A free combination type follow-up punching device

Abstract

This utility model discloses a freely combinable follow-up punching device, including a punching unit, a feeding unit, and a synchronous follow-up unit. The punching unit and the synchronous follow-up unit are arranged sequentially along the Z-axis. The synchronous follow-up unit includes multiple follower springs and support rollers, with one end of the follower spring connected to the punching unit and the other end connected to the feeding unit. The multiple support rollers extend along the X-axis and are spaced apart along the Z-axis, rolling in contact with the lower surface of the feeding unit to support the punching unit. The follow-up punching device provided by this utility model, through multiple freely movable and combinable punching modules and synchronous follow-up units, cooperates with forming equipment and the feeding unit to continuously process profile punching. The punches of each punching module are relatively stationary when in contact with the profile, thus enabling multiple holes to be punched simultaneously on the profile, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a freely combinable follow-up punching device, belonging to the field of profile processing technology. Background Technology

[0002] Air conditioning units are assembled from processed profiles. The size of the unit varies depending on the functional requirements. The number and spacing of holes to be machined on profiles of different sizes also differ. Traditional drilling and punching equipment is inefficient and lacks precision, necessitating a more efficient manufacturing process.

[0003] Chinese invention patent ZL 202311701395.3 discloses a multi-station processing system and a production line for straight profiles. This processing system processes straight profiles fed along their length at multiple stations along their length. It includes several punching units and a control unit. The punching units are spaced apart along the feed direction of the straight profile, and each punching unit includes a punching mechanism. Under the control of the control unit, the punching mechanism moves synchronously with the straight profile and performs punching operations synchronously. The multi-station processing system for straight profiles adopts a follow-up punching method; while the punching mechanism performs the punching action, the main body of the punching mechanism moves synchronously with the straight profile.

[0004] Similarly, existing technologies all use servo motors, synchronous belts, chains and sprockets, ball screws, or rack and pinion mechanisms to drive each punching unit for follow-up movement, resulting in complex structures and high costs. Since each punching unit moves independently, the spacing control effect is not ideal. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a freely combinable follow-up punching device.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0007] According to an embodiment of this utility model, a freely combinable follow-up punching device is provided, comprising a punching unit, a material pulling unit, and a synchronous follow-up unit; wherein...

[0008] The punching unit and the synchronous follower unit are arranged sequentially along the Z direction;

[0009] The synchronous follow-up unit includes multiple follow-up springs and support rollers; one end of the follow-up spring is connected to the punching unit, and the other end is connected to the material pulling unit;

[0010] Multiple support rollers extend along the X direction and are spaced apart along the Z direction, making rolling contact with the lower surface of the pulling unit to support the punching unit.

[0011] Preferably, the punching unit includes multiple punching modules, a bottom rail, a pitch control module, and a controller; wherein...

[0012] Multiple punching modules are spaced apart in the limiting grooves on the upper surface of the bottom rail; the variable pitch module is located on one side of the bottom rail and can move along the Z direction; the bottom rail is connected to the follower spring.

[0013] The controller is electrically connected to the pitch module.

[0014] Preferably, the punching module includes a base, and a lifting wedge groove is provided on one surface of the base; the lifting wedge groove is a groove structure extending to one side, and its upper surface is inclined downward.

[0015] The pitch control module includes a lifting module and a lifting wedge; wherein...

[0016] The lifting wedge is disposed at one end of the lifting module and can reciprocate along the X direction; the wedge structure of the lifting wedge is adapted to the lifting wedge groove and is designed to lift the structure of the punching module through the lifting action of the inclined surface.

[0017] Preferably, the punching module further includes a punch die, a guide module, a punch, a pressure cap, and a punch spring; wherein...

[0018] The base is a structural support component for the punching module; the axes of the punch, the guide module, and the die are coaxial and arranged sequentially from top to bottom; the die and the guide module are connected to the base;

[0019] The pressure cap is rotatably connected to the upper end of the punch. One end of the punch spring is connected to the pressure cap, and the other end is connected to the base and surrounds the punch.

