Pushing device and feeding equipment with protective function

Abstract

This invention belongs to the technical field of production equipment and discloses a pushing device and a feeding device with protective functions. It aims to solve the problem of malfunctions caused by inaccurate positioning of the pushing device when fixing workpieces using automated pushing equipment. The pushing device with protective functions includes a fixture with multiple clamps; a pushing component that moves between a feeding position outside the clamps and a clamping position inside the clamps; the pushing component includes a first signal transmission port and a second signal transmission port; and a protection system including a transmitting sensor and a receiving sensor. The first and second signal transmission ports enable information exchange between the transmitting and receiving sensors to establish a safety circuit.

Description

Technical Field

[0001] This invention relates to the technical field of production equipment, and in particular to a pushing device and feeding equipment with protective functions. Background Technology

[0002] In surface mount technology in the electronics assembly or semiconductor industries, fixtures are often used to place small substrates or wafers.

[0003] Existing fixtures all use automated pushing devices to clamp or release workpieces, eliminating the need for manual operation, saving manpower, and increasing work efficiency. However, there is a problem where the pushing device fails to accurately position the fixture, causing the fixture to be unable to clamp or release the workpiece, resulting in equipment malfunction. Summary of the Invention

[0004] The purpose of this invention is to provide a pushing device and a feeding equipment with protective functions, which aims to solve the problem that existing fixtures fix workpieces by using automated pushing equipment, resulting in malfunctions due to inaccurate positioning of the pushing equipment.

[0005] To achieve this objective, the present invention employs the following technical solution: a pushing device with protective function, including a jig, which includes multiple clamps;

[0006] A pushing component that moves between a loading position outside the fixture and a clamping position inside the fixture;

[0007] The pushing component includes a first signal transmission hole and a second signal transmission hole;

[0008] The protection system includes transmitting and receiving sensors;

[0009] The first signal transmission port and the second signal transmission port can exchange information between the transmitting sensor and the receiving sensor in order to activate the safety circuit.

[0010] Preferably, the pushing component includes a positioning assembly;

[0011] The fixture is provided with positioning holes that cooperate with the positioning component;

[0012] The positioning component can enable or disable the information interaction between the transmitting sensor and the receiving sensor.

[0013] Preferably, the positioning assembly includes a first positioning rod, a first positioning base, a second positioning rod, and a second positioning base;

[0014] One end of the first positioning rod is inserted into the first positioning base, and the other end of the first positioning rod corresponds to the positioning hole.

[0015] One end of the second positioning rod is inserted into the second positioning base, and the other end of the second positioning rod corresponds to the positioning hole.

[0016] The first signal transmission hole is disposed on the first positioning rod, and the second signal transmission hole is disposed on the second positioning rod. The first signal transmission hole and the second signal transmission hole are respectively disposed to allow information exchange between the transmitting sensor and the receiving sensor.

[0017] Preferably, the first positioning rod and / or the second positioning rod are configured with a first limiting block and a second limiting block;

[0018] The first positioning seat and / or the second positioning seat are provided with a moving groove, the moving groove extends along the length direction of the first positioning rod and / or the second positioning rod, and the first limiting block can be engaged in the moving groove;

[0019] The second limiting block is disposed at the end of the first positioning rod and / or the second positioning rod.

[0020] Preferably, the pushing component further includes a moving component and a driving cylinder;

[0021] The drive cylinder is connected to the moving component and is used to provide kinetic energy to the moving component.

[0022] Preferably, the moving component includes a first base and a plurality of push rods;

[0023] The first base is located on one side of the fixture, one end of each of the plurality of push rods is fixed to the first base, and the other end of each of the plurality of push rods can pass through the plurality of clamps, so that the push rods can push the clamps to switch working states.

[0024] Preferably, the first base is connected to the drive cylinder by screws so that the position of the first base is adjustable.

[0025] Preferably, the drive cylinder is externally connected to a drive trigger circuit, and the drive trigger circuit is equipped with a drive solenoid valve and a proximity sensor.

[0026] The proximity sensor can activate the drive trigger circuit when it approaches the rail accessories or metal parts of the feeding equipment, and the drive solenoid valve receives an electrical signal to start and provide power to the moving component.

