Punching mechanism with floating end

Abstract

The utility model discloses an end floating punching mechanism, and belongs to the field of automobile part machining, the end floating punching mechanism comprises a base plate, a punching seat and a mounting seat, the mounting seat is mounted on the base plate through an inclined cushion block, a channel allowing a sealing strip to be inserted is arranged in the mounting seat, the channel is parallel to the base plate, and the inclined cushion block is arranged on the base plate. The punching base is installed above the installation base, acute included angles are formed among the punching base, the installation base and the base plate, a punching tool connected with the punching cylinder and a pressing block connected with the punching cylinder in a floating mode are installed on the punching base, and the bottom face of the pressing block is located below the punching tool. The structure of the punching mechanism is further optimized, the downward punching friction resistance of the punching tool is reduced, and high-precision punching is achieved in cooperation with the pressing block arranged in a floating mode.

Description

Technical Field

[0001] The present application relates to the field of processing automobile parts, and in particular to a punching mechanism with floating end. Background Art

[0002] Automobile sealing strips are important components installed in automobiles to seal gaps inside the car, and they mainly play the role of sealing, waterproofing, and noise reduction inside the car. In the process of processing automobile sealing strips, punching tools are needed to perform punching operations on them. In the process of processing and punching, existing punching tools mostly complete the punching operations by controlling the vertical drop of the punching knife.

[0003] Related prior art such as Chinese patent application "A tooling fixture for a U-shaped skeleton automobile sealing strip", application number 202210399687.5; discloses: a driving unit; a first clamping mechanism, the first clamping mechanism includes a first upper pressing block, a first lower pressing block and a first side pressing block, the driving end of the driving unit is respectively connected to the first upper pressing block and the first side pressing block in a transmission manner, the driving unit drives the first upper pressing block to move in a direction close to or away from the first lower pressing block, the driving unit drives the first side pressing block to move in a direction close to or away from the first position on the sealing strip, and the first side pressing block has a supporting portion, the supporting portion is used to insert into the U-shaped groove on the sealing strip, and the surface of the supporting portion is against the suspended side wall in the U-shaped groove. The present invention provides a tooling fixture for a U-shaped skeleton automobile sealing strip, which supports the suspended side wall in the U-shaped groove by setting a first side pressing block, and the support plate on the first side pressing block is used to insert into the U-shaped groove of the sealing strip, so as to avoid deformation of the skeleton in the suspended side wall due to punching, thereby improving the punching effect.

[0004] However, due to the requirements of the installation environment or its own functions, some sealing strips need to be cut at the required oblique angle on their end faces. If the punching angle is too large, the friction coefficient of the cutter seat in the cavity will increase according to the conventional design, which will lead to a state of being unable to slide. In response to the above problems, relevant prior art such as the Chinese patent application "A large-angle punching device for the lip of automobile water-cut sealing strips", application number: CN201810551336.5; discloses a product placement seat, a lower module, a cutter seat, a block and a cutter piece, and a lower pad is also provided at the lower end of the lower module. The lower pad is set at an angle of 5 degrees with the lower plane. The lower module has a table placement seat and a lower mold cavity. The cutter seat is obliquely arranged in the lower mold cavity and can move along the lower mold cavity. The punch is located at the upper end of the cutter seat, and the cutter piece is fixed to the cutter seat. The sealing strip to be punched with a lip is fixed on the table placement seat, and the lip of the sealing strip is opposite to the cutter piece. An internal and external positioning component is provided on the lower module next to the cutter piece. The advantage is that the lower pad is designed to be at an angle of 5 degrees, which is equivalent to rotating the entire lower mold assembly by 5 degrees, which is beneficial to reducing the sliding coefficient of the cutter seat in the lower mold cavity, making the entire punching smooth and convenient, and the punching efficiency is high.

[0005] However, the above patent application still deserves further improvement, and the structural design of the punching mechanism is further optimized to achieve a good bevel punching effect on the sealing strip. Utility Model Content

[0006] The technical problem to be solved by the present application is to provide a punching mechanism with a floating end, further optimize the structure of the punching mechanism, reduce the friction resistance of the punching tool when punching downward, and cooperate with a floating pressure block to achieve high-precision punching.