[0020] Preferably, a chip removal groove is provided on one surface of the base; wherein...

[0021] The chip removal groove is a groove structure that extends to one side, with its lower surface inclined upwards;

[0022] The chip removal groove is located below the die, and the die and the chip removal groove are connected vertically, designed so that the punch can pass through the die and enter the chip removal groove.

[0023] Preferably, the punching module further includes a limiting plate; wherein...

[0024] The limiting plate is a plate structure, with its lower end connected to the upper end of the base and its upper end extending upward; the limiting plate and the pressure cap have mutually compatible groove and stop structures, designed to limit the stroke of the pressure cap.

[0025] Preferably, the bottom rail includes a bottom rail body, a slide rail, and a rack; wherein...

[0026] The bottom rail body is a rectangular structure extending along the Z direction; the bottom rail body is connected to the follower spring;

[0027] The slide rail and the rack are disposed on one side of the bottom rail body, parallel to each other, and extend along the Z direction; the rack is located on the upper side of the slide rail, with the teeth facing upward.

[0028] Preferably, the bottom rail further includes a fastening device;

[0029] The fastening device is designed to fix the punching module to the bottom rail; the fastening device is electrically connected to the controller.

[0030] Preferably, the pitch-changing module further includes a support plate, a slider, a servo motor, and a pitch-changing gear; wherein...

[0031] The support plate is a plate structure with an L-shaped cross-section parallel to the Z direction; the slider is located below one surface of the support plate, extends along the Z direction, and is fitted onto the slide rail;

[0032] The servo motor is disposed on the Z-direction proximal end of another surface of the support plate, and its output end passes through the support plate and is connected to the variable pitch gear; the servo motor is electrically connected to the controller; the variable pitch gear meshes with the rack.

[0033] The lifting module is located at the Z-direction distal end of the support plate, and a portion of it is capable of reciprocating along the X-direction on one side of the support plate.

[0034] Preferably, the material pulling unit includes a base frame, profile support rollers, and a drive pressure roller; wherein...

[0035] The base frame is a support frame structure and is connected to the follower spring;

[0036] The profile roller is rotatably mounted on the base frame; the drive roller is driven by a motor and is rotatably mounted on the base frame.

[0037] The drive roller and the profile roller are designed to cooperate with each other to continuously pull the profile along the Z-axis.

[0038] Compared with existing technologies, the follow-up punching device provided by this utility model can move with the profile, and the punches of each punching module are relatively stationary when in contact with the profile. Therefore, multiple holes can be punched on the profile simultaneously, improving production efficiency. The spacing between the holes can be freely adjusted to meet the diverse requirements of different products. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a freely combinable follow-up punching device in an embodiment of the present utility model;

[0040] Figure 2 for Figure 1 A partial three-dimensional structural diagram of the follow-up punching device in region A;

[0041] Figure 3 for Figure 2 A schematic diagram of the Z-axis structure of the follow-up punching device. Detailed Implementation

[0042] The technical content of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] The technical concept in this embodiment of the invention is to allow the punching unit and the profile to move together, with multiple punching modules punching and shearing simultaneously to form multiple holes in one pass. Specifically, after the punch of the punching module engages with the profile, the punching unit is driven by the profile to move together. After completing the punching, it disengages from the profile and returns to its original position under the drive of the follower spring, ready for the next punching.

[0044] In the accompanying drawings of this utility model embodiment, the longitudinal direction of the profile is defined as the Z-direction, the direction of profile movement is defined as the Z-direction positive direction (far end), the vertical direction is defined as the Y-direction, the vertical upward direction is defined as the Y-direction positive direction, and the horizontal direction perpendicular to the Z-direction and the Y-direction is defined as the X-direction.

