CN210623266U

CN210623266U - Impact cylinder

Info

Publication number: CN210623266U
Application number: CN201921550514.9U
Authority: CN
Inventors: 杨文凯
Original assignee: Shanghai Wende Automation Technology Co Ltd
Current assignee: Shanghai Wende Automation Technology Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-26
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a cylinder discloses an impact cylinder, including cylinder body and the jump bit of sliding connection in the cylinder body, the one end of jump bit can be dismantled and is connected with the embossed seal, the inside one end that is close to the embossed seal of cylinder body, and the week side of jump bit is overlapped in proper order and is equipped with bolster, buffering elastic component, the elastic component that resets, and the disappointing hole has been seted up to the lateral wall of cylinder body. When the impact hammer works, impact gas impacts the end face, far away from the steel seal, of the impact rod, the buffering elastic piece and the resetting elastic piece are both in a compressed state, and due to the fact that impact is instantaneous, the resetting elastic piece releases elastic potential energy to enable the impact rod to return to the original position, and the steel seal is stamped with a mark with depth on the metal surface with certain metal hardness. The utility model discloses have and fall the effect of making an uproar to the impact cylinder.

Description

Impact cylinder

Technical Field

The utility model relates to a cylinder especially relates to an impact cylinder.

Background

The impact cylinder utilizes impact gas to impact rapidly in a sealed space to generate explosive force to push the impact rod to move in the cylinder body, a steel seal at the end part of the impact rod is made to form a mark with depth on a metal with hardness, and the impact gas is provided by an external gas source device.

For example, the impact cylinder disclosed in chinese patent with patent publication No. CN203868034U includes a cylinder barrel, a rear end cover, and an impact assembly, where the impact assembly includes an impact block and an impact rod, and the front end of the impact rod axially penetrates out of the cylinder barrel; the rear end cover is fixedly provided with a magnet capable of attracting the impact block magnetically, the rear end cover is further provided with an airflow channel communicated with the inner cavity of the cylinder barrel, the rear part of the impact block is fixedly provided with a sealing element, and the impact cylinder further comprises an air source device used for filling compressed air into the airflow channel. Compressed gas is filled into the airflow channel through the gas source device, and when the gas pressure in the airflow channel reaches a certain value, the impact assembly overcomes the magnetic force of the magnet and impacts forwards.

The above prior art solutions have the following drawbacks: when the impact rod is pushed to move forwards by gas, the impact force of the impact gas is large, and when the force of the impact gas is larger than the attractive force of the magnet, the impact rod moves by inertia, so that the impact block and the inner wall of the cylinder body are collided rapidly, huge noise is generated, and discomfort is brought to operators.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an impact cylinder with reduce impulsive noise, which is not enough for the prior art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an impact cylinder comprises a cylinder body and an impact rod connected in the cylinder body in a sliding manner, wherein an air inlet is formed in the cylinder body, the end part, extending out of the cylinder body, of the impact rod is detachably connected with a steel seal, a buffer part is arranged in the cylinder body and sleeved on the impact rod, a buffer elastic part is sleeved on the impact rod, one end of the buffer elastic part is tightly abutted with the buffer part, the buffer part is tightly abutted in the cylinder body, the other end of the buffer elastic part is abutted with the inner wall of the cylinder body, one end, located in the cylinder body, of the impact rod is fixedly connected with a guide ring protruding out of the surface of the impact rod, and a reset elastic part is tightly abutted between the guide ring and the buffer part;

a guide groove is formed in the side wall of the impact rod and extends along the axial lead direction of the impact rod, a guide piece is detachably connected to the cylinder body, and one end of the guide piece extends into the guide groove to limit the posture of the impact rod;

the seal groove has been seted up to the week lateral wall of guide ring, the embedding has the sealing member in the seal groove, keep away from in the cylinder body the one end card of embossed seal has buffer washer, the lateral wall of cylinder body is provided with and runs through the hole of disappointing in the cylinder body, the guide ring butt buffer washer.

By adopting the technical scheme, in the using process of the impact cylinder, the needed steel seal is connected to the end part of the impact rod, the impact gas acts on one end surface of the impact rod far away from the steel seal to push the impact rod to move quickly along the axial direction, the guide ring is instantly compressed after being abutted against the elastic buffer piece, the elastic reset piece is also compressed, the buffer piece plays a role of buffering impact of the impact rod again, and noise generated by direct collision of the guide ring and the inner wall of the cylinder body is reduced; the impact rod drives the steel seal to quickly impact on a metal surface with certain hardness by utilizing inertia, and a sunken seal is printed; at the moment, due to the existence of the reset elastic piece and the release of elastic potential energy, the buffer elastic piece enables the buffer elastic piece to reset due to the existence of the limit groove, the position of the buffer elastic piece moving in the groove is limited, the reset elastic piece releases the elastic potential energy to push the impact rod to move towards the direction far away from the impact direction, and finally the impact rod is restored to the original position; the guide piece moves along the guide groove, so that the rotation of the impact rod is limited;

in the moving process of the impact rod, the guide piece moves along the guide groove, so that the posture of the impact rod is limited, and the angle of a steel seal is ensured.