[0007] The technical solution adopted in the present application is: a punching mechanism with floating end, comprising a base plate, a punching seat and a mounting seat, wherein the mounting seat is mounted on the base plate through an inclined pad, a channel for inserting a sealing strip is arranged inside the mounting seat, and the channel is arranged parallel to the base plate, the punching seat is mounted above the mounting seat, and an acute angle exists between the punching seat, the mounting seat and the base plate, a punching tool connected to a punching cylinder and a pressure block floatingly connected to the punching cylinder are mounted on the punching seat, and the bottom surface of the pressure block is located below the punching tool.

[0008] Compared with the prior art, the advantages of the present application are that, firstly, the present application realizes the connection of the mounting seat through the inclined pad on the base, and realizes the inclined setting of the mounting seat itself relative to the substrate. And the punching seat is installed on the mounting seat, that is, the two are a reference, ensuring the relative position accuracy between the punching seat and the mounting seat, so as to achieve a precision of the punching process of the sealing strip. The punching cylinder installed on the punching seat will naturally carry the punching tool to punch along an inclined angle, reducing the friction resistance of punching. Secondly, the present application designs a channel for inserting the sealing strip in the mounting seat, the channel is arranged parallel to the substrate, and there is an acute angle between the punching seat, the mounting seat and the substrate. It ensures that the sealing strip is inserted along the reference plane of the substrate. Generally speaking, the substrate will be installed horizontally on the frame, so the channel parallel to the substrate is also horizontal, that is, the sealing strip is horizontally extended into the mounting seat. Because the sealing strip itself is easily bent by force, the sealing strip placed horizontally or moved horizontally can avoid this problem as much as possible. Again, the present application connects the punching tool and the pressure block on a punching cylinder. The pressure block adopts a floating connection, which is an elastic connection relationship, and the bottom surface of the pressure block is located below the punching tool. Then, when the punching cylinder is working and pressing down, the pressure block will first reach the channel to achieve the compression of the sealing strip. Then, because the pressure block is floatingly connected, under the condition of force, the punching tool will continue to move downward relative to the pressure block to achieve the punching process of the sealing strip. The pressure block and the punching tool of the present application use the same punching cylinder, which, on the one hand, reduces the setting of the power device, reduces the equipment cost, and reduces the equipment volume. On the other hand, the movement trajectory of the pressure block and the punching tool remains completely consistent, thereby improving the punching processing accuracy.

[0009] In some embodiments of the present application, a punching cylinder is fixedly mounted on the punching seat, a transmission shaft of the punching cylinder is connected to a power block, the punching tool is fixedly connected to the power block, and the pressure block is connected to the power block via a spring assembly. In the present application, in order to facilitate the movement of multiple components by a single punching cylinder power, a power block is added, thereby increasing the connection space.

[0010] In the present application, the punching tool is fixedly connected to the power block, that is, the movements of the punching tool and the power block are synchronized. The pressure block is connected to the power block through a spring assembly, realizing a floating connection of the pressure block, that is, the pressure of the pressure block on the sealing strip is a process of gradually increasing. When the punching tool punches the sealing strip, the pressure of the pressure block on the sealing strip reaches the maximum.

[0011] The punching tool is attached to the rear side of the pressing block, and the punching tool moves downward along the rear side of the pressing block to cause relative displacement. In the present application, the punching tool is further attached to the rear side of the pressing block to limit the movement trajectory of the punching tool, thereby ensuring that the movement trajectory of the punching tool is reliable, thereby improving the punching accuracy.

[0012] The invention is characterized in that the spring assembly comprises at least two linear springs of the same structure, and there is a distance between two adjacent linear springs. The at least two linear springs of the same structure are used to realize a stable, reliable and floating motion state of the pressing block.

