooves formed in the middle parts of the outer walls of the two pistons; the two return springs are respectively sleeved on the outer walls of the two telescopic rods, and the two return springs are respectively positioned between the two annular stop blocks and the two pistons.

Preferably, the upper die structure capable of alternately blowing and clearing scraps comprises an upper mounting seat, a second electromagnetic valve, a third electromagnetic valve, a guide hole, an upper die, a connecting hole, an air inlet hole, a second pneumatic quick connector and a dispersed blowing hole, wherein the right side of the upper end of the upper mounting seat is connected with the second electromagnetic valve through a bolt; the electromagnetic valve is connected to the left side of the upper end of the upper mounting seat through a three-bolt; the plurality of guide holes are respectively formed in four corners inside the upper mounting seat, and the second electromagnetic valve and the third electromagnetic valve are both positioned on the inner sides of the plurality of guide holes; the upper end of the upper die is connected with the middle part of the lower end of the upper mounting seat through a bolt, and the upper die is positioned on the inner sides of the guide holes; the two connecting holes are respectively arranged on the left side and the right side of the lower side of the middle part in the upper die; the two air inlet holes are respectively formed in the left side and the right side of the lower side of the middle part in the upper die, are respectively positioned on the outer sides of the two connecting holes and are respectively communicated with the two connecting holes; the two pneumatic quick connectors are respectively in threaded connection with the insides of the two air inlet holes, and the two pneumatic quick connectors are respectively arranged at the left end and the right end of the upper die; the plurality of the dispersion blow holes are respectively arranged on the left side and the right side of the lower side of the upper die from front to back in sequence, and the plurality of the dispersion blow holes are respectively communicated with the two connecting holes.

Preferably, the noise reduction annular buffer block structure comprises guide rods, a lower mounting seat, an annular buffer block, an annular noise reduction pad and a buffer spring, wherein the lower ends of the guide rods are respectively bolted at four corners of the upper end of the lower mounting seat; the annular buffer blocks are respectively sleeved on the outer walls of the guide rods; the annular noise reduction pads are respectively glued to the upper ends of the annular buffer blocks, and the annular noise reduction pads are sleeved on the outer sides of the guide rods; the buffer springs are respectively sleeved on the outer walls of the guide rods, one end of each buffer spring is connected with the lower mounting seat through a bolt, and the other end of each buffer spring is connected with the lower end of the corresponding annular buffer block through a bolt.

Preferably, two positioning columns are arranged and are respectively connected to the front side and the rear side of the middle part of the upper end of the lower die through bolts.

Preferably, the first pneumatic quick connectors are two and are respectively arranged at the lower sides of the left end and the right end of the lower die, and the first pneumatic quick connectors are respectively in threaded connection with the inner portions of the air inlet holes.

Preferably, the middle part of the upper end of the upper mounting seat is connected with a telescopic rod bolt of the hydraulic cylinder.

Preferably, the middle part of the upper end of the upper mounting seat is connected with the lower end of the protective sleeve through a bolt; the protective casing is sleeved outside the hydraulic cylinder.

Preferably, the lower sides of the front side and the rear side of the middle part of the upper die are respectively provided with a positioning hole; the two positioning holes are respectively and oppositely matched with the two positioning columns.

Preferably, the lower end of the lower mounting seat is connected to the middle part of the upper end of the workbench through a bolt.

Preferably, the lower die is connected to the middle part of the upper end of the lower mounting seat through a bolt, and the lower die is located on the inner side of the guide rods.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, bed die, pneumatic cavity, the inlet port, annular dog, the telescopic link, pneumatic ejection head, the piston, sealing washer and reset spring's setting is favorable to the auto covering jack-up that finishes with the punching press, is convenient for the operation workman take out the auto covering.

2. The utility model discloses in, last mount pad, solenoid valve two, solenoid valve three, the guide hole goes up the mould, the connecting hole goes into the gas pocket, pneumatic quick-operation joint two, the setting of dispersion hole and control panel of blowing is favorable to realizing the slope in turn and blows the iron fillings that remain on the clearance bed die, compares the vertical blow, the clear bits effect of slope blowing is better to reduce the automobile panel disability rate, put forward the stamping accuracy of automobile panel.