[0045] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a freely combinable follow-up punching device, including a punching unit 1, a material pulling unit 2, and a synchronous follow-up unit 3. The forming equipment 100, the punching unit 1, and the synchronous follow-up unit 3 are arranged sequentially along the Z-direction. The forming equipment 100 continuously outputs profiles 200, and the material pulling unit 2 pulls the profile 200 from the Z-direction to the far end, providing a material pulling speed matching the output speed of the forming equipment 100, thus providing power for the continuous and uninterrupted output of profiles by the forming equipment 100. The punching unit 1 is arranged along the longitudinal direction of the profile 200, and the synchronous follow-up unit 3 keeps the punching unit 1 relatively stationary during the punching of the profile 200. The forming equipment 100 is a profile extrusion forming device. Optionally, the forming equipment 100 is a strip uncoiling device.

[0046] like Figure 2 and Figure 3As shown, the punching unit 1 includes multiple punching modules 11, a bottom rail 12, a pitch control module 13, and a controller (not shown in the figure). Each punching module 11 is arranged along the bottom rail 12 to meet the design requirements of the punched profile 200. The pitch control module 13 is mounted on the bottom rail 12 and can move the position of each punching module 11 on the bottom rail 12 according to design requirements.

[0047] The punching module 11 includes a base 111, a die 112, a guide module 113, a punch 114, a pressure cap 115, and a punch spring 116. The base 111 serves as the structural support for the punching module 11, and its cross-section perpendicular to the Z-axis is approximately C-shaped. The space enclosed by the base 111 forms the punching working area 11a. The die 112 is positioned on its lower surface, the guide module 113 on its upper surface, and the punch 114 is positioned above the guide module 113. The punch 114 passes through a portion of the base 111, its axis is vertical, and the axes of the punch 114, guide module 113, and die 112 are coaxial, arranged sequentially from top to bottom. The pressure cap 115 is rotatably connected to the upper end of the punch 114. One end of the punch spring 116 is connected to the pressure cap 115, and the other end is connected to the base 111, surrounding the punch 114.

[0048] The base 111 is provided with a chip removal groove 117 and a lifting wedge groove 118. The chip removal groove 117 is located on the right surface of the base 111 and is a groove structure extending to the left, with its lower surface inclined upwards and to the left to discharge blank material. The chip removal groove 117 is located below the die 112. Preferably, the base 111 has a through structure that vertically connects the guide module 113, the blanking working area 11a, the die 112, and the chip removal groove 117, allowing the punch 114 to pass through the die 112 and enter the chip removal groove 117, feeding the blank material 200 into the chip removal groove 117 and then discharging it from the punching module 11.

[0049] During operation, the profile 200 to be processed is located in the punching working area 11a. The punching drive device (not shown in the figure) drives the pressure cap 115 and the punch 114 to move downwards, compressing the punch spring 116. The lower end of the punch 114 passes through the guide module 113, the profile 200, and the die 112, completing the punching and feeding the blank into the chip discharge groove 117 for discharge. After punching is completed, the punch spring 116 drives the pressure cap 115 and the punch 114 to reset. Optionally, the punching drive device can be a cam mechanism, a cylinder mechanism, a hydraulic cylinder mechanism, or an electric cylinder mechanism, etc. Preferably, the guide module 113 and the die 112 are adapted to the profile 200.

[0050] The lifting wedge groove 118 is located on the left surface of the base 111. It is a groove structure that extends to the right, and its upper surface is inclined to the lower right to accommodate the pitch module 13.

[0051] Preferably, the punching module 11 further includes a limiting plate 119. The limiting plate 119 is a plate structure, with its lower end connected to the upper end of the base 111 and its upper end extending upward. The limiting plate 119 and the pressure cap 115 have mutually compatible groove and stop structures, which can hook with each other to limit the stroke of the pressure cap 115 and prevent the pressure cap 115 and the punch 114 from coming out of the punching unit 1.

