CN218611292U - Pneumatic press-mounting machine - Google Patents

Abstract

The utility model relates to a pneumatic press-mounting machine, which comprises at least one punching unit, wherein each punching unit comprises a pressing head, a driving piece, a connecting rod and a punching platform for placing parts to be pressed, the driving piece fixing frame is arranged above the punching platform, the driving end of the driving piece fixing frame is vertically downward, and a catching groove is arranged on the driving end of the driving piece fixing frame; one end of the connecting rod is buckled with the buckling groove, the other end of the connecting rod vertically extends downwards and is fixedly connected with the pressure head, and a positioning piece used for positioning the connecting rod is detachably arranged on the driving end of the driving piece; the driving piece drives the pressure head to move up and down through the connecting rod. The beneficial effects of the utility model are that simple structure can realize the quick pressure equipment of a plurality of parts, and pressure head dismouting dress convenient, conveniently changes the pressure head, and is easy and simple to handle, and production efficiency is high.

Description

Pneumatic press-mounting machine

Technical Field

The utility model relates to a pressure equipment technical field, concretely relates to pneumatic pressure equipment machine.

Background

Automobile parts need to be pressed and processed when being processed to process a punching groove, and a hydraulic cylinder is generally adopted to drive a pressure head to punch the parts in the traditional technology. Along with the increase of punching press number of times, the pressure head can take place wearing and tearing, needs the periodic replacement pressure head, but the pressure head among the prior art is the beading usually in the flexible end of pneumatic cylinder, and it is inconvenient to change, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a pneumatic pressure equipment machine is provided, aim at solving the problem among the prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a pneumatic press-mounting machine comprises at least one stamping unit, wherein each stamping unit comprises a pressing head, a driving piece, a connecting rod and a stamping platform for placing a part to be press-mounted, the driving piece fixing frame is arranged above the stamping platform, the driving end of the driving piece fixing frame is vertically downward, and a fastening groove is formed in the driving end of the driving piece fixing frame; one end of the connecting rod is buckled with the buckling groove, the other end of the connecting rod vertically extends downwards and is fixedly connected with the pressure head, and a positioning piece for positioning the connecting rod is detachably arranged on the driving end of the driving piece; the driving piece drives the pressure head to move up and down through the connecting rod.

The utility model has the advantages that: when in press mounting, firstly, a part to be pressed is placed on a punching table in a manner that can be thought by a person skilled in the art; then, the driving head of the driving piece moves the part on the stamping platform up and down to form a stamping groove on the part, so that the stamping is convenient, and the production efficiency is high; in addition, the pressure head passes through the connecting rod and can dismantle with the catching groove on the driving piece drive end and be connected to further fix a position through the setting element, realize the pressure head and be connected with dismantling of driving piece drive end, conveniently change the pressure head, it is easy and simple to handle. The utility model discloses simple structure can realize the quick pressure equipment of a plurality of parts, and the pressure head dismouting dress is convenient, conveniently changes the pressure head, and is easy and simple to handle, and production efficiency is high.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the catching groove is an L-shaped groove, the connecting rod is an L-shaped rod, and one end of the connecting rod can be inserted into the L-shaped groove and buckled with the L-shaped groove to connect the driving end of the driving member and the pressure head, or withdrawn from the L-shaped groove to separate the pressure head from the driving end of the driving member.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design utilizes the connecting rod of L shape and the lock in L shape groove to realize the preliminary connection of pressure head and driving piece drive end, makes things convenient for the location of follow-up setting element, conveniently changes the pressure head, and is easy and simple to handle, labour saving and time saving.

Furthermore, the buckling groove is an arc-shaped groove, one end of the connecting rod is in a hook shape, and one end of the connecting rod can be buckled into the arc-shaped groove to connect the driving end of the driving piece and the pressure head, or quit the arc-shaped groove to enable the pressure head to be separated from the driving end of the driving piece.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design utilizes the hook-shaped structure of connecting rod one end and the lock of arc wall to realize the preliminary connection of pressure head and driving piece drive end, makes things convenient for the location of follow-up setting element, conveniently changes the pressure head, and is easy and simple to handle, labour saving and time saving.