3. The utility model discloses in, the guide arm, lower mount pad, annular buffer block, the setting of the pad and buffer spring of making an uproar falls in the annular, the impact force that produces when being favorable to slowing down the punching press, because of the too big damage of impact force when avoiding two mould pressings, fall the impact sound that the pad produced when reducing annular buffer block and last mount pad contact through the annular simultaneously, realize falling the function of making an uproar.

4. The utility model discloses in, the setting of reference column and locating hole, when being favorable to the installation mould, be convenient for fix a position the mould, thereby avoid making the condemned problem of automobile panel because of the cooperation position that the installation is improper to lead to two moulds changes.

5. The utility model discloses in, the setting of protective casing be favorable to avoiding dust or other foreign matters to fall on the telescopic link of pneumatic cylinder to lead to the pneumatic cylinder to take place the problem of oil leak.

6. The utility model discloses in, pneumatic quick-operation joint one and pneumatic quick-operation joint two set up, convenient when being favorable to the operation workman to change the mould pull out and insert atmospheric pressure transmission pipeline, convenient to use.

7. The utility model discloses in, the setting of sealing washer, be favorable to avoiding getting into the gas of pneumatic cavity and leaking from the gap between piston and the pneumatic cavity, lead to because of the inside atmospheric pressure of pneumatic cavity is not enough, can not jack-up automobile panel's problem.

8. The utility model discloses in, control panel's setting, be favorable to the convenient each electric elements of operation workman, realize the function to the punching press of automobile panel.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the pneumatic ejection head structure for discharging conveniently.

Fig. 3 is a schematic structural view of the upper mold structure capable of blowing air alternately.

Fig. 4 is a schematic structural diagram of the noise reduction ring-shaped buffer block structure of the present invention.

In fig. 1 to 4:

1. a work table; 2. supporting legs; 3. a control panel; 4. a first electromagnetic valve; 5. a support bar; 6. a top plate; 7. a hydraulic cylinder; 8. a positioning column; 9. positioning holes; 10. a first pneumatic quick connector; 11. a protective sleeve; 12. the pneumatic ejection head structure is convenient for discharging; 121. a lower die; 122. a pneumatic chamber; 123. an air inlet; 124. an annular stop block; 125. a telescopic rod; 126. a pneumatic ejection head; 127. a piston; 128. a seal ring; 129. a return spring; 13. the upper die structure can alternately blow air and remove scraps; 131. an upper mounting seat; 132. a second electromagnetic valve; 133. a third electromagnetic valve; 134. a guide hole; 135. an upper die; 136. connecting holes; 137. air inlet holes; 138. a second pneumatic quick connector; 139. dispersing the blowholes; 14. a noise reduction ring buffer block structure; 141. a guide bar; 142. a lower mounting seat; 143. an annular buffer block; 144. an annular noise reduction pad; 145. a buffer spring; 15. and a hydraulic pump station.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a high-precision stamping die for automobile covering parts comprises a workbench 1, supporting legs 2, a control panel 3, a first solenoid valve 4, a supporting rod 5, a top plate 6, a hydraulic cylinder 7, a positioning column 8, a positioning hole 9, a first pneumatic quick connector 10, a protecting casing 11 and a hydraulic pump station 15, wherein the supporting legs 2 are respectively bolted at four corners of the lower end of the workbench 1, and the supporting legs 2 support the workbench 1; the control panel 3 is connected to the middle right side of the front end of the workbench 1 through bolts, and each electric appliance can be conveniently controlled through the control panel 3; the two first electromagnetic valves 4 are respectively bolted at the middle parts of the left end and the right end of the workbench 1; one end of each of the support rods 5 is bolted to the four corners of the upper end of the workbench 1, the other end of each of the support rods 5 is bolted to the four corners of the lower end of the top plate 6, and the support rods 5 are used for supporting the top plate 6; the upper end of the hydraulic cylinder 7 is connected with the middle part of the lower end of the top plate 6 through a bolt; the hydraulic pump station 15 is independently arranged on the left side of the supporting leg 2 arranged on the right rear side.

