A carrier suction device

Abstract

The utility model relates to a kind of carrier suction device, comprising: substrate, it is provided with at least two position adjusting components;Suction mechanism, it is configured as at least two and respectively through position adjusting component movably connected on the both sides of the carrier to be processed, it includes: supporting plate, positioning plate, suction plate and pressure relief valve, the side of the supporting plate is movably connected on substrate through position adjusting component, the other side of the supporting plate is positioned plate, the suction plate is connected with supporting plate by positioning plate, the suction plate is opened with multiple suction flow channels, the suction flow channel is circumscribed with negative pressure component, the suction plate is opened with the pressure relief passage that multiple suction flow channels are all communicated, the pressure relief valve is communicated with pressure relief passage.The utility model is set as above, the automatic regulation of negative pressure in suction flow channel is realized.Product is provided with reliable negative pressure protection, to prevent damage product.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to a carrier adsorption device. Background Technology

[0002] In industrial production, products to be processed often need to be placed on carriers for circulation or processing. To prevent the products from shifting or deviating during movement or processing, an adsorption mechanism is needed to fix the products to the carrier.

[0003] However, existing carrier adsorption devices have the following problems: 1. Uneven adsorption force distribution: The independent design of multiple adsorption channels leads to large pressure differences in different areas of the adsorption surface, which can easily cause excessive local stress on the product and deformation, or insufficient local adsorption force, resulting in product loosening or displacement. 2. Lack of an effective negative pressure regulation mechanism: When the negative pressure provided by the negative pressure component is too high, the product surface can be easily damaged due to excessive adsorption force, especially for fragile, easily deformable, and thin precision products, this problem is more prominent; while when the negative pressure is unstable, it is difficult to maintain a stable adsorption effect. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problems of uneven distribution of adsorption force and lack of effective negative pressure adjustment mechanism in the existing carrier adsorption device, thereby providing a carrier adsorption device.

[0005] To solve the above-mentioned technical problems, this utility model provides a carrier adsorption device, comprising:

[0006] A substrate having at least two position adjustment components;

[0007] An adsorption mechanism, configured as at least two and movably connected to both sides of a workpiece via a position adjustment assembly, includes: a support plate, a positioning plate, an adsorption plate, and a pressure relief valve. One side of the support plate is movably connected to a base plate via the position adjustment assembly. The positioning plate is located on the other side of the support plate. The adsorption plate is connected to the support plate via the positioning plate. The adsorption plate has multiple adsorption channels, and a negative pressure assembly is connected to each adsorption channel. The adsorption plate has pressure relief channels that are all connected to the multiple adsorption channels, and the pressure relief valve is connected to the pressure relief channels.

[0008] In one embodiment of this utility model, the adsorption plate has an adsorption space, and the plurality of adsorption channels are all connected to one side of the adsorption space, and the pressure relief channel is connected to the other side of the adsorption space.

[0009] In one embodiment of this utility model, the adsorption plate is provided with a negative pressure channel communicating with the adsorption space, and the negative pressure component is connected to the adsorption space through the negative pressure channel.

[0010] In one embodiment of this utility model, the adsorption plate is further provided with a flow guiding space, the size of which is smaller than the size of the adsorption space, and the adsorption space and the pressure relief channel are respectively connected to both sides of the flow guiding space.

[0011] In one embodiment of the present invention, the position adjustment component includes a displacement adjustment component and a precision adjustment component. The displacement adjustment component is used to adjust the position of the adsorption mechanism along the length direction of the carrier to be processed, and the precision adjustment component is used to control the relative position of the adsorption plate and the support plate.

[0012] In one embodiment of the present invention, the displacement adjustment component includes: at least two sets of sliding pairs, the at least two sets of sliding pairs being disposed on the base plate along the length direction of the carrier to be processed, and the support plate being connected to the output end of the sliding pairs.

[0013] In one embodiment of this utility model, the precision adjustment component includes: a first positioning member and a second positioning member, wherein the first positioning member is mounted on the support plate along a first direction and corresponds to the positioning plate, and the second positioning member is mounted on the positioning plate along a second direction and corresponds to the adsorption plate.

[0014] In one embodiment of the present invention, the support plate and the positioning plate are respectively provided with a first waist-shaped hole and a second waist-shaped hole extending in a first direction and a second direction, and the positioning plate and the adsorption plate are respectively provided with a first locking member and a second locking member adapted to the first waist-shaped hole and the second waist-shaped hole.