Furthermore, a threaded section is arranged at the position, corresponding to the buckling groove, of the driving part driving end, the positioning piece is a threaded sleeve, and the threaded sleeve is sleeved on the threaded section of the driving part driving end in a threaded manner; the screw sleeve is screwed to move upwards to loosen the connecting rod or move downwards to press the connecting rod tightly.

The beneficial effects of adopting above-mentioned further scheme are that simple structure can realize the quick assembly disassembly of pressure head, and is easy and simple to handle, labour saving and time saving.

Furthermore, a clamp for positioning the part to be processed is fixedly arranged on the punching table.

The beneficial effect of adopting above-mentioned further scheme is that during the pressure equipment, the part on the platform is lived towards in the anchor clamps location, avoids the part to take place to remove and influences the quality of part pressure equipment.

The punching machine further comprises a workbench, and the punching platform is fixedly arranged on the workbench; still fixed mounting has the mounting bracket on the workstation, driving piece fixed mounting is in on the mounting bracket.

The beneficial effects of adopting above-mentioned further scheme are that simple structure through the workstation with each parts integration in an organic whole, and mounting bracket easy to assemble driving piece, convenient to use.

The stamping device further comprises a control panel and at least one displacement sensor which corresponds to the stamping units one by one, the control panel is fixedly arranged on the workbench, and the displacement sensors are fixedly arranged at the positions of the mounting rack, which correspond to the driving pieces; the displacement sensor and the driving piece are respectively in communication connection with the control panel.

The beneficial effects of adopting above-mentioned further scheme are that during the pressure equipment, detect the displacement of driving piece driving pressure head punching press through displacement sensor to signal transmission who will correspond gives control panel, and control panel control driving piece driving pressure head punching press's position avoids the punching press excessively and damages the part, guarantees the quality of part pressure equipment.

Further, a light sense safety switch is fixedly installed on the workbench and located beside the punching table and in communication connection with the control panel.

The technical scheme has the advantages that when the press mounting is carried out, whether the arm of a person extends to a stamping area or not is detected through the light-sensitive safety switch, and a corresponding signal is sent to the control panel; when the light sense safety switch detects that the arm of a person extends to the stamping area, the control panel receives the corresponding signal and closes the driving piece to stop operation, so that the injury of the person is avoided, and the safety and the reliability are realized.

It should be noted that the light-sensitive safety switch is usually arranged on one side of the workbench where the control panel is arranged, so that the operation of workers is facilitated, and the safety and the reliability are realized.

The driving end of the driving piece is divided into a first section and a second section, the pressure sensor is positioned between the first section and the second section, and two ends of the pressure sensor are respectively fixedly connected with opposite ends of the first section and the second section; the pressure sensor is in communication connection with the control panel.

The beneficial effects of adopting above-mentioned further scheme are that during the pressure equipment, detect the pressure of pressure head punching press part through pressure sensor to signal transmission with corresponding gives control panel, control panel control driving piece drive ram punching press's position, avoid the punching press excessive and damage the part, guarantee the quality of part pressure equipment.

Further, the driving piece is a gas-liquid pressure cylinder, and a pressure gauge for detecting the internal pressure of the gas-liquid pressure cylinder is fixedly mounted on the gas-liquid pressure cylinder.