[0013] The invention is characterized in that an embedding block is movably arranged in the mounting seat, and the embedding block includes an embedding portion adapted to the inner space of the sealing strip, and the embedding portion can be embedded in the sealing strip. The sealing strip is generally not a completely solid structure, and the embedding block well simulates the installation condition of the sealing strip, fills the gap in the sealing strip, avoids deformation of the sealing strip during punching, and improves the punching accuracy of the sealing strip.

[0014] It is characterized in that a first transverse slide is arranged in the mounting seat, the embedded block is installed in the first transverse slide, the embedded block moves along the first transverse slide when subjected to force, and the first transverse slide is arranged perpendicular to the channel.

[0015] That is, the embedding block moves in the first transverse slideway, and can be embedded into the sealing strip from the side where the sealing strip opening is located, or partially withdrawn from the sealing strip.

[0016] The movable embedding block is adopted because if the embedding block is kept in the embedded state, that is, the embedding block fully fills the gap in the sealing strip, the resistance to the movement of the sealing strip along the channel is relatively large, which makes it inconvenient to move the sealing strip.

[0017] It is characterized in that a first longitudinal channel is arranged in the mounting seat, the first longitudinal channel runs through the embedded block, the first longitudinal channel is arranged perpendicular to the top surface of the inclined pad block, a first guide rod is arranged in the first longitudinal channel, and the first guide rod moves up and down to drive the embedded block to move along the first transverse channel.

[0018] In the present application, the power of the embedded block movement comes from the up and down movement of the first guide rod. Specifically, the top of the first guide rod is connected to the power block, and the up and down movement of the power block drives the first guide rod to move up and down. In the present application, the punching cylinder synchronously drives the up and down movement of the three parts. Its power is fully utilized, reducing the use of power cylinders, saving manufacturing costs and space.

[0019] It is characterized in that a second longitudinal channel is arranged in the mounting seat, and the second longitudinal channel is arranged perpendicular to the top surface of the inclined pad block. A support block is movably installed in the second longitudinal channel, and the support block moves along the second longitudinal channel when subjected to force. A groove adapted to the bottom of the sealing strip is provided on the top surface of the support block, and a support portion extending into the inner side of the lip of the sealing strip is also provided on the support block, and the embedded portion is opposite to the support portion.

[0020] In the present application, the embedding block and the support block form a support for the left and right sides and the bottom of the sealing strip. When the embedding portion is inserted into the sealing strip, the embedding portion moves toward the support portion, thus achieving a left and right clamping. In the present application, the sealing strip is fully stably and reliably installed by the pressing block, the embedding block, and the support block, thereby improving the processing accuracy of the sealing strip.

[0021] The movement of the support block in the longitudinal direction realizes a large space in the channel for the sealing strip to extend into, and a small space in the channel clamps the sealing strip.

[0022] It is characterized in that a second transverse channel is arranged in the mounting seat, the second transverse channel runs through the support block, the second transverse channel is arranged perpendicular to the channel, a second guide rod is arranged in the second transverse channel, and the second guide rod moves left and right to drive the support block to move along the second longitudinal channel.

[0023] The present application also includes a lateral cylinder, which is connected to the second guide rod, and the lateral cylinder drives the second guide rod to move along the second longitudinal channel. A protrusion is arranged on the top of the second guide rod, and when the protrusion moves into the support block, the support block moves upward to support and clamp the sealing strip.

[0024] It is characterized in that at least two guide seats are installed on the base plate, and there is a distance between the guide seats, so that the guide seats can well support the sealing strip.

[0025] One of the guide seats is connected to the introduction end of the mounting seat, and a guide block is arranged on the guide seat, and a guide portion is arranged on the guide block. The guide portion is adapted to the inner space of the sealing strip, and one end of the guide portion extends into the channel and connects with the embedded portion.

[0026] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of this application;

[0029] Figure 2 This is a cross-sectional view of the mounting seat for this application;

[0030] Figure 3 This is a schematic diagram of the internal structure of this application.