[0052] The base rail 12 includes a base rail body 121, a slide rail 122, and a rack 123. The base rail body 121 is a rectangular structure extending along the Z-direction, with a limiting groove 124 on its upper surface. The slide rail 122 and rack 123 are located on the left side of the base rail body 121, parallel to each other, and extending along the Z-direction. The rack 123 is located above the slide rail 122, with its teeth facing upwards. The limiting groove 124 is a groove structure extending along the Z-direction, adapted to the lower surface of the base 111. The base 111 can move or be fixed along the limiting groove 124.

[0053] Preferably, the bottom rail 12 further includes a fastening device 125, which is adapted to the base 111 and can fasten the punching module 11, thereby fixing the punching module 11 on the bottom rail 12. The fastening device 125 is electrically connected to the controller.

[0054] The variable pitch module 13 includes a support plate 131, a slider 132, a servo motor 133, a variable pitch gear 134, a lifting module 135, and a lifting wedge 136. The support plate 131 is a plate structure with an approximately L-shaped cross-section parallel to the Z-axis. The slider 132 is located below the right surface of the support plate 131, extending along the Z-axis and adapting to the slide rail 122. The servo motor 133 is located at the near Z-axis end of the left surface of the support plate 131, with its output end passing through the support plate 131 and connecting to the variable pitch gear 134, which is adapted to the rack 123. The lifting module 135 is located at the far Z-axis end of the support plate 131, and its portion can reciprocate along the X-axis on the right side of the support plate 131. Optionally, the lifting module 135 is a piston structure. The lifting wedge 136 is a wedge mechanism located at the right end of the lifting module 135 and can reciprocate along the X-axis under the drive of the lifting module 135. The lifting wedge 136 has a wedge structure that fits into the lifting wedge groove 118, and its upper surface is inclined to the lower right. The servo motor 133 is electrically connected to the controller. The lifting module 135 is connected to an external power source.

[0055] The slider 132 is mounted on the slide rail 122, allowing the pitch-changing module 13 to move along the slide rail 122. The pitch-changing gear 134 meshes with the rack 123, and the servo motor 133 provides the moving power for the pitch-changing module 13 through the pitch-changing gear 134. The punching module 11 is fixed to the bottom rail 12 by the fastening device 125. When it is necessary to change the position of a punching module 11, the fastening device 125 releases the fixed state of the punching module 11, and the lifting wedge 136 is inserted into the lifting wedge groove 118. Through the lifting action of the inclined plane, the punching module 11 is lifted. The controller controls the servo motor 133 to rotate, moving the punching module 11 along the bottom rail 12. When the punching module 11 reaches the desired position, the above steps are reversed to fix the punching module 11 in the new position.

[0056] The material pulling unit 2 includes a base frame 21, profile rollers 22, and a drive roller 23. The base frame 21 is a support frame structure, and the profile rollers 22 are rotatably mounted on the base frame 21. The drive roller 23 is driven by a motor and is rotatably mounted on the base frame 21. The drive roller 23 and the profile rollers 22 work together to continuously pull the profile 200 along the Z-axis.

[0057] The synchronous follower unit 3 includes multiple follower springs 31 and support rollers 32. The multiple follower springs 31 are arranged along the Z-axis, with one end connected to the base frame 21 (punching unit 1) and the other end connected to the bottom rail 12 (pulling unit 2). The multiple support rollers 32 extend along the X-axis and are spaced apart along the Z-axis, making rolling contact with the lower surface of the bottom rail 12 (pulling unit 2) to support the punching unit 1. When the punching unit 1 moves towards the pulling unit 2, it compresses the follower springs 31, accumulating potential energy. When the tension of the punching unit 1 is lost, the follower springs 31 drive it back to its original position. Preferably, the support rollers 32 are maintained in their spatial position by an external support structure, and the bottom rail 12 is restricted by an external limiting structure to its X-axis movement freedom and Y-axis rotational freedom.