The beneficial effect of adopting above-mentioned further scheme is that the punching press of gas-liquid pressure cylinder is convenient, and sensitivity is high, and the inside pressure detection of accessible manometer gas-liquid pressure cylinder makes things convenient for the staff to observe.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the driving member of the present invention connected to a first embodiment of a ram;

FIG. 3 is a schematic structural view of the driving member of the present invention when detached from the first embodiment of the ram;

fig. 4 is a schematic structural view of the driving member of the present invention connected to a second embodiment of the ram;

fig. 5 is a schematic structural view of the driving member of the present invention when detached from the second embodiment of the indenter;

fig. 6 is a second schematic structural view of the driving member and the indenter of the second embodiment of the present invention when they are disassembled.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a pressure head; 2. punching a platform; 3. a connecting rod; 4. an L-shaped slot; 5. an arc-shaped slot; 6. a threaded sleeve; 7. positioning blocks; 8. a clamping block; 9. a work table; 10. a mounting frame; 11. a control panel; 12. a displacement sensor; 13. a light-sensitive safety switch; 14. a pressure sensor; 15. a gas-liquid pressure cylinder; 16. a pressure gauge; 17. a display; 18. a reinforcing block; 19. a guide frame; 20. and a limiting plate.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1 to 6, the embodiment provides a pneumatic press-fitting machine, which includes at least one press-fitting unit, each press-fitting unit includes a press head 1, a driving member, a connecting rod 3, and a punching table 2 for placing a part to be press-fitted, the driving member fixing frame is disposed above the punching table 2, the driving end of the driving member is vertically downward, and the driving end of the driving member is provided with a catching groove; one end of the connecting rod 3 is buckled with the buckling groove, the other end of the connecting rod extends vertically downwards and is fixedly connected with the pressure head 1, and a positioning piece for positioning the connecting rod 3 is detachably arranged on the driving end of the driving piece; the driving piece drives the pressure head 1 to move up and down through the connecting rod 3.

During press mounting, firstly, a part to be pressed is placed on the punching table 2 in a manner that can be thought by a person skilled in the art; then, the driving head 1 of the driving piece moves the part on the stamping platform 2 up and down to form a stamping groove on the part, so that the stamping is convenient and the production efficiency is high; in addition, the pressure head 1 can be dismantled with the catching groove on the driving piece drive end through connecting rod 3 and be connected to further fix a position through the setting element, realize the pressure head 1 and be connected with dismantling of driving piece drive end, conveniently change pressure head 1, it is easy and simple to handle.

Preferably, in this embodiment, the punching stage 2 may include a support plate, or may include a plurality of support plates, the plurality of support plates are spaced from top to bottom, and two adjacent support plates are connected by a plurality of connecting columns spaced from each other.

The press fitting device is simple in structure, capable of realizing quick press fitting of a plurality of parts and high in production efficiency; and the pressure head 1 is convenient to disassemble, assemble and replace, the operation is simple and convenient, and time and labor are saved.

Example 2

As shown in fig. 2 and 3, on the basis of embodiment 1, in this embodiment, the catching groove is an L-shaped groove 4, and the connecting rod 3 is an L-shaped rod, and one end of the L-shaped groove can be inserted into the L-shaped groove 4 and caught by the L-shaped groove 4 to connect the driving end of the driving member and the ram 1, or can be withdrawn from the L-shaped groove 4 to separate the ram 1 from the driving end of the driving member. This scheme simple structure, reasonable in design utilizes the connecting rod 3 of L shape and the lock in L shape groove 4 to realize the initial connection of pressure head 1 and driving piece drive end, makes things convenient for the location of follow-up setting element, conveniently changes pressure head 1, and is easy and simple to handle, labour saving and time saving.

Example 3

As shown in fig. 4 to 6, on the basis of embodiment 1, in this embodiment, the fastening groove is an arc-shaped groove 5, and the lower end of the arc-shaped groove 5 is open; one end of the connecting rod 3 is hook-shaped, and one end of the connecting rod can be buckled into the arc-shaped groove 5 to connect the driving end of the driving piece and the pressure head 1, or quit from the arc-shaped groove 5 to separate the pressure head 1 from the driving end of the driving piece. This scheme simple structure, reasonable in design utilizes the hook-shaped structure of 3 one ends of connecting rod and the lock of arc wall 5 to realize the initial connection of pressure head 1 and driving piece drive end, makes things convenient for the location of follow-up setting element, conveniently changes pressure head 1, and is easy and simple to handle, labour saving and time saving.