[0031] Among them, the specific description of the figure numbers is as follows: 1. Base plate; 2. Punching seat; 3. Mounting seat; 4. Inclined pad; 6. Pressure block; 7. Punching cylinder; 8. Punching tool; 9. Power block; 10. Spring assembly; 11. Embedded block; 12. First transverse slide; 13. First longitudinal channel; 14. First guide rod; 15. Second longitudinal channel; 16. Support block; 17. Second transverse channel; 18. Second guide rod; 19. Lateral cylinder; 20. Bump; 21. Guide seat. DETAILED DESCRIPTION

[0032] The present application is described in detail below in conjunction with the accompanying drawings.

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] A punching mechanism with floating end, the embodiment is as follows Figures 1 to 3As shown: it includes a base plate 1, a punching seat 2 and a mounting seat 3. The mounting seat 3 is mounted on the base plate 1 through an inclined pad 4 to achieve an inclined setting of the mounting seat 3 relative to the base plate 1. The punching seat 2 is mounted on the mounting seat 3, that is, the two are a reference to ensure the relative position accuracy between the punching seat 2 and the mounting seat 3, thereby achieving a certain accuracy of the punching process of the sealing strip. The punching cylinder 7 installed on the punching seat 2 will naturally carry the punching tool 8 to punch along an inclined angle to reduce the friction resistance of punching.

[0035] The mounting seat 3 is provided with a channel for inserting the sealing strip, and the channel is arranged parallel to the base plate 1. The punching seat 2 is installed above the mounting seat 3. There is an acute angle between the punching seat 2, the mounting seat 3 and the base plate 1, which ensures that the sealing strip is inserted along the reference plane of the base plate 1. Generally speaking, the base plate 1 will be installed horizontally on the frame, so the channel parallel to the base plate 1 is also horizontal, that is, the sealing strip is horizontally extended into the mounting seat 3. Because the sealing strip itself is easily bent by force, the sealing strip placed or moved horizontally can avoid this problem as much as possible.

[0036] The punching seat 2 is equipped with a punching tool 8 connected to the punching cylinder 7 and a pressure block 6 floatingly connected to the punching cylinder 7, and the bottom surface of the pressure block 6 is located below the punching tool 8. The pressure block 6 adopts a floating connection, which is an elastic connection relationship, and the bottom surface of the pressure block 6 is located below the punching tool 8. Then, when the punching cylinder 7 is working and pressing down, the pressure block 6 will first reach the channel to achieve the compression of the sealing strip. Then, because the pressure block 6 is floatingly connected, under the condition of force, the punching tool 8 will continue to move downward relative to the pressure block 6 to achieve the punching process of the sealing strip. The pressure block 6 and the punching tool 8 of the present application use the same punching cylinder 7, which, on the one hand, reduces the setting of the power device, reduces the equipment cost, and reduces the equipment volume. On the other hand, the movement trajectory of the pressure block 6 and the punching tool 8 remains completely consistent, thereby improving the punching processing accuracy.

[0037] Embodiment 2, as Figures 1 to 3 As shown, a punching cylinder 7 is fixedly mounted on the punching seat 2, a transmission shaft of the punching cylinder 7 is connected to a power block 9, the punching tool 8 is fixedly connected to the power block 9, and the pressure block 6 is connected to the power block 9 through a spring assembly 10. In the present application, in order to facilitate the movement of multiple components by a single punching cylinder 7 power, a power block 9 is added, thereby increasing the connection space.

[0038] In the present application, the punching tool 8 is fixedly connected to the power block 9, that is, the movements of the punching tool 8 and the power block 9 are synchronized. The pressing block 6 is connected to the power block 9 through the spring assembly 10, realizing the floating connection of the pressing block 6, that is, the pressing of the pressing block 6 on the sealing strip is a process of gradually increasing pressure. When the punching tool 8 punches the sealing strip, the pressure of the pressing block 6 on the sealing strip reaches the maximum.

[0039] The punching tool 8 is attached to the rear side of the pressing block 6, and the punching tool 8 moves downward along the rear side of the pressing block 6 to cause relative displacement. In the present application, the punching tool 8 is further attached to the rear side of the pressing block 6 to limit the movement trajectory of the punching tool 8, thereby ensuring that the movement trajectory of the punching tool 8 is reliable, thereby improving the punching accuracy.