The high-precision stamping die for the automobile covering parts further comprises a convenient-to-discharge pneumatic ejection head structure 12, an upper die structure 13 capable of blowing air alternately and cleaning scraps and a noise reduction annular buffer block structure 14, wherein the convenient-to-discharge pneumatic ejection head structure 12 is connected with a positioning column 8; the upper die structure 13 capable of alternately blowing and cleaning scraps is connected with the protective sleeve 11; the noise reduction annular buffer block structure 14 is connected with the workbench 1, and is favorable for realizing the functions of conveniently taking materials, clearing scraps and reducing noise.

The pneumatic ejection head structure 12 for discharging materials comprises a lower die 121, a pneumatic chamber 122, an air inlet 123, an annular stop block 124, an expansion link 125, a pneumatic ejection head 126, a piston 127, a sealing ring 128 and a return spring 129, wherein the pneumatic chamber 122 is respectively and longitudinally arranged on the left side and the right side of the upper side inside the lower die 121; the two air inlet holes 123 are respectively transversely arranged on the left side and the right side of the lower side in the lower die 121, the two air inlet holes 123 are respectively positioned on the outer sides of the two pneumatic chambers 122, and the two air inlet holes 123 are respectively communicated with the two pneumatic chambers 122; the two annular stoppers 124 are respectively bolted on the inner upper sides of the two pneumatic chambers 122; one end of each of the two telescopic rods 125 is connected with a bolt at the middle part of the lower end of each of the two pneumatic ejection heads 126, the other end of each of the two telescopic rods 125 is connected with a bolt at the middle part of the upper end of each of the two pistons 127, and the outer walls of the two telescopic rods 125 are respectively sleeved with an annular stop 124; the two pneumatic ejection heads 126 are respectively arranged inside the two pneumatic chambers 122 in a sliding manner, and the pneumatic ejection heads 126 are respectively positioned on the upper sides of the two annular stoppers 124; the two pistons 127 are respectively arranged in the two pneumatic chambers 122 in a sliding manner, the two pistons 127 are respectively positioned at the lower sides of the two annular stoppers 124, and the pistons 127 are also respectively positioned at the upper sides of the two air inlet holes 123; the two sealing rings 128 are respectively sleeved in annular grooves formed in the middle parts of the outer walls of the two pistons 127; the two reset springs 129 are respectively sleeved on the outer walls of the two telescopic rods 125, the two reset springs 129 are respectively positioned between the two annular stoppers 124 and the two pistons 127, when the automobile covering part is ejected, the control panel 3 controls the first solenoid valve 4 to be started, at the moment, air flow enters the air inlet hole 123 through a pipeline, the air flow enters the pneumatic chamber 122 through the air inlet hole 123, the air pressure in the pneumatic chamber 122 gradually rises, the piston 127 moves upwards at the moment and compresses the reset springs 129, the piston 127 drives the telescopic rods 125 to move upwards, the telescopic rods 125 drive the pneumatic ejection heads 126 to eject the automobile covering part after being punched, operators can take out the automobile covering part after being punched conveniently, and the function of conveniently taking out punched workpieces is achieved.