Above-mentioned scheme and embodiment 2's scheme and parallel scheme, the both can realize the quick connection of pressure head 1 and driving part 1 drive end, and is easy and simple to handle, conveniently changes pressure head 1.

Example 4

On the basis of the above embodiments, in this embodiment, a threaded section is provided at a position corresponding to the fastening groove at the driving end of the driving member, and the fastening groove is located at the lower end of the threaded section; the positioning piece is a threaded sleeve 6, and the threaded sleeve 6 is sleeved on the threaded section of the driving end of the driving piece in a threaded manner; the screw 6 is screwed up to loosen the connecting rod 3 or down to press the connecting rod 3.

During disassembly and assembly, the threaded sleeve 6 is manually screwed to move upwards to expose the buckling groove, then one end of the connecting rod 3 is manually buckled into the buckling groove, and finally the threaded sleeve 6 is manually screwed to move downwards to press one end of the connecting rod 3. This scheme simple structure can realize pressure head 1's quick assembly disassembly, and is easy and simple to handle, labour saving and time saving.

Besides the above embodiment, the positioning member may also be a positioning screw, and at this time, a screw hole communicating with the fastening groove may be provided on the driving end of the driving member, and the positioning screw is screwed into the screw hole. When the pressure head is used, the positioning screw is manually screwed until one end of the positioning screw abuts against or loosens one end of the connecting rod 3 so as to fix or loosen the connecting rod 3, thereby fixing or disassembling the pressure head 1.

Example 5

On the basis of the above embodiments, in the present embodiment, a jig for positioning a part to be machined is fixedly mounted on the punching table 2. During press mounting, the part on the punching platform 2 is positioned by the fixture, so that the influence on the quality of press mounting of the part caused by the movement of the part is avoided.

Preferably, in the embodiment, the fixture comprises a positioning block 7, the positioning block 7 is fixedly installed on the punching table 2, and two clamping blocks 8 for clamping the part to be pressed are relatively and fixedly installed at the top of the positioning block 7. During positioning, the part with press fitting is manually placed on the positioning block 7, and the two clamping blocks 8 respectively clamp two sides of the part, so that the part is prevented from displacing.

The positioning block 7 is preferably of a columnar structure, and the clamp block 8 is preferably of a rectangular block structure.

In addition, a reinforcing block 18 is fixedly arranged between each punching platform 2 and the corresponding positioning block 7, and the reinforcing blocks 18 can increase the strength of the punching platforms 2 and prolong the service life of the punching platforms 2.

In addition to the above embodiments, the above-mentioned clamp may also adopt other suitable structures, for example, the clamp includes a supporting block, a fixed clamping block and a movable clamping block, the fixed clamping block is fixedly installed on the supporting block, the movable clamping block is distributed opposite to the fixed clamping block, and the movable clamping block is horizontally movably installed on the supporting block to be close to or far away from the fixed clamping block. The scheme has reasonable design, can realize the positioning of parts with different sizes and has wider application range.

The movable clamping block can be mounted in the following mode: a fixed seat is fixedly arranged on the supporting block, and a through hole with two open ends is arranged on the fixed seat along the moving direction of the movable clamping block; horizontal gliding installs the pull rod in the through-hole, outside the both ends of pull rod extended to the both ends of through-hole respectively, its one end fixedly connected with handle of keeping away from fixed clamp splice is close to the one end and the activity clamp splice fixed connection of fixed clamp splice, and the pull rod is located the slip cap and is equipped with the spring on the position between fixing base and the activity clamp splice, the both ends of spring respectively with fixing base and activity clamp splice butt. During positioning, the pull rod is manually operated to drive the movable clamping block to be far away from the fixed clamping block, then the part is placed between the fixed clamping block and the movable clamping block, and finally the pull rod is loosened to enable the movable clamping block to tightly press the part under the action of spring force.