[0040] The spring assembly 10 comprises at least two linear springs of the same structure, and there is a distance between two adjacent linear springs. The at least two linear springs of the same structure are used to achieve a stable, reliable and floating motion state of the pressing block 6.

[0041] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0042] Embodiment three, as Figures 1 to 3 As shown, an embedding block 11 is movably arranged in the mounting seat 3, and the embedding block 11 includes an embedding portion adapted to the inner space of the sealing strip, and the embedding portion can be embedded in the sealing strip. The sealing strip is generally not a completely solid structure, and the embedding block 11 well simulates the installation condition of the sealing strip, fills the gap in the sealing strip, avoids deformation of the sealing strip during punching, and improves the punching accuracy of the sealing strip.

[0043] The mounting seat 3 is provided with a first transverse slideway 12, and the embedding block 11 is installed in the first transverse slideway 12. The embedding block 11 moves along the first transverse slideway 12 when a force is applied, and the first transverse slideway 12 is arranged perpendicular to the channel. That is, the embedding block 11 moves in the first transverse slideway 12, and can be embedded into the sealing strip from the side where the sealing strip opening is located, or partially withdrawn from the sealing strip.

[0044] A first longitudinal channel 13 is provided in the mounting seat 3, and the first longitudinal channel 13 passes through the embedded block 11. The first longitudinal channel 13 is arranged perpendicular to the top surface of the inclined pad 4. A first guide rod 14 is provided in the first longitudinal channel 13, and the first guide rod 14 moves up and down to drive the embedded block 11 to move along the first transverse channel.

[0045] The power of the embedded block 11 comes from the up and down movement of the first guide rod 14. Specifically, the top of the first guide rod 14 is connected to the power block 9, and the up and down movement of the power block 9 drives the first guide rod 14 to move up and down. In this application, the punching cylinder 7 drives the three parts to move up and down synchronously. Its power is fully utilized, reducing the use of power cylinders, saving manufacturing costs and space.

[0046] A second longitudinal channel 15 is provided in the mounting seat 3, and the second longitudinal channel 15 is provided perpendicular to the top surface of the inclined pad 4. A support block 16 is movably installed in the second longitudinal channel 15, and the support block 16 moves along the second longitudinal channel 15 when subjected to force. A groove adapted to the bottom of the sealing strip is provided on the top surface of the support block 16, and a support portion extending into the inner side of the lip of the sealing strip is also provided on the support block 16, and the embedded portion is opposite to the support portion.

[0047] In the present application, the embedding block 11 and the support block 16 form a support for the left and right sides and the bottom of the sealing strip. When the embedding portion is inserted into the sealing strip, the embedding portion moves toward the support portion, thus achieving a left and right clamping. In the present application, the sealing strip is fully stably and reliably installed by the pressing block 6, the embedding block 11, and the support block 16, thereby improving the processing accuracy of the sealing strip.

[0048] The movement of the support block 16 in the longitudinal direction realizes that a large space in the channel is provided for the sealing strip to extend into, while a small space in the channel clamps the sealing strip.

[0049] A second transverse channel 17 is arranged in the mounting seat 3, and the second transverse channel 17 passes through the support block 16. The second transverse channel 17 is arranged perpendicular to the channel. A second guide rod 18 is arranged in the second transverse channel 17, and the second guide rod 18 moves left and right to drive the support block 16 to move along the second longitudinal channel 15.

[0050] The present application further includes a lateral cylinder 19, which is connected to the second guide rod, and the lateral cylinder 19 drives the second guide rod to move along the second longitudinal channel 15. A protrusion 20 is provided on the top of the second guide rod 18, and when the protrusion 20 moves into the support block 16, the support block 16 moves upward to support and clamp the sealing strip.

[0051] At least two guide seats 21 are also installed on the base plate 1 . There is a distance between the guide seats 21 , so that the guide seats 21 can well support the sealing strip.