[0015] In one embodiment of this utility model, an avoidance space is provided between the adsorption plate and the positioning plate, the avoidance space is connected to the outside, and the pressure relief valve is located in the avoidance space.

[0016] In one embodiment of the present invention, the adsorption plate includes a bottom plate and a cover plate, the cover plate being detachably mounted on the bottom plate, and the cover plate and the bottom plate being sealed together.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] The present invention discloses a carrier adsorption device in which multiple adsorption channels on the adsorption plate cooperate with a negative pressure component to evenly distribute negative pressure to the adsorption surface, ensuring uniform adsorption force distribution on both sides of the product. This effectively avoids problems such as product deformation and loosening caused by uneven local force. Through the coordinated design of the pressure relief valve and pressure relief channel, automatic adjustment of the negative pressure within the adsorption channels is achieved. When the negative pressure is too high, the pressure relief valve automatically opens, allowing outside air to enter the adsorption channels through the pressure relief channel to reduce the pressure and prevent damage to the product due to excessive adsorption force. When the negative pressure drops to the target value, the pressure relief valve closes to maintain a stable adsorption force, providing reliable negative pressure protection for the product and thus preventing product damage. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the adsorption device of this utility model;

[0021] Figure 2 This is a cross-sectional view of the adsorption plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adsorption plate and positioning plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the support plate and the adsorption plate of this utility model;

[0024] Figure 5 This is a schematic diagram showing the positions of the carrier to be processed and the adsorption plate of this utility model.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Base plate; 2. Slider; 3. Slide rail; 4. First positioning element; 5. Second positioning element; 6. Adsorption plate; 61. Base plate; 62. Cover plate; 63. Adsorption channel; 64. Guide space; 65. Adsorption space; 66. Negative pressure channel; 67. Pressure relief channel; 68. Clearance space; 69. Pressure relief valve; 7. Support plate; 8. Positioning plate; 11. Guide plate; 12. Carrier to be processed. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Example

[0028] Reference Figures 1-5 As shown, the present invention provides a carrier adsorption device, comprising:

[0029] The substrate 1 is provided with at least two position adjustment components;

[0030] The adsorption mechanism, configured as at least two and movably connected to both sides of the carrier 12 to be processed via a position adjustment component, includes: a support plate 7, a positioning plate 8, an adsorption plate 6, and a pressure relief valve 69. One side of the support plate 7 is movably connected to the base plate 1 via the position adjustment component, the positioning plate 8 is disposed on the other side of the support plate 7, the adsorption plate 6 is connected to the support plate 7 via the positioning plate 8, the adsorption plate 6 has multiple adsorption channels 63, the adsorption channels 63 are externally connected to a negative pressure component, the adsorption plate 6 has pressure relief channels 67 that are all connected to the multiple adsorption channels 63, and the pressure relief valve 69 is connected to the pressure relief channels 67.

[0031] The present invention discloses a carrier adsorption device. Based on the length of the carrier 12 to be processed, the positions of the adsorption mechanisms on both sides are adjusted by a position adjustment component, so that the adsorption surfaces of the adsorption mechanisms are located at the target positions on both sides of the carrier. A negative pressure component provides negative pressure, which enters the adsorption space 65 through the negative pressure channel 66 of the adsorption plate 6, and is then evenly distributed to each adsorption channel 63, causing the adsorption surface of the adsorption plate 6 to generate a uniform adsorption force, thereby stably adsorbing the product to be adsorbed onto the carrier. Through the provided pressure relief valve 69 and pressure relief channel 67, when the negative pressure in the adsorption channel 63 is too high, the pressure relief valve 69 automatically opens, allowing outside air to enter the adsorption channel 63 through the pressure relief valve 69 and pressure relief channel 67, providing an additional gas inlet to the adsorption channel 63, thereby reducing the pressure in the adsorption channel 63. When the negative pressure in the adsorption channel 63 decreases to the target negative pressure, the pressure relief valve 69 closes to maintain the adsorption force.

[0032] Reference Figure 2 , Figure 3 As shown, the adsorption channels 63 of the adsorption plate 6 are arranged in an array, and the inlet end is chamfered to reduce airflow resistance. The negative pressure assembly consists of a vacuum generator, vacuum pipeline, and pressure sensor, and is connected to the interface of the adsorption plate 6 via a quick-connect coupling. The pipeline uses negative pressure resistant pipes to avoid deformation affecting airflow. The pressure relief valve 69 is a pilot-operated structure, connected to the pressure relief channel 67 via a flange. Its opening and closing pressure values ​​can be set by adjusting the spring preload.