[0027] The feeding equipment includes the aforementioned pusher with protective function.

[0028] As a preferred option, a stabilizing column is also included;

[0029] The stabilizing post is disposed on the edge side of the fixture;

[0030] One end of the stabilizing column is fixed to the fixing surface of the pushing component, and the other end of the stabilizing column is inserted into the fixture.

[0031] The beneficial effects of this invention are as follows: In the technical solution of this invention, the pushing component moves between the loading position outside the fixture and the clamping position inside the receiving part. The protection system can detect the engagement state of the pushing component and the fixture according to the state of the positioning component, and switch the state of the safety circuit according to the position of the positioning component. When the pushing component and the fixture are well engaged, the signal of the transmitting sensor is transmitted to the receiving sensor through the first signal transmission hole and the second signal transmission hole to complete the information interaction. The control output terminal of the receiving sensor transmits the interaction signal to the safety circuit, the safety circuit is turned on, the pushing component performs the pushing action, and then the loading equipment performs the workpiece loading process. When the pushing component and the fixture are abnormally engaged, the signal of the transmitting sensor cannot be transmitted to the receiving sensor through the first signal transmission hole and the second signal transmission hole, that is, the receiving sensor cannot receive the signal, thereby causing the safety circuit to be disconnected, executing an emergency stop, avoiding the occurrence of failure, and improving the safety of equipment use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the pushing device for the feeding equipment according to an embodiment of the present invention;

[0033] Figure 2 This is a circuit diagram of the transmitting sensor according to an embodiment of the present invention;

[0034] Figure 3 This is a circuit diagram of the receiving sensor according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the fixture according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the fixture according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the first positioning rod according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the second positioning rod according to an embodiment of the present invention;

[0039] Figure 8 This is a circuit diagram of the proximity sensor according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the connection between the moving component and the driving cylinder in an embodiment of the present invention;

[0041] Figure 10This is a schematic diagram of the structure of the stabilizing column according to an embodiment of the present invention.

[0042] In the diagram: 1. Fixture; 11. Clamp; 111. Push block; 112. Elastic element; 12. Workpiece; 13. Positioning hole; 2. Pushing component; 21. Positioning assembly; 211. First positioning rod; 212. First positioning base; 213. Second positioning rod; 214. Second positioning base; 215. First signal transmission hole; 216. Second signal transmission hole; 217. First limit block; 218. Second limit block; 219. Moving slot; 22. Moving assembly; 221. First base; 222. Push rod; 23. Drive cylinder; 231. Drive solenoid valve; 232. Proximity sensor; 24. Fourth base; 25. Stabilizing column; 3. Protection system; 31. Transmitting sensor; 32. Receiving sensor. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0044] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0047] First, refer to Figures 1 to 3 The present invention provides a protective pushing device and a feeding device. To achieve this objective, the present invention adopts the following technical solution: The protective pushing device includes a fixture 1 having multiple clamps 11; a pushing component 2 that moves between a feeding position outside the clamps 11 and a clamping position inside the clamps 11; a protection system 3 for switching the state of the safety circuit according to the position of the fixture 1 pushed by the pushing component 2; the pushing component 2 includes a first signal transmission hole 215 and a second signal transmission hole 216; the protection system 3 includes a transmitting sensor 31 and a receiving sensor 32.

[0048] The first signal transmission port 215 and the second signal transmission port 216 can exchange information between the transmitting sensor 31 and the receiving sensor 32 in order to activate the safety circuit.

[0049] Specifically, when the pushing component 2 and the fixture 1 are properly connected, the signal from the transmitting sensor 31 is transmitted to the receiving sensor 32 through the first signal transmission hole and the second signal transmission hole to complete the information interaction. The control output terminal of the receiving sensor 32 transmits the interaction signal to the safety circuit, the safety circuit is activated, the pushing component 2 performs the pushing action, and then the loading equipment performs the loading process of the workpiece 12. When the pushing component 2 and the fixture 1 are not properly connected, the signal from the transmitting sensor 31 cannot be transmitted to the receiving sensor 32 through the first signal transmission hole and the second signal transmission hole, that is, the receiving sensor 32 cannot receive the signal, which causes the safety circuit to be disconnected, and an emergency stop is executed to avoid the occurrence of failure and improve the safety of equipment use.