[0052] One of the guide seats 21 is connected to the introduction end of the mounting seat 3, and a guide block is provided on the guide seat 21. The guide block is provided with a guide portion, which is adapted to the inner space of the sealing strip. One end of the guide portion extends into the channel and connects with the embedded portion.

[0053] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0054] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A punching mechanism with floating end, characterized in that: The invention comprises a base plate (1), a punching seat (2) and a mounting seat (3), wherein the mounting seat (3) is mounted on the base plate (1) via an inclined pad (4), wherein a channel for inserting a sealing strip is arranged in the mounting seat (3), and the channel is arranged parallel to the base plate (1), wherein the punching seat (2) is mounted above the mounting seat (3), and an acute angle is formed between the punching seat (2), the mounting seat (3) and the base plate (1), wherein a punching tool (8) connected to a punching cylinder (7) and a pressure block (6) floatingly connected to the punching cylinder (7) are mounted on the punching seat (2), and the bottom surface of the pressure block (6) is located below the punching tool (8).

2. A punching mechanism with floating end according to claim 1, characterized in that: A punching cylinder (7) is fixedly mounted on the punching seat (2); a transmission shaft of the punching cylinder (7) is connected to a power block (9); the punching tool (8) is fixedly connected to the power block (9); and the pressure block (6) is connected to the power block (9) via a spring assembly (10).

3. The punching mechanism with floating end according to claim 1, characterized in that: The punching tool (8) is attached to the rear side of the pressing block (6), and the punching tool (8) moves downward along the rear side of the pressing block (6) to cause relative displacement.

4. The punching mechanism with floating end according to claim 2, characterized in that: The spring assembly (10) comprises at least two linear springs with the same structure, and there is a distance between two adjacent linear springs.

5. The punching mechanism with floating end according to claim 1, characterized in that: An embedding block (11) is movably arranged in the mounting seat (3), and the embedding block (11) comprises an embedding portion adapted to the inner space of the sealing strip, and the embedding portion can be embedded in the sealing strip.

6. The punching mechanism with floating end according to claim 5, characterized in that: The mounting seat (3) is provided with a first transverse slideway (12), the embedded block (11) is installed in the first transverse slideway (12), and the embedded block (11) moves along the first transverse slideway (12) when a force is applied, and the first transverse slideway (12) is arranged perpendicular to the channel.

7. The punching mechanism with floating end according to claim 6, characterized in that: A first longitudinal channel (13) is provided in the mounting seat (3), the first longitudinal channel (13) passes through the embedding block (11), the first longitudinal channel (13) is arranged perpendicular to the top surface of the inclined pad (4), a first guide rod (14) is provided in the first longitudinal channel (13), and the first guide rod (14) moves up and down to drive the embedding block (11) to move along the first transverse channel.

8. The punching mechanism with floating end according to claim 1, characterized in that: A second longitudinal channel (15) is provided in the mounting seat (3), and the second longitudinal channel (15) is provided perpendicular to the top surface of the inclined pad (4). A support block (16) is movably installed in the second longitudinal channel (15), and the support block (16) moves along the second longitudinal channel (15) when subjected to force. A groove is provided on the top surface of the support block (16) that is adapted to the bottom of the sealing strip. The support block (16) is also provided with a support portion that extends into the inner side of the lip of the sealing strip, and the embedded portion is opposite to the support portion.

9. The punching mechanism with floating end according to claim 8, characterized in that: A second transverse channel (17) is arranged in the mounting seat (3), the second transverse channel (17) passes through the support block (16), the second transverse channel (17) is arranged perpendicular to the channel, a second guide rod (18) is arranged in the second transverse channel (17), and the second guide rod (18) moves left and right to drive the support block (16) to move along the second longitudinal channel (15).

10. The punching mechanism with floating end according to claim 8, characterized in that: At least two guide seats (21) are also mounted on the base plate (1), and there is a spacing between the guide seats (21) and the guide seats (21), so that the guide seats (21) can well support the sealing strip.

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