The sealing element enables the guide ring to be connected with the inner wall of the cylinder body in a sealing mode, the sealing performance of the communication between the end portion of the cylinder body and an external air source device is improved, and therefore the impact effect is improved.

The utility model discloses further set up to: the side wall of the cylinder body is provided with a fixing hole corresponding to the position of the guide groove, the guide piece is embedded into the fixing hole and abutted against the guide groove, the side wall of the guide piece is provided with a clamping area, the cylinder body is provided with a clamping hole corresponding to the position of the clamping area, a clamping piece is arranged in the clamping hole in a matched mode, and the end portion of the clamping piece extending into the clamping hole is abutted against the clamping area to clamp the guide piece.

Through adopting above-mentioned technical scheme, the guide sets up to detachable mode, because the process of assaulting is rapid, there is wearing and tearing in the guide, uses the guide that needs to be changed for a period of time, comes the better rotation that prevents the impact beam.

The utility model discloses further set up to: the clamping piece is in threaded fit with the clamping hole, and the impact direction of the impact rod is opposite to the screwing direction of the clamping piece into the clamping hole.

By adopting the technical scheme, the reason that the threads are not arranged on the side wall of the guide part, and the guide part is fixed by the clamping part is that in the process of impact, because the guide part is subjected to the acting force of the guide groove on the guide part along the axial lead direction of the guide part, if the threads are arranged, the direction of the force acts on the side wall of the thread protrusion, because the acting force of the impact force is very large, the threads are easily ground flat after a long time, the guide part falls off, and the impact effect is influenced; the clamping piece is arranged, the force of the impact force acting on the guide piece acts on the clamping piece, the direction of the force is perpendicular to the direction of the protrusion of the thread, so that the friction force on the thread is reduced relative to the acting force applied from the side wall, and the service life of the guide piece is prolonged. The thread is favorable for dispersing the acting force of the impact force on the clamping piece, and the looseness of the clamping piece is reduced.

The utility model discloses further set up to: the stamping device is characterized in that one end of the impact rod is provided with an insertion groove, the side wall of the steel seal is provided with a stopping area, the side wall of the impact rod is provided with a bolt groove which is communicated with the insertion groove and aligned with the stopping area, a stopping pin is inserted in the bolt groove, and one end of the stopping pin extends into the stopping area to clamp the steel seal.

Through adopting above-mentioned technical scheme, the backstop district cooperation backstop round pin of lateral wall can prevent the rotation of embossed seal in the inserting groove, extracts the backstop round pin and makes the embossed seal take out the inserting groove, changes new embossed seal, has improved the suitability of strikeing the cylinder.

The utility model discloses further set up to: the buffering elastic piece is a rectangular spring.

Through adopting above-mentioned technical scheme, compare in circular spring, the contact surface becomes the face contact by line contact, and rectangular spring has increased the area of contact of buffering elastic component with the guide ring butt face for at the in-process of atress, reduced the pressure of butt face, make the more stable butt guide ring of spring moreover.

The utility model discloses further set up to: the sealing element is embedded in the sealing groove, the section of the sealing element is in a flaring shape, and the direction of the flaring shape is opposite to the air inlet direction of the air inlet.

By adopting the technical scheme, after the external air source device is connected, the sealing performance between the guide ring and the cylinder body is improved, and the gas back to the flaring-shaped side of the sealing element acts on the side wall of the sealing ring in the process of being rapidly compressed, so that the side wall tends to shrink; the impact gas on the flaring side of the sealing element acts on the inner surface of the sealing element, so that the inner wall of the sealing element tends to expand.

The utility model discloses further set up to: the air leakage holes are located at one end, close to the steel seal, of the cylinder body, are multiple and are distributed in an axisymmetric mode by taking the axial lead of the cylinder body as a base line.

Through adopting above-mentioned technical scheme, at the in-process of punching press, original gas in the cylinder body needs the release, lets gaseous volume can not produce the sudden change for the impact bar can steadily strike in the cylinder body, and the hole of disappointing helps strikeing gaseous discharge moreover.