[0058] During operation, the forming equipment 100 and the pulling unit 2 continuously output profiles 200. The moment the punch 114 and the die 112 engage with the profile 200, the punching unit 1 and the profile 200 form a fixed structure. Therefore, the punching unit 1 moves towards the pulling unit 2 along with the profile 200, and the follower spring 31 compresses and stores energy. At this time, the punching unit 1 and the profile 200 are relatively stationary, so the spacing between each punching die 11 is the spacing between the punched holes. Multiple punches with different spacings can be processed in one punching operation, and then subsequent equipment cuts the profile to the required length according to the punching position. The number of punches completed in one operation matches the number of punching dies 11 in motion, and the positional tolerance of each hole can reach ±0.2mm. After punching is completed, the punch 114 disengages from the profile 200, the punching unit 1 loses its tension, and returns to its original position under the action of the synchronous follower unit 3.

[0059] The variable pitch module 13 is driven by the servo motor 133 to move both the variable pitch module 13 and the punching module 11. When the controller receives a task command, it analyzes the collected position of the punching module 11 and the punching position to be executed, automatically calculates the displacement distance, and drags each punching module 11 to the designated position. In the actual production process, the time wasted due to system reset is eliminated, and the module directly switches from the last processing position to the position to be used using the optimal path.

[0060] The control logic of the follow-up punching device provided in this embodiment of the utility model is as follows: the first punching module (M1), the second punching module (M2) to the nth punching module (Mn) are arranged according to the actual number used. Each punching module 11 corresponds to the initial position Z1, Z2 to Zn on the bottom rail 12. After the hole position information C1, C2 to Cn of the product is identified, the variable pitch module 13 sequentially drags M1 from the position of Z1 to C1, drags M2 from the position of Z2 to C2, and drags Mn from Zn to Cn.

[0061] After changing the product model, the controller re-identifies the product's hole position parameters. The system will compare and calculate the number of holes in the product. If the comparison is negative, the system will drive the intelligent pitch module to drag Mn from position Cn to Zn. If the comparison is zero, the system will drive the intelligent pitch module to directly drag M1 from C1 to ΔC1, C2 to ΔC2, and Cn to ΔCn. If the comparison is positive, the system will drive the intelligent pitch module to directly drag M1 from C1 to δC1, C2 to δC2, and Cn to δCn. Modules with insufficient punching positions will be supplemented from the initial position by Zn+1 to Cn+1.

[0062] In summary, the follow-up punching device provided in this embodiment of the invention, through multiple freely movable and combinable punching modules and synchronous follow-up units, cooperates with forming equipment and material pulling unit to continuously process profile punching, punching out all the holes in each profile in a single pass. Furthermore, the spacing between the holes is controllable and adjustable, enabling processing and production with any number of holes and any spacing. The punching modules are moved parametrically, and the position of any module is automatically switched, ensuring precision and efficiency. When integrated with an extrusion profile production line, perforated profiles for air conditioning units can be obtained.

[0063] It should be noted that the above embodiments are merely illustrative examples. The technical solutions of the various embodiments can be combined, and all are within the protection scope of this utility model.

[0064] The terms “left,” “right,” “up,” “down,” “horizontal,” “vertical,” “top,” and “bottom,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0066] The above provides a detailed description of the freely combinable follow-up punching device provided by this utility model. Any obvious modifications made to this utility model by those skilled in the art without departing from its essential content will constitute an infringement of the patent rights of this utility model and will incur corresponding legal liability.

Claims

1. A free combination follow-up piercing apparatus characterized by It includes a punching unit, a drawing unit, and a synchronous follow-up unit; among which, The punching unit and the synchronous follower unit are arranged sequentially along the Z direction; The synchronous follow-up unit includes multiple follow-up springs and support rollers; one end of the follow-up spring is connected to the punching unit, and the other end is connected to the material pulling unit; Multiple support rollers extend along the X direction and are spaced apart along the Z direction, making rolling contact with the lower surface of the pulling unit to support the punching unit.