Example 6

On the basis of the above embodiments, the present embodiment further includes a working table 9, and the punching table 2 is fixedly mounted on the working table 9; the workbench 9 is also fixedly provided with a mounting rack 10, and the driving piece is fixedly arranged on the mounting rack 10. This scheme simple structure through workstation 9 with each parts integration in an organic whole, and mounting bracket 10 easy to assemble driving piece, convenient to use.

The mounting rack 10 comprises a top plate and a bottom plate, the bottom plate is horizontally and fixedly arranged on the workbench 9, and the punching platform 2 is fixedly arranged on the bottom plate; the top plate is horizontally positioned above the punching platform 2 and is fixedly connected with the bottom plate through four supporting rods; the driving piece is fixedly arranged on the top plate.

Preferably, in the present embodiment, the number of the punching units is preferably multiple, and the multiple punching units are distributed on the working table 9 at intervals and do not affect each other.

Example 7

On the basis of the embodiment 6, the present embodiment further includes a control panel 11 and at least one displacement sensor 12 corresponding to the punching units one by one, the control panel 11 is fixedly installed on the workbench 9, and the displacement sensor 12 is fixedly installed at a position of the installation frame 10 corresponding to the driving member; the displacement sensor 12 and the driving member are respectively connected with the control panel 11 in communication.

During the pressure equipment, detect the displacement of the 1 punching press of driving piece driving pressure head through displacement sensor 12 to signal transmission who will correspond gives control panel 11, and control panel 11 controls the position of the 1 punching press of driving piece driving pressure head, avoids the punching press excessive and damages the part, guarantees the quality of part pressure equipment.

Preferably, in this embodiment, the displacement sensor 12 is preferably an inductive sensor, which has high sensitivity and is convenient for detection.

In addition, a plurality of operating buttons are arranged on the control panel 11, so that the operation of workers is facilitated.

Example 8

In the present embodiment, on the basis of any one of embodiments 6 to 7, the light-sensitive safety switch 13 is fixedly installed on the working platform 9, and the light-sensitive safety switch 13 is located beside the punching platform 2 and is in communication connection with the control panel 11.

During press mounting, whether the arm of a person extends to a stamping area or not is detected through the light-sensitive safety switch 13, and a corresponding signal is sent to the control panel 11; when the light-sensitive safety switch 13 detects that the arm of a person extends to the stamping area, the control panel 11 receives the corresponding signal and closes the driving part to stop the operation, so that the injury of the person is avoided, and the safety and the reliability are realized.

It should be noted that the light-sensitive safety switch 13 is usually disposed on a side of the workbench 9 corresponding to the control panel 11, and a worker usually operates from the side of the workbench 9 during press fitting, so that an arm of the worker basically extends into the punching area from the side of the workbench 9, and therefore the light-sensitive safety switch 13 is disposed on the side of the workbench 9, which is convenient for the worker to operate, and is safe and reliable.

Example 9

On the basis of any one of embodiments 6 to 9, the present embodiment further includes at least one pressure sensor 14 corresponding to the punching unit one to one, the driving end of the driving member is divided into a first section and a second section, the pressure sensor 14 is located between the first section and the second section, and both ends of the pressure sensor are respectively fixedly connected with opposite ends of the first section and the second section; the pressure sensor 14 is in communication with the control panel 11.

During the pressure equipment, detect the pressure of pressure head 1 punching press part through pressure sensor 14 to with corresponding signal transmission for control panel 11, control panel 11 controls the position of driving piece driving pressure head 1 punching press, avoid the punching press excessive and damage the part, guarantee the quality of part pressure equipment.