[0050] The receiving sensor 32 is mounted on the receiving sensor 32 bracket; the receiving sensor 32 is connected to the driving cylinder 23 by screws, so that the position of the receiving sensor 32 can be adjusted; furthermore, the transmitting sensor 31 and the receiving sensor 32 are preferably fixed at opposite ends of the third base of the driving cylinder 23.

[0051] The transmitting sensor 31 is connected to the general DC 24-volt power supply of the feeding equipment and transmits light signals to the receiving sensor 32. The installation position is adjustable. The transmitted light signals must pass through the first signal transmission hole 215 and the second signal transmission hole 216 at the bottom of the two positioning rods at the same time to reach the window of the receiving sensor 32.

[0052] Among them, relays are preferred for safety circuits.

[0053] like Figures 4 to 5 As shown, specifically, the fixture 1 has multiple clamps 11 to accommodate multiple workpieces 12 for loading and fixing. The pushing component 2 can move to the inside of the clamps 11 and can switch the clamps to open or closed working states during the movement. When open, the workpieces 12 are placed on the clamps for loading. When closed, the workpieces 12 are fixed and clamped, realizing automated loading and fixing of multiple workpieces 12 on the fixture 1 by pushing them from the inside of the fixture 1, avoiding manpower consumption and improving work efficiency.

[0054] In one embodiment, the fixture 1 includes a clamp 11; the clamp has a push block 111 and an elastic element 112 inside; the workpiece 12 is located inside the clamp 11; the elastic element 112 is provided on one side of the push block 111, and the workpiece 12 is provided on the other side of the push block 111; the push block 111 can fix the workpiece 12. The specific working process is as follows:

[0055] The push block 111 built into the fixture on jig 1 has two working states: open and closed. During operation, the first step is that the push block 111 is pushed by the pusher 2 to move closer to the elastic member 112, and the spring is in a contracted state. The push block 111 is in the open state, and then the workpiece 12 is placed in the fixture to complete the loading of the workpiece 12. The second step is that after the workpiece 12 is placed, the push block 111 is pushed by the pusher 2 to move closer to the workpiece 12 until it contacts the workpiece 12. When the push block 111 is in the closed state, the elastic force of the elastic member 112 is used to fix the workpiece 12 by squeezing under the action of the elastic force.

[0056] After the invention is applied, the opening and closing of the push block 111 built into the fixture on the jig 1 is completed within the equipment. The whole process is automated, saving manpower, improving efficiency, and reducing the production of defective workpieces 12.

[0057] The fixture 1 has multiple clamps 11, which means that under the push of the pusher 2, the pusher 2 can simultaneously load and fix multiple workpieces 12 in the multiple clamps 11, thereby improving work efficiency.

[0058] Continue reading Figure 4For example, the pushing component 2 includes a positioning component 21; the fixture 1 is provided with a positioning hole 13 that cooperates with the positioning component 21; the positioning component 21 can open or close the signal transmission path.

[0059] Specifically, by configuring positioning holes 13 on the fixture 1, the positioning component 21 can determine whether the position of the fixture 1 is accurate, thus avoiding the problem that the inaccurate position of the fixture 1 causes abnormal engagement between the pushing component and the fixture, resulting in poor quality of the workpiece 12.

[0060] It is worth mentioning that the positioning component 21 can move vertically up and down. Due to the spring installed inside, it can always be kept at the highest position under the elastic action of the spring. The function of the positioning component 21 is to fix the position of the fixture 1 in advance. Before the fixture 1 operates inside the equipment, the position of the fixture 1 can be corrected in advance by the positioning component 21, which is conducive to the push rod 222 accurately entering the hole groove of the push block 111. It provides safety detection for the entire pushing device. The positioning component 21 can connect or disconnect the first signal transmission hole 215 and the second signal transmission hole 216, and can make the receiving sensor 32 and the transmitting sensor 31 form a safety signal for interaction, thereby switching the protection circuit and improving the safety of the feeding equipment.