2. The follow-up piercing apparatus according to claim 1, wherein The punching unit includes multiple punching modules, a bottom rail, a pitch control module, and a controller; wherein... Multiple punching modules are spaced apart in the limiting grooves on the upper surface of the bottom rail; the pitch-changing module is located on one side of the bottom rail and can move along the Z direction; the bottom rail is connected to the follower spring; the controller is electrically connected to the pitch-changing module.

3. The follow-up punching device as described in claim 2, characterized in that: The punching module includes a base, and a lifting wedge groove is provided on one surface of the base; the lifting wedge groove is a groove structure extending to one side, and its upper surface is inclined downward. The variable pitch module includes a lifting module and a lifting wedge; wherein, the lifting wedge is disposed at one end of the lifting module and is capable of reciprocating along the X direction; the wedge structure of the lifting wedge is adapted to the lifting wedge groove and is designed to lift the structure of the punching module through the lifting action of the inclined surface.

4. The follow-up piercing apparatus according to claim 3, wherein The punching module also includes a die, a guide module, a punch, a pressure cap, and a punch spring; wherein... The base is a structural support component for the punching module; the axes of the punch, the guide module, and the die are coaxial and arranged sequentially from top to bottom; the die and the guide module are connected to the base; The pressure cap is rotatably connected to the upper end of the punch. One end of the punch spring is connected to the pressure cap, and the other end is connected to the base and surrounds the punch.

5. The follow-up piercing apparatus according to claim 4, wherein A chip removal groove is provided on one surface of the base; wherein, the chip removal groove is a groove structure extending to one side, and its lower surface is inclined upward; the chip removal groove is located below the die, and the die and the chip removal groove are connected in the vertical direction, designed so that the punch can pass through the die and enter the chip removal groove.

6. The follow-up piercing apparatus according to claim 4, wherein The punching module also includes a limiting plate; wherein... The limiting plate is a plate structure, with its lower end connected to the upper end of the base and its upper end extending upward; the limiting plate and the pressure cap have mutually compatible groove and stop structures, designed to limit the stroke of the pressure cap.

7. The follow-up piercing apparatus according to claim 2, wherein The bottom rail includes a bottom rail body, a slide rail, and a rack; wherein... The bottom rail body is a rectangular structure extending along the Z direction; the bottom rail body is connected to the follower spring; the slide rail and the rack are arranged on one side of the bottom rail body, parallel to each other, and extending along the Z direction; the rack is located on the upper side of the slide rail, with the teeth facing upwards.

8. The follow-up piercing apparatus according to claim 7, wherein The bottom rail also includes a fastening device; The fastening device is designed to fix the punching module to the bottom rail; the fastening device is electrically connected to the controller.

9. The follow-up piercing apparatus according to claim 3, wherein The pitch-changing module also includes a support plate, a slider, a servo motor, and a pitch-changing gear; wherein... The support plate is a plate structure with an L-shaped cross-section parallel to the Z direction; the slider is located below one surface of the support plate, extends along the Z direction, and is fitted onto the slide rail; The servo motor is disposed on the Z-direction proximal end of another surface of the support plate, and its output end passes through the support plate and is connected to the variable pitch gear; the servo motor is electrically connected to the controller; the variable pitch gear meshes with the rack. The lifting module is located at the Z-direction distal end of the support plate, and a portion of it is capable of reciprocating along the X-direction on one side of the support plate.

10. The follow-up piercing apparatus according to claim 1, wherein The material pulling unit includes a base frame, profile support rollers, and drive pressure rollers; wherein... The base frame is a support frame structure and is connected to the follower spring; The profile roller is rotatably mounted on the base frame; the drive roller is driven by a motor and is rotatably mounted on the base frame. The drive roller and the profile roller are designed to cooperate with each other to continuously pull the profile along the Z-axis.

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