The utility model discloses further set up to: the cylinder body comprises an impact upper cover, an impact pipe and an impact lower cover; the impact upper cover is fixedly connected to one end of the impact pipe, and the impact lower cover is fixedly connected to the other end of the impact rod.

Through adopting above-mentioned technical scheme, the cylinder body sets up for the equipment, makes things convenient for the installation of inside spare part.

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

1. the impact gas acts on the impact rod, the impact rod rapidly slides in the cylinder body by utilizing inertia to drive the steel seal at the end part of the impact rod to make a sunken mark on the metal surface with certain metal hardness, and the impact rod is not easily abraded; the inner part of the cylinder body is provided with a buffering elastic part and a buffering part which are used for buffering the acting force of the guide ring on the cylinder body, so that the noise generated by the collision of the guide ring and the inner wall of the cylinder body is reduced; due to the existence of the reset elastic piece, the reset elastic piece releases elastic potential energy to facilitate the reset of the impact rod; meanwhile, in order to achieve a better marking effect, the impact rod is guided, and the guide piece is arranged in a replaceable mode, so that the guide piece can be replaced after being worn in the later use process instead of replacing the whole cylinder body; the steel seal is also in a replaceable mode, so that the method can be suitable for different seal requirements, and the applicability of the impact cylinder is improved;

2. the guide piece is arranged to be a surface with smooth side wall, the guide piece is fixed by another clamping piece which is connected to the cylinder body through screw threads, and the screwing direction of the clamping piece is opposite to the impact direction; the reason why the thread does not extend out of the guide piece is that in the process of impact, the guide piece is subjected to the acting force of the guide groove on the guide piece along the axial lead direction of the guide piece, and if the thread is arranged, the direction of the force acts on the side wall of the thread bulge; because the acting force of the impact force is very large, the thread is easily ground flat after being used for many times, so that the guide part falls off, and the impact effect is influenced; the force applied to the clamping piece is the force vertically acting on the protrusion of the clamping piece, so that the impact force generated on the side wall of the thread protrusion is reduced, and the service life of the clamping piece is prolonged.

3. The section of the sealing element is arranged to be in a flaring shape, the flaring opening faces to the impact direction of impact gas, gas in the cylinder body is compressed in the impact process, the gas acts on one side back to the flaring shape of the sealing element, but the flaring shape tends to be expanded continuously as the impact gas acts on the flaring inner wall of the sealing element, and the sealing element still has a sealing state as the acting force of the impact force is far greater than the pressure of the gas in the cylinder body; and the inner wall of cylinder body has seted up the hole of disappointing, and the hole of disappointing is favorable to the discharge of gas in the cylinder body, does not let the volume that makes gas produce the sudden change, can be even discharge from the hole of disappointing to make the process of impact more stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is an exploded schematic view of an embodiment;

fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 1.

Reference numerals: 1. a cylinder body; 2. an impact bar; 3. steel seal; 4. a guide groove; 5. a guide member; 6. a buffer member; 7. a buffer elastic member; 8. a limiting groove; 9. a restoring elastic member; 10. a sealing groove; 11. a seal member; 12. a cushion washer; 13. an air release hole; 14. a stop zone; 15. inserting grooves; 16. a latch slot; 17. a stop pin; 18. a clamping area; 19. a locking hole; 20. a fastener; 22. a fixing hole; 23. a guide ring; 24. impacting the upper cover; 25. an impingement tube; 26. impact the lower cover.

Detailed Description

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

Referring to fig. 1, for the utility model discloses an impact cylinder, including the whole cylinder body 1 that is hollow cylinder form, and the impact rod 2 of connection in cylinder body 1 slides. The cylinder body 1 is composed of an impact upper cover 24, an impact pipe 25 and an impact lower cover 26, wherein the impact upper cover 24 and the impact lower cover 26 are respectively connected to the upper end and the lower end of the impact pipe 25 through threaded fit.

Referring to fig. 2 and 3, the impact bar 2 is cylindrical as a whole, one end of the impact bar 2 extends out of the impact upper cover 24, and the end is detachably connected with the cylindrical steel seal 3. The end surface of the impact rod 2 extending out of one end of the impact upper cover 24 is provided with a cylindrical insertion groove 15, and the steel seal 3 is embedded into the insertion groove 15. The side wall of the steel seal 3 is provided with a sunken stopping area 14, the stopping area 14 is arc-shaped, the side wall of the end part of the impact rod 2 is provided with a penetrating pin slot 16, the pin slot 16 is communicated with the pin slot 15, a stopping pin 17 is embedded in the pin slot 16, and the side wall of the stopping pin 17 abuts against the arc-shaped surface of the stopping area 14. The cooperation of the two not only limits the steel seal 3 along the axial direction thereof, but also prevents the steel seal 3 from rotating.