Preferably, in this embodiment, a display 17 is further fixedly mounted on the working platform 9, and the display 17 is in communication connection with the control panel 11. During the pressure equipment, detect the pressure of pressure head 1 punching press part through pressure sensor 14 to signal transmission with corresponding gives control panel 11, control panel 11 shows this pressure value in display 17, makes things convenient for the staff to observe, and control panel 11 controls the position of driving piece driving pressure head 1 punching press simultaneously, avoids the punching press excessive and damage the part, guarantees the quality of part pressure equipment.

In addition, at least one guide frame 19 corresponding to the punching units one to one is fixedly installed on the installation frame 10, an opening through which the pressing head 1 penetrates is formed in the guide frame 19, a limiting plate 20 is fixedly installed at a position, located above the opening, on the guide frame 19, a round hole through which a section of pressing head 1 penetrates is formed in the limiting plate 20, and the pressure sensor 14 is located between the opening and the limiting plate 20.

Example 10

On the basis of the above embodiments, in the present embodiment, the driving member is the gas-liquid pressure cylinder 15, a pressure gauge 16 for detecting the internal pressure of the gas-liquid pressure cylinder 15 is fixedly mounted on the gas-liquid pressure cylinder 15, and a detection probe of the pressure gauge 16 extends to the inside of the gas-liquid pressure cylinder 15. The gas-liquid pressure cylinder 15 is convenient to punch and high in sensitivity, the pressure inside the gas-liquid pressure cylinder 15 can be detected through the pressure gauge 16, observation of workers is facilitated, and the gas-liquid pressure cylinder is convenient to use.

The gas-liquid pressure cylinder 15 is formed by integrally combining a hydraulic cylinder and a pressure booster, and works by utilizing the ratio of the pressure-bearing cross-sectional areas of the pressure booster with different sizes and the Pascal energy conservation principle, and simultaneously, a pressure gauge 16 is utilized to detect the pressure in the gas-liquid pressure cylinder 15. Because the pressure is not changed, when the pressed area is changed from large to small, the pressure intensity can also change along with the difference of the size, thereby achieving the effect of increasing the pressure to dozens of times, taking a pre-pressing type pressure cylinder as an example: when working air pressure is pressed on the surface of hydraulic oil (or a piston), the hydraulic oil can compress air to act and flow to the prepressing stroke cavity, the hydraulic oil can rapidly push the part to make displacement, the cylinder stops acting when the working displacement meets resistance greater than the air pressure, and at the moment, the pressurizing cavity of the pressurizing cylinder starts pressurizing because of the action of an electric signal (or a pneumatic signal), so that the purpose of forming a product is achieved.

It should be noted that, the gas-liquid pressurizing cylinder 15 and the pressure gauge 16 both adopt the prior art, and the specific structure and principle thereof are not described herein again.

The volume of the gas-liquid pressurizing cylinders 15 in different punching units can be the same or different.

The working principle of the utility model is as follows:

firstly, manually placing a part with press fitting on a positioning block 7, and respectively clamping two sides of the part by two clamping blocks 8 to avoid the part from displacing; then, the gas-liquid pressure cylinder 15 drives the pressure head 1 to punch the part; finally, taking down the part after the part is processed; and repeating the operation to realize the press mounting operation of the batch parts.

During disassembly and assembly, the threaded sleeve 6 is manually screwed to move upwards to expose the buckling groove, then one end of the connecting rod 3 is manually buckled into the buckling groove, and finally the threaded sleeve 6 is manually screwed to move downwards to press one end of the connecting rod 3. This scheme simple structure can realize pressure head 1's quick assembly disassembly, and is easy and simple to handle, labour saving and time saving.

The utility model discloses simple structure can realize the quick pressure equipment of a plurality of parts, and 1 dismouting dress of pressure head is convenient, conveniently changes pressure head 1, and is easy and simple to handle, and production efficiency is high.

It should be noted that, the electronic components according to the present invention all adopt the prior art, and the above-mentioned components are electrically connected to the control panel, and the control circuit between the controller panel and each component is the prior art.