In this embodiment, referring to fig. 3, the upper mold structure 13 capable of alternately blowing air and removing shavings includes an upper mounting seat 131, a second electromagnetic valve 132, a third electromagnetic valve 133, a guide hole 134, an upper mold 135, a connecting hole 136, an air inlet hole 137, a second pneumatic quick coupling 138 and a dispersing air blowing hole 139, wherein the second electromagnetic valve 132 is connected to the right side of the upper end of the upper mounting seat 131 through a bolt; the electromagnetic valve III 133 is connected to the left side of the upper end of the upper mounting seat 131 through a bolt; the guide holes 134 are respectively arranged at four corners inside the upper mounting seat 131, and the second electromagnetic valve 132 and the third electromagnetic valve 133 are both positioned inside the guide holes 134; the upper end of the upper die 135 is bolted to the middle part of the lower end of the upper mounting seat 131, and the upper die 135 is positioned inside the guide holes 134; the two connecting holes 136 are respectively arranged at the left side and the right side of the lower side of the middle part in the upper die 135; the two air inlet holes 137 are respectively arranged at the left side and the right side of the lower side of the middle part in the upper die 135, the two air inlet holes 137 are respectively positioned at the outer sides of the two connecting holes 136, and the air inlet holes 137 are respectively communicated with the two connecting holes 136; the two second pneumatic quick connectors 138 are respectively in threaded connection with the insides of the two air inlet holes 137, and the two second pneumatic quick connectors 138 are respectively arranged at the left end and the right end of the upper die 135; the plurality of the dispersing air blowing holes 139 are respectively arranged on the left side and the right side of the lower side of the upper die 135 from front to back in sequence, the plurality of the dispersing air blowing holes 139 are respectively communicated with the two connecting holes 136, when scrap iron or other impurities on the lower die 121 are cleaned, the control panel 3 controls the second electromagnetic valve 132 to be started, at the moment, air flow enters the air inlet hole 137 on the right side through a pipeline, then enters the connecting holes 136, and finally is blown out through the dispersing air blowing holes 139 on the right side, the scrap iron on the lower die 121 can be blown out of the lower die 121 due to the inclined air blowing of the air flow, then the control panel 3 controls the second electromagnetic valve 132 to be closed, the third electromagnetic valve 133 is started simultaneously, at the moment, the air flow enters the air inlet hole 137 on the left side through the pipeline, then enters the connecting holes 136, and is blown out through the dispersing air blowing holes 139 on the left side, and the function of alternately inclined blowing of scrap iron is realized, effectively improve and blow bits effect, the iron fillings that blow off from lower mould 121 need the operation workman to clean once more.

In this embodiment, referring to fig. 4, the noise reduction ring-shaped buffer structure 14 includes guide rods 141, a lower mounting base 142, a ring-shaped buffer block 143, a ring-shaped noise reduction pad 144 and a buffer spring 145, wherein the lower ends of the plurality of guide rods 141 are respectively bolted to four corners of the upper end of the lower mounting base 142; the plurality of annular buffer blocks 143 are respectively sleeved on the outer walls of the plurality of guide rods 141; the annular noise reduction pads 144 are respectively glued to the upper ends of the annular buffer blocks 143, and the annular noise reduction pads 144 are sleeved outside the guide rods 141; the plurality of buffer springs 145 are respectively sleeved on the outer walls of the plurality of guide rods 141, one end of each of the plurality of buffer springs 145 is in bolted connection with the lower mounting base 142, the other end of each of the plurality of buffer springs 145 is in bolted connection with the lower end of the plurality of annular buffer blocks 143, and during stamping, the hydraulic pump station 15 is controlled to start by the control panel 3, at this time, the hydraulic cylinder 7 extends, the upper mounting seat 131 drives the upper die 135 to move downwards, the guide hole 134 is sleeved on the outer side of the guide rod 141, then the upper mounting seat 131 is contacted with the annular noise reduction pad 144, and the annular noise reduction pad 144 moves downwards, the annular noise reduction pad 144 drives the annular buffer block 143 to compress the buffer spring 145, which is beneficial to reducing the impact force generated during stamping, avoiding the damage caused by overlarge impact force during the pressing of two dies, meanwhile, the impact sound generated when the annular buffer block 143 contacts the upper mounting seat 131 is reduced by the annular noise reduction pad 144, so that the noise reduction function is realized.

In this embodiment, specifically, two positioning columns 8 are provided, and are respectively bolted to the front side and the rear side of the middle part of the upper end of the lower mold 121.

In this embodiment, specifically, two first pneumatic quick connectors 10 are provided, and are respectively disposed at the lower sides of the left end and the right end of the lower mold 121, and the first pneumatic quick connectors 10 are respectively screwed inside the air inlet holes 123.

In this embodiment, specifically, the middle part of the upper end of the upper mounting seat 131 is connected with the telescopic rod bolt of the hydraulic cylinder 7.