[0033] Reference Figure 4As shown, based on the length characteristics of the carrier 12 to be processed, the position adjustment component is operated. In some embodiments, the position adjustment component is equipped with a drive unit and a braking unit. The drive unit drives the adsorption mechanisms on both sides to adjust synchronously to the target position, and the braking unit locks to ensure that the position remains unchanged. The negative pressure component is activated, and the negative pressure generated by the vacuum generator is introduced into the adsorption plate 6 through the pipeline. After flowing through the negative pressure channel 66 and the adsorption space 65 in sequence, it is evenly distributed to each adsorption channel 63, so that a stable negative pressure field is formed on the adsorption surface, forming a uniform adsorption force on the carrier 12 to be processed. In order to provide more accurate negative pressure, a pressure sensor is further provided, and the pressure relief valve 69 is configured as a controllable solenoid valve and electrically connected to the pressure sensor. When the pressure sensor detects that the negative pressure in the adsorption channel 63 exceeds the set threshold, the pressure relief valve 69 opens, and the outside air enters the adsorption channel 63 through the pressure relief valve 69 and the pressure relief channel 67 to balance the negative pressure to a safe range; after the negative pressure returns to the set value, the pressure relief valve 69 automatically closes.

[0034] Specifically, the pressure relief valve 69 adopts an electromagnetic control structure, which can automatically adjust the opening size through electrical signals to achieve precise dynamic control of the negative pressure in the adsorption channel 63. This solenoid valve mainly consists of a valve body, a proportional electromagnet, a valve core assembly, a return spring, a displacement sensor, and a sealing assembly. The overall design is modular, facilitating assembly and maintenance. Automatic control of the opening size is achieved through a closed-loop control logic of pressure detection, signal processing, and execution adjustment. A pressure sensor is installed within the adsorption space 65 to detect the negative pressure value in the adsorption channel 63 in real time and transmits the analog signal to the PLC controller. The controller has a built-in PID algorithm that compares the measured negative pressure value with a preset target negative pressure value to calculate the deviation. When the measured value is lower than the target value, the controller outputs a corresponding current signal based on the deviation. The current intensity is linearly related to the deviation. After receiving the current signal, the proportional electromagnet generates an electromagnetic force proportional to the current, overcoming the preload of the return spring and pushing the valve core to move axially. The valve core displacement is linearly related to the current signal, which in turn changes the flow area of ​​the valve port. The larger the opening, the more outside air enters the adsorption channel 63 per unit time, and the faster the negative pressure drops.

[0035] The carrier 12 is used to place the product to be processed, and the two sides of the product are adsorbed by an adsorption mechanism.

[0036] The displacement sensor detects the valve core position in real time and feeds it back to the controller. The controller compares the actual displacement with the theoretically calculated displacement. If there is a deviation, it compensates by fine-tuning the current signal to ensure that the opening degree is consistent with the target value. When the negative pressure in the adsorption channel 63 returns to the target value, the controller output current gradually decreases to 0, the reset spring pushes the valve core to reset, and the valve port closes.

[0037] Reference Figure 2As shown, the adsorption plate 6 has an adsorption space 65, and multiple adsorption channels 63 are connected to one side of the adsorption space 65. The pressure relief channel 67 is connected to the other side of the adsorption space 65. The negative pressure generated by the negative pressure assembly first enters the adsorption space 65, using the cavity volume to achieve pressure buffering and make the pressure in the space tend to be uniform. Subsequently, the negative pressure synchronously enters each adsorption channel 63, ensuring that the pressure difference at the inlet of each channel is controlled within a very small range, ensuring that the adsorption force at each point on the adsorption surface is consistent. When pressure relief is required, outside air enters the pressure relief channel 67 through the pressure relief valve 69 and is injected into the adsorption space 65 from the other side wall. With the help of the diffusion effect of the cavity, it quickly mixes with the internal negative pressure airflow, making the pressure in the entire space rise uniformly, thereby synchronously reducing the negative pressure value of each adsorption channel 63. This avoids excessive pressure fluctuations in local channels, reduces the impact of airflow pulsation on adsorption force, and can quickly adapt to load changes.