In addition, connecting lines among all the components are reasonably distributed, and corresponding components are provided with threading holes, so that each line cannot influence press fitting operation, and the safety of workers is guaranteed.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a pneumatic pressure equipment machine which characterized in that: the stamping device comprises at least one stamping unit, wherein each stamping unit comprises a pressing head (1), a driving piece, a connecting rod (3) and a stamping platform (2) for placing a part to be pressed, the driving piece fixing frame is arranged above the stamping platform (2), the driving end of the driving piece fixing frame is vertically downward, and a fastening groove is formed in the driving end of the driving piece fixing frame; one end of the connecting rod (3) is buckled with the buckling groove, the other end of the connecting rod extends vertically downwards and is fixedly connected with the pressure head (1), and a positioning piece for positioning the connecting rod (3) is detachably arranged on the driving end of the driving piece; the driving piece drives the pressure head (1) to move up and down through the connecting rod (3).

2. The pneumatic press according to claim 1, wherein: the catching groove is an L-shaped groove (4), the connecting rod (3) is an L-shaped rod, and one end of the connecting rod can be inserted into the L-shaped groove (4) and buckled with the L-shaped groove (4) to connect the driving end of the driving piece and the pressure head (1), or the connecting rod is withdrawn from the L-shaped groove (4) to separate the pressure head (1) from the driving end of the driving piece.

3. The pneumatic press according to claim 1, wherein: the buckling groove is an arc-shaped groove (5), one end of the connecting rod (3) is hook-shaped, and one end of the connecting rod can be buckled into the arc-shaped groove (5) to connect the driving end of the driving piece and the pressure head (1), or the connecting rod exits from the arc-shaped groove (5) to enable the pressure head (1) to be separated from the driving end of the driving piece.

4. The pneumatic press according to any one of claims 1 to 3, wherein: a threaded section is arranged at the position, corresponding to the buckling groove, of the driving part driving end, the positioning piece is a threaded sleeve (6), and the threaded sleeve (6) is sleeved on the threaded section of the driving part driving end in a threaded manner; the screw sleeve (6) is screwed to move upwards to loosen the connecting rod (3) or move downwards to press the connecting rod (3).

5. The pneumatic press according to any one of claims 1 to 3, wherein: and a clamp for positioning the part to be processed is fixedly arranged on the punching table (2).

6. The pneumatic press according to any one of claims 1 to 3, wherein: the punching machine further comprises a workbench (9), and the punching table (2) is fixedly arranged on the workbench (9); still fixed mounting have mounting bracket (10) on workstation (9), driving piece fixed mounting be in on mounting bracket (10).

7. The pneumatic press according to claim 6, wherein: the stamping device is characterized by further comprising a control panel (11) and at least one displacement sensor (12) corresponding to the stamping units one by one, wherein the control panel (11) is fixedly installed on the workbench (9), and the displacement sensor (12) is fixedly installed at the position, corresponding to the driving piece, of the installation rack (10); the displacement sensor (12) and the driving piece are respectively in communication connection with the control panel (11).

8. The pneumatic press according to claim 7, wherein: a light-sensitive safety switch (13) is fixedly mounted on the workbench (9), and the light-sensitive safety switch (13) is located beside the punching table (2) and is in communication connection with the control panel (11).

9. The pneumatic press according to claim 8, wherein: the stamping device is characterized by further comprising at least one pressure sensor (14) corresponding to the stamping unit one by one, the driving end of the driving piece is divided into a first section and a second section, the pressure sensor (14) is located between the first section and the second section, and two ends of the pressure sensor are fixedly connected with opposite ends of the first section and the second section respectively; the pressure sensor (14) is in communication connection with the control panel (11).

10. The pneumatic press according to any one of claims 1 to 3, wherein: the driving piece is a gas-liquid pressure cylinder (15), and a pressure gauge (16) for detecting the internal pressure of the gas-liquid pressure cylinder (15) is fixedly installed on the gas-liquid pressure cylinder.

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