In this embodiment, specifically, the middle part of the upper end of the upper mounting seat 131 is connected to the lower end of the protective casing 11 by a bolt; the protective casing 11 is sleeved outside the hydraulic cylinder 7.

In this embodiment, specifically, the lower sides of the front and rear sides of the middle portion of the upper mold 135 are respectively provided with positioning holes 9; the two positioning holes 9 are respectively arranged opposite to and in matching with the two positioning columns 8.

In this embodiment, specifically, the lower end of the lower mounting base 142 is bolted to the middle of the upper end of the workbench 1.

In this embodiment, specifically, the lower die 121 is bolted to the middle of the upper end of the lower mounting seat 142, and the lower die 121 is located inside the plurality of guide rods 141.

In this embodiment, specifically, the lower mold 121 and the upper mold 135 are disposed opposite to each other and in a matching manner.

In this embodiment, specifically, the plurality of guide rods 141 are provided, and are respectively arranged to face and cooperate with the plurality of guide holes 134.

In this embodiment, specifically, each of the plurality of dispersion blow holes 139 is provided to be inclined inward, and the inclination angle of the plurality of dispersion blow holes 139 is set to 44 to 46 degrees.

In this embodiment, specifically, the sealing ring 128 is a rubber sealing ring.

In this embodiment, specifically, the annular noise reduction pad 144 is an annular rubber pad.

In this embodiment, specifically, the protective casing 11 is a stainless steel casing.

In this embodiment, specifically, the air outlet of the second electromagnetic valve 132 is connected to the second pneumatic quick connector 138 on the right side.

In this embodiment, specifically, the air outlet of the third electromagnetic valve 133 is connected to the second pneumatic quick connector 138 on the left side.

In this embodiment, specifically, the air outlets of the two first electromagnetic valves 4 are respectively connected to the two first pneumatic quick connectors 10 through pipelines.

In this embodiment, specifically, the air inlets of the first electromagnetic valve 4, the second electromagnetic valve 132 and the third electromagnetic valve 133 are all connected to the air outlet pipeline of the direct-connection shunt row arranged outside.

In this embodiment, specifically, the hydraulic cylinder 7 is connected to the hydraulic pump station 15 through a pipeline.

In this embodiment, specifically, the first electromagnetic valve 4, the second electromagnetic valve 132, the third electromagnetic valve 133 and the hydraulic pump station 15 are respectively electrically connected to the control panel 3.

In this embodiment, specifically, the first electromagnetic valve 4, the second electromagnetic valve 132 and the third electromagnetic valve 133 all adopt N2V025 series two-position two-way electromagnetic directional valves.