The side wall of the impact rod 2 is provided with a strip-shaped guide groove 4, and the length direction of the guide groove 4 is parallel to the length direction of the impact rod 2. The cylinder body 1 is matched with a guide piece 5 in a sliding way at the position corresponding to the guide groove 4. In another embodiment: the guide piece 5 is arranged on the side wall of the impact rod 2 in a long-strip convex shape, the length direction of the guide piece is parallel to the axial direction of the impact rod 2, the guide groove 4 is positioned on the inner wall of the cylinder body 1, and the guide piece 5 is embedded into the guide groove 4 to limit the posture of the impact rod 2.

The cylinder body 1 is internally provided with a buffer piece 6, a buffering elastic piece 7 and a reset elastic piece 9 which are sleeved on the peripheral side of the impact rod 2 and are close to the extending end of the steel seal 3 in sequence. The cushion member 6 and the cushion elastic member 7 abut against each other. The side wall of the cylinder body 1 is provided with a plurality of air release holes 13 for discharging air, and the air release holes 13 are circumferentially distributed at equal intervals by taking the axial lead of the impact tube 25 as a base line.

Wherein, the buffer member 6 is clamped at the joint between the impact upper cover 24 and the impact tube 25. The impact tube 25 is provided with a limiting groove 8 for limiting the buffer elastic piece 7 to move along the axial direction thereof at the inner wall part close to one end of the impact upper cover 24. The buffering elastic piece 7 is positioned in the limiting groove 8. The cushion washer 12 is located at the junction of the impact lower cover 26 and the impact tube 25, and the other end of the impact rod 2 is located at the lower end inside the impact tube 25, and this end abuts against the cushion washer 12. A guide ring 23 protruding from the side wall of the impact rod 2 is integrally formed at one end of the impact rod 2 abutting against the cushion washer 12, an annular seal groove 10 is formed on the circumferential side of the guide ring 23, and a seal member 11 is embedded in the seal groove 10. The sealing member 11 has an annular structure, and a cross section of the annular strip along the axial direction thereof is flared in a flaring manner with a flaring opening facing the direction of the cushion gasket 12.

The end of the guide ring 23 remote from the cushion ring 12 is fixedly connected to the return spring 9, preferably by welding.

The impact upper cover 24 is provided with a cylindrical fixing hole 22 corresponding to the position of the guide groove 4, a guide 5 with smooth side wall is embedded in the fixing hole 22, and the embedded end part of the guide 5 is abutted against the guide groove 4. The side wall of the guide 5 is provided with a concave clamping area 18, and the clamping area 18 is opposite to the upper end of the impact upper cover 24. The upper end of the impact upper cover 24 is provided with a threaded clamping hole 19, an clamping piece 20 with a threaded side wall is screwed into the clamping hole 19, the clamping piece 20 is preferably a stud, and the screwed end part of the clamping piece 20 abuts against the clamping area 18.

Cushion washer 12 is preferably a polyurethane washer; the buffer member 6 is preferably a silica gel ring; the buffering elastic piece 7 is a rectangular spring; the return elastic member 9 is a generally circular spring.

The implementation principle of the embodiment is as follows:

the installation process comprises the following steps: the buffer elastic element 7 is firstly arranged in the impact tube 25, and then the impact rod 2 provided with the reset elastic element 9 and the sealing element 11 is arranged in the impact tube 25. The cushion washer 12 is placed on the lower end of the impact tube 25, and the impact lower cap 26 is mounted on the lower end of the impact tube 25. The buffer member 6 is then placed on the upper end of the shock tube 25, and the shock upper cap 24 is mounted on the upper end of the shock tube 25. The striking rod 2 is rotated at an angle such that the guide groove 4 is aligned with the fixing hole 22 and the guide 5 is inserted into the fixing hole 22. The clip 20 is then fitted into the locking hole 19 so that the end into which the clip 20 fits abuts the locking land 18. Finally, the stamp 3 is inserted into the plug groove 15 and the stamp 3 is angled so that the stop region 14 is aligned with the plug groove 16 and the stop pin 17 is inserted.

The working process is as follows: the lower end of the cylinder body 1 is communicated with an external air source device, and the instantaneous explosive force generated by the impact gas is utilized, so that the impact rod 2 continues to move along the stress direction under the action of inertia, and the steel seal 3 prints a sunken mark on the metal surface with certain metal hardness. Depressed marks, such as laser printed marks and painted marks, are not easily worn away to facilitate identification of the marked object.