[0038] Continue to refer to Figure 2 As shown, the adsorption plate 6 has a negative pressure channel 66 connected to the adsorption space 65. The negative pressure assembly is connected to the adsorption space 65 through the negative pressure channel 66. The negative pressure channel 66 is a through-hole. One end of the channel is a connection port with a standard tapered pipe thread and a sealing gasket. It is threaded to the pipe joint of the negative pressure assembly to ensure no leakage at the connection. The other end is connected to the top center area of ​​the adsorption space 65. The channel axis coincides with the center line of the adsorption space 65, so that the negative pressure can diffuse evenly in all directions after entering the space.

[0039] The adsorption plate 6 also has a flow guiding space 64, the size of which is smaller than that of the adsorption space 65. The adsorption space 65 and the pressure relief channel 67 are respectively connected to both sides of the flow guiding space 64. The flow guiding space 64 is a small cavity, the height of which is about one-third of that of the adsorption space 65. Outside air enters the flow guiding space 64 through the pressure relief channel 67. The flow guiding space 64 plays a rectifying role in the turbulent airflow, making the airflow velocity distribution more uniform. Then, it is smoothly injected into the adsorption space 65 through the transition section, avoiding sudden pressure changes in the adsorption space 65 due to airflow impact.

[0040] Reference Figure 1 , Figure 4 As shown, the position adjustment component includes a displacement adjustment component and a precision adjustment component. The displacement adjustment component is used to adjust the position of the adsorption mechanism along the length direction of the carrier 12 to be processed, and the precision adjustment component is used to control the relative position of the adsorption plate 6 and the support plate 7.

[0041] Specifically, the displacement adjustment assembly includes at least two sets of sliding pairs, which are arranged on the base plate 1 along the length direction of the carrier 12 to be processed. The support plate 7 is connected to the output end of the sliding pairs. The sliding pairs adopt a linear slide rail 3 and slider 2 structure. At least two sets of slide rails 3 are arranged parallel to each other along the length direction of the base plate 1. The spacing between the slide rails 3 is determined according to the width of the support plate 7 to ensure support balance. The bottom of the support plate 7 is engaged with the upper surface of the slider 2 through a positioning step and is fastened with bolts. There is damping between the slide rail 3 and the slider 2 to prevent the support plate 7 from sliding after it stops.

[0042] To improve positioning and guiding accuracy, guide plates 11 are provided on the support plate 7 and the positioning plate 8 respectively. Based on this, the positioning plate 8 and the adsorption plate 6 are respectively provided with corresponding guide grooves.

[0043] The precision adjustment assembly includes a first positioning element 4 and a second positioning element 5. The first positioning element 4 is mounted on the support plate 7 along a first direction, corresponding to the positioning plate 8. The second positioning element 5 is mounted on the positioning plate 8 along a second direction, corresponding to the adsorption plate 6. The first and second directions are perpendicular to each other, and their respective planes are horizontal, i.e., left-right and front-back directions, respectively. The support plate 7 and the positioning plate 8 are respectively provided with a first oblong hole and a second oblong hole extending in the first and second directions. The positioning plate 8 and the adsorption plate 6 are respectively provided with a first locking element and a second locking element adapted to the first oblong hole and the second oblong hole. In this embodiment, the first positioning element 4 and the second positioning element 5 are both micrometer heads. The design of the oblong hole and the locking element allows the position of the positioning plate 8 and the support plate 7 to be adjusted in the first and second directions, respectively. When the position needs to be adjusted, the locking element is released, allowing the positioning plate 8 or the adsorption plate 6 to move freely. After adjusting to the target position, the locking element is tightened to a specified torque, locking the current position through frictional resistance. This ensures that no displacement occurs under normal working conditions. It ensures both flexibility of adjustment and sufficient locking strength to guarantee stable positioning during operation. Accuracy is guaranteed by detecting the positions of the positioning plate 8 and support plate 7 using a micrometer, meeting the stringent requirements of precision machining for adsorption positioning.