Principle of operation

In the utility model, the air inlet of the through shunt bar arranged outside is connected with the air outlet pipeline of the air compressor arranged outside, when the automobile covering part is ejected, the control panel 3 is used for controlling the starting of the first 4 electromagnetic valve, at the moment, the air flow enters the air inlet 123 through the pipeline, the air flow enters the pneumatic chamber 122 through the air inlet 123, the air pressure in the pneumatic chamber 122 is gradually increased, the piston 127 moves upwards at the moment, the reset spring 129 is compressed, the piston 127 drives the telescopic rod 125 to move upwards, the telescopic rod 125 drives the pneumatic ejection head 126 to eject the automobile covering part after punching, the automobile covering part after punching is convenient to take out by an operator, and the function of conveniently taking out the punching workpiece is realized; when scrap iron or other impurities on the lower die 121 are cleaned, the control panel 3 controls the second electromagnetic valve 132 to be started, at the moment, air flow enters the air inlet 137 on the right side through a pipeline, then enters the connecting hole 136, and finally is blown out through the dispersed air blowing hole 139 on the right side, because the air flow is blown out obliquely, the scrap iron on the lower die 121 can be blown out of the lower die 121, then the control panel 3 controls the second electromagnetic valve 132 to be closed, and simultaneously the third electromagnetic valve 133 is started, at the moment, the air flow enters the air inlet 137 on the left side through a pipeline, then enters the connecting hole 136, and finally is blown out through the dispersed air blowing hole 139 on the left side, so that the function of alternately blowing scrap obliquely is realized, the scrap blowing effect is effectively improved, and the scrap iron blown out of the lower die 121 needs to be cleaned again by an operator; during punching press, control hydraulic power unit 15 through control panel 3 and start, pneumatic cylinder 7 stretches the jar this moment, go up mount pad 131 and drive mould 135 and begin to move down, guide hole 134 embolias the guide arm 141 outside, it falls the pad 144 contact with annular to go up mount pad 131 afterwards, and make the annular fall the pad 144 of making an uproar and move down, the annular falls the pad 144 and drives annular buffer block 143 compression buffer spring 145, the impact force that produces when being favorable to slowing down the punching press, because of the too big damage of impact force when avoiding two moulds pressfitting, reduce the impact sound that produces when annular buffer block 143 contacts with last mount pad 131 through the pad 144 of making an uproar, realize falling the function of making an uproar simultaneously.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The high-precision automobile covering part stamping die is characterized by comprising a workbench (1), supporting legs (2), a control panel (3), a first electromagnetic valve (4), a supporting rod (5), a top plate (6), a hydraulic cylinder (7), a positioning column (8), positioning holes (9), a first pneumatic quick connector (10), a protective sleeve (11), a pneumatic ejection head structure (12) for discharging conveniently, an upper die structure (13) capable of blowing alternately and cleaning scraps, a noise reduction annular buffer block structure (14) and a hydraulic pump station (15), wherein the supporting legs (2) are respectively bolted at four corners of the lower end of the workbench (1); the control panel (3) is connected to the middle right side of the front end of the workbench (1) through bolts; the two first electromagnetic valves (4) are respectively connected to the middle parts of the left end and the right end of the workbench (1) through bolts; one end of each support rod (5) is connected with the four corners of the upper end of the workbench (1) through bolts, and the other end of each support rod is connected with the four corners of the lower end of the top plate (6) through bolts; the upper end of the hydraulic cylinder (7) is connected with the middle part of the lower end of the top plate (6) through a bolt; the hydraulic pump station (15) is independently arranged on the left side of the supporting leg (2) arranged on the right rear side; the positioning column (8) is connected with a pneumatic ejection head structure (12) for discharging; the protective sleeve (11) is connected with an upper die structure (13) capable of alternately blowing air and removing scraps; the workbench (1) is connected with a noise reduction annular buffer block structure (14); the pneumatic ejection head structure (12) for discharging materials conveniently comprises a lower die (121), a pneumatic chamber (122), an air inlet (123), an annular stop block (124), a telescopic rod (125), a pneumatic ejection head (126), a piston (127), a sealing ring (128) and a return spring (129), wherein the pneumatic chamber (122) is respectively and longitudinally arranged on the left side and the right side of the upper side in the lower die (121); the two air inlet holes (123) are respectively transversely formed in the left side and the right side of the lower side in the lower die (121), the two air inlet holes (123) are respectively positioned on the outer sides of the two pneumatic chambers (122), and the two air inlet holes (123) are respectively communicated with the two pneumatic chambers (122); the two annular stop blocks (124) are respectively bolted on the upper sides of the insides of the two pneumatic chambers (122); one end of each of the two telescopic rods (125) is connected with a bolt at the middle part of the lower end of each of the two pneumatic ejection heads (126), the other end of each of the two telescopic rods (125) is connected with a bolt at the middle part of the upper end of each of the two pistons (127), and the outer walls of the two telescopic rods (125) are respectively sleeved with an annular stop block (124); the two pneumatic ejection heads (126) are respectively arranged in the two pneumatic chambers (122) in a sliding manner, and the pneumatic ejection heads (126) are respectively positioned on the upper sides of the two annular stoppers (124); the two pistons (127) are respectively arranged in the two pneumatic chambers (122) in a sliding manner, the two pistons (127) are respectively positioned on the lower sides of the two annular stoppers (124), and the pistons (127) are also respectively positioned on the upper sides of the two air inlet holes (123); the two sealing rings (128) are respectively sleeved in annular grooves formed in the middle parts of the outer walls of the two pistons (127); the two return springs (129) are respectively sleeved on the outer walls of the two telescopic rods (125), and the two return springs (129) are respectively positioned between the two annular stoppers (124) and the two pistons (127).