During the impact, the impact rod 2 compresses the return elastic element 9, the guide ring 23 acts on the buffer elastic element 7, and the buffer elastic element 7 acts on the buffer element 6. A series of cushioning effect has reduced the impact force of impact rod 2 to cylinder body 1, because buffering elastic component 7 and cylinder body 1 are metal material, bolster 6 has played the effect of making an uproar that falls. Since the impact force is an instant effect, the elastic restoring piece 9 releases the elastic potential energy due to the existence of the elastic restoring piece 9, and pushes the guide ring 23 to restore the impact rod 2 to the original position.

When the steel seal 3 needs to be replaced, the stop pin 17 is only required to be taken down, and a new steel seal 3 is installed, so that the applicability of the impact cylinder is improved. When the guide 5 needs to be replaced, the card member 20 is removed, the guide 5 is removed, and a new guide 5 is replaced. The replacement of the guide 5 is less costly and easier than if the guide 5 were provided directly on the inner wall of the impingement tube 25. Convenient operation and prolonged service life of the impact cylinder.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an impact cylinder, includes cylinder body (1) and slides and connect impact rod (2) in cylinder body (1), the air inlet has been seted up on cylinder body (1), impact rod (2) stretch out the tip of cylinder body (1) can be dismantled and be connected with embossed seal (3), its characterized in that, be provided with bolster (6) in cylinder body (1), bolster (6) cover is established on impact rod (2), impact rod (2) have cup jointed buffering elastic component (7), the one end of buffering elastic component (7) with bolster (6) support tightly, bolster (6) are supported tightly in cylinder body (1), the other end of buffering elastic component (7) with the inner wall butt of cylinder body (1), impact rod (2) are located one end fixedly connected with in cylinder body (1) protrusion in guide ring (23) on impact rod (2) surface, a reset elastic element (9) is tightly propped between the guide ring (23) and the buffer element (6);

a guide groove (4) is formed in the side wall of the impact rod (2) and extends along the axial lead direction of the impact rod (2), a guide piece (5) is detachably connected to the cylinder body (1), and one end of the guide piece (5) extends into the guide groove (4) to limit the posture of the impact rod (2);

seal groove (10) have been seted up to the week lateral wall of guide ring (23), seal groove (10) embedded in has sealing member (11), keep away from in cylinder body (1) the one end card of embossed seal (3) has buffer washer (12), the lateral wall of cylinder body (1) is provided with and runs through disappointing hole (13) in cylinder body (1), guide ring (23) butt buffer washer (12).

2. The impact cylinder according to claim 1, wherein a fixing hole (22) is formed in a position, corresponding to the guide groove (4), of a side wall of the cylinder body (1), the guide piece (5) is embedded into the fixing hole (22) and abuts against the guide groove (4), a clamping area (18) is formed in the side wall of the guide piece (5), a clamping hole (19) is formed in a position, corresponding to the clamping area (18), of the cylinder body (1), a clamping piece (20) is arranged in the clamping hole (19) in a matched mode, and an end portion, extending into the clamping hole (19), of the clamping piece (20) abuts against the clamping area (18) to clamp the guide piece (5).

3. The percussion cylinder according to claim 2, wherein the catch (20) is screw-fitted to the latching hole (19), and the direction of the impact of the percussion lever (2) is opposite to the direction in which the catch (20) is screwed into the latching hole (19).

4. The impact cylinder according to claim 1, wherein one end of the impact rod (2) is provided with an insertion groove (15), the side wall of the steel seal (3) is provided with a stop area (14), the side wall of the impact rod (2) is provided with an insertion groove (16) which is communicated with the insertion groove (15) and aligned with the stop area (14), a stop pin (17) is inserted into the insertion groove (16), and one end of the stop pin (17) extends into the stop area (14) to clamp the steel seal (3).

5. An impact cylinder according to claim 1, characterized in that the damping spring (7) is a rectangular spring.

6. The percussion cylinder according to claim 1, characterized in that the seal (11) is embedded in the seal groove (10), the cross-section of the seal (11) being flared in a direction opposite to the intake direction of the intake port.

7. The impact cylinder according to claim 1, wherein the plurality of air release holes (13) are located at one end of the cylinder body (1) close to the steel seal (3) and are axially symmetrically distributed with an axial line of the cylinder body (1) as a base line.

8. The impact cylinder according to claim 1, characterized in that the cylinder block (1) comprises an impact upper cover (24), an impact pipe (25) and an impact lower cover (26); the impact upper cover (24) is fixedly connected to one end of the impact pipe (25), and the impact lower cover (26) is fixedly connected to the other end of the impact rod (2).