[0044] Reference Figure 2As shown, a clearance space 68 is provided between the adsorption plate 6 and the positioning plate 8. The clearance space 68 is connected to the outside, and the pressure relief valve 69 is disposed within the clearance space 68. The pressure relief valve 69 adopts a compact structure. The valve body is fixed to the side of the positioning plate 8 facing the clearance space 68 by a flange. The air inlet of the valve faces the clearance space 68, and the air outlet is connected to the pressure relief channel 67 of the adsorption plate 6 via a metal hose. The control circuit of the pressure relief valve 69 is led out from the clearance space 68. When the pressure relief valve 69 is opened, outside air enters the groove through the radial through hole of the clearance space 68, converges, and enters the valve body through the air inlet of the pressure relief valve 69, and is then transported to the pressure relief channel 67 via the metal hose. The annular structure of the clearance space 68 allows air to enter from multiple directions, avoiding airflow disturbance caused by a single air intake direction and ensuring a stable pressure relief process. In the non-pressure relief state, the clearance space 68 can serve as a protective cavity for the pressure relief valve 69, preventing external dust and impurities from directly contacting the valve body and reducing the risk of failure.

[0045] The adsorption plate 6 includes a base plate 61 and a cover plate 62. The cover plate 62 is detachably mounted on the base plate 61, and the cover plate 62 and the base plate 61 are sealed together. The adsorption surface of the cover plate 62 is mirror-polished to improve sealing, and the non-adsorption surface is provided with a positioning stop and a sealing groove for mating with the base plate 61. The shape of the base plate 61 is adapted to the stop of the base plate 61. The adsorption space 65 and the flow guiding space 64 are formed on the base plate 61, and the edge of the base plate 61 is provided with a flange corresponding to the sealing groove. The cover plate 62 is connected to the base plate 61 by countersunk bolts, which are evenly distributed around the circumference of the cover plate 62 to ensure uniform clamping force.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A carrier suction device, characterized in that, include: A substrate having at least two position adjustment components; An adsorption mechanism, configured as at least two and movably connected to both sides of a workpiece via a position adjustment assembly, includes: a support plate, a positioning plate, an adsorption plate, and a pressure relief valve. One side of the support plate is movably connected to a base plate via the position adjustment assembly. The positioning plate is located on the other side of the support plate. The adsorption plate is connected to the support plate via the positioning plate. The adsorption plate has multiple adsorption channels, and a negative pressure assembly is connected to each adsorption channel. The adsorption plate has pressure relief channels that are all connected to the multiple adsorption channels, and the pressure relief valve is connected to the pressure relief channels.

2. A carrier suction device according to claim 1, characterised in that: The adsorption plate has an adsorption space, and multiple adsorption channels are connected to one side of the adsorption space, while the pressure relief channel is connected to the other side of the adsorption space.

3. The carrier suction device of claim 1, wherein: The adsorption plate has a negative pressure channel connected to the adsorption space, and the negative pressure component is connected to the adsorption space through the negative pressure channel.

4. The carrier suction device of claim 1, wherein: The adsorption plate also has a flow guiding space, the size of which is smaller than that of the adsorption space. The adsorption space and the pressure relief channel are respectively connected to both sides of the flow guiding space.

5. The carrier adsorption device according to claim 1, characterized in that: The position adjustment component includes a displacement adjustment component and a precision adjustment component. The displacement adjustment component is used to adjust the position of the adsorption mechanism along the length direction of the carrier to be processed, and the precision adjustment component is used to control the relative position of the adsorption plate and the support plate.

6. The carrier adsorption device according to claim 5, characterized in that: The displacement adjustment assembly includes at least two sets of sliding pairs, which are arranged on the base plate along the length direction of the carrier to be processed, and the support plate is connected to the output end of the sliding pairs.

7. The carrier adsorption device according to claim 5, characterized in that: The precision adjustment component includes: a first positioning element and a second positioning element. The first positioning element is installed on the support plate along a first direction and corresponds to the positioning plate. The second positioning element is installed on the positioning plate along a second direction and corresponds to the adsorption plate.

8. The carrier adsorption device according to claim 1, characterized in that: The support plate and the positioning plate are respectively provided with a first waist-shaped hole and a second waist-shaped hole extending in a first direction and a second direction. The positioning plate and the adsorption plate are respectively provided with a first locking member and a second locking member adapted to the first waist-shaped hole and the second waist-shaped hole.

9. The carrier adsorption device according to claim 1, characterized in that: An clearance space is provided between the adsorption plate and the positioning plate, and the clearance space is connected to the outside. The pressure relief valve is located within the clearance space.

10. The carrier adsorption device according to claim 1, characterized in that: The adsorption plate includes a base plate and a cover plate, the cover plate being detachably mounted on the base plate, and the cover plate and the base plate being sealed together.

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