2. The high-precision stamping die for automobile covering parts, as recited in claim 1, characterized in that the upper die structure (13) capable of alternately blowing and cleaning scraps comprises an upper mounting seat (131), a second electromagnetic valve (132), a third electromagnetic valve (133), a guide hole (134), an upper die (135), a connecting hole (136), an air inlet hole (137), a second pneumatic quick coupling (138) and a dispersing air blowing hole (139), wherein the second electromagnetic valve (132) is bolted to the right side of the upper end of the upper mounting seat (131); the electromagnetic valve III (133) is connected to the left side of the upper end of the upper mounting seat (131) through a bolt; the guide holes (134) are respectively arranged at four corners inside the upper mounting seat (131), and the second electromagnetic valve (132) and the third electromagnetic valve (133) are positioned inside the guide holes (134); the upper end of the upper die (135) is connected with the middle part of the lower end of the upper mounting seat (131) through a bolt, and the upper die (135) is positioned inside the guide holes (134); the two connecting holes (136) are respectively arranged on the left side and the right side of the lower side of the middle part in the upper die (135); the two air inlet holes (137) are respectively formed in the left side and the right side of the lower side of the middle part in the upper die (135), the two air inlet holes (137) are respectively positioned on the outer sides of the two connecting holes (136), and the air inlet holes (137) are respectively communicated with the two connecting holes (136); the two second pneumatic quick connectors (138) are respectively in threaded connection with the insides of the two air inlet holes (137), and the two second pneumatic quick connectors (138) are respectively arranged at the left end and the right end of the upper die (135); the plurality of the dispersed air blowing holes (139) are respectively arranged on the left side and the right side of the lower side of the upper die (135) from front to back in sequence, and the plurality of the dispersed air blowing holes (139) are respectively communicated with the two connecting holes (136).

3. The high-precision automobile panel stamping die as claimed in claim 1, wherein the noise reduction ring-shaped buffer block structure (14) comprises guide rods (141), a lower mounting seat (142), a ring-shaped buffer block (143), a ring-shaped noise reduction pad (144) and a buffer spring (145), wherein the lower ends of the plurality of guide rods (141) are respectively bolted at four corners of the upper end of the lower mounting seat (142); the annular buffer blocks (143) are respectively sleeved on the outer walls of the guide rods (141); the annular noise reduction pads (144) are respectively glued to the upper ends of the annular buffer blocks (143), and the annular noise reduction pads (144) are sleeved outside the guide rods (141); the buffer springs (145) are respectively sleeved on the outer walls of the guide rods (141), one ends of the buffer springs (145) are respectively connected with the lower mounting base (142) through bolts, and the other ends of the buffer springs are respectively connected with the lower ends of the annular buffer blocks (143) through bolts.

4. The high-precision automobile panel stamping die as claimed in claim 1, wherein two positioning columns (8) are arranged and are respectively bolted on the front side and the rear side of the middle part of the upper end of the lower die (121).

5. The high-precision automobile panel stamping die as claimed in claim 1, wherein two first pneumatic quick connectors (10) are provided, and are respectively arranged at the lower sides of the left and right ends of the lower die (121), and the first pneumatic quick connectors (10) are respectively screwed inside the air inlet holes (123).

6. The high-precision automobile panel stamping die as claimed in claim 2, wherein the middle part of the upper end of the upper mounting seat (131) is connected with a telescopic rod bolt of the hydraulic cylinder (7).

7. The high-precision automobile panel stamping die as claimed in claim 2, wherein the middle part of the upper end of the upper mounting seat (131) is connected with the lower end of the protective sleeve (11) through a bolt; the protective casing (11) is sleeved outside the hydraulic cylinder (7).

8. The high-precision automobile panel stamping die as claimed in claim 2, wherein the lower sides of the front and rear sides of the middle part of the upper die (135) are respectively provided with a positioning hole (9); the two positioning holes (9) are respectively arranged opposite to and in fit with the two positioning columns (8).