[0061] Continue reading Figures 6 to 7 For example, the positioning component 21 includes a first positioning rod 211, a first positioning base 212, a second positioning rod 213, and a second positioning base 214; one end of the first positioning rod 211 is inserted into the first positioning base 212, and the other end of the first positioning rod 211 corresponds to the positioning hole 13; one end of the second positioning rod 213 is inserted into the second positioning base 214, and the other end of the second positioning rod 213 corresponds to the positioning hole 13; a first signal transmission hole 215 is disposed on the first positioning rod 211, and a second signal transmission hole 216 is disposed on the second positioning rod 213, and the first signal transmission hole 215 and the second signal transmission hole 216 are correspondingly arranged to exchange information between the transmitting sensor 31 and the receiving sensor 32.

[0062] In one embodiment, the first positioning rod 211 and the second positioning rod 213 are respectively fixed on opposite sides of the third base of the drive cylinder 23; the first positioning rod 211 and the second positioning rod 213 pass through the first positioning base 212 and the second positioning base 214 respectively, and the first positioning rod 211 and the second positioning rod 213 can move vertically up and down. Under the action of the springs arranged in the first positioning base 212 and the second positioning base 214, the first positioning rod 211 and the second positioning rod 213 can always be kept in the highest position. The functions of the first positioning rod 211 and the second positioning rod 213 are: to fix the position of the fixture 1 in advance; the tops of the first positioning rod 211 and the second positioning rod 213 are both tapered, so the position of the fixture 1 can be corrected in advance before the fixture 1 operates inside the equipment, which is conducive to the accurate entry of the push rod 222 into the slot of the push block 111; safety protection function: the bottom ends of the first positioning rod 211 and the second positioning rod 213 each have a first signal transmission hole 215 and a second signal transmission hole 216 with 1.5 mm round holes, which together with the receiving sensor 32 and the transmitting sensor 31 form a safety signal transmission path, improving the safety of the feeding equipment.

[0063] Continue reading Figures 6 to 7 For example, the first positioning rod 211 and / or the second positioning rod 213 are provided with a first limiting block 217 and a second limiting block 218; the first positioning seat 213 and / or the second positioning seat 214 are provided with a moving groove 219, the moving groove 219 extends along the length direction of the first positioning rod 211 and / or the second positioning rod 213, and the first limiting block 217 can be engaged in the moving groove 219; the second limiting block 218 is disposed at the end of the first positioning rod 211 and / or the second positioning rod 213.

[0064] The first limiting block 217 can move along the moving groove 219 during the movement of the first positioning rod 211 and / or the second positioning rod 213, thereby guiding the first positioning rod 211 and / or the second positioning rod 213 in the moving path and preventing the first limiting block 217 from rotating during the movement, which would affect the information interaction of the protection system 3.

[0065] The second limiting block 218 is located at the lower end of the first positioning rod 211 and is used to limit the first positioning rod 211 at the lower end of the first positioning rod 211 to adjust the height of the first positioning rod 211 and prevent the first positioning rod 211 from disengaging from the first positioning seat; the second limiting block 218 is located at the lower end of the second positioning rod 213 and is used to limit the second positioning rod 213 at the lower end of the second positioning rod 213 to adjust the height of the second positioning rod 213 and prevent the positioning rod from disengaging from the second positioning seat.

[0066] The first positioning seat 213 and / or the second positioning seat 214 are connected to the third base by screws, so that the installation position of the first positioning seat 213 and / or the second positioning seat 214 can be adjusted.

[0067] Continue reading Figure 4 For example, it also includes a fourth base 24; the fourth base 24 is located below the third base, and the fourth base 24 is connected to the third base by screws.

[0068] Specifically, by placing the fourth base 24 below the third base and connecting the fourth base 24 to the third base with screws, the position of the third base relative to the fourth base 24 can be adjusted.

[0069] The fourth base 24 is also called the main base. The fourth base 24 is used to connect to the third base of the drive cylinder 23 and can support the entire pushing device. It is fixed to the platform of the feeding equipment by screws, so that the installation position of the entire pushing device can be adjusted to meet various usage needs.

[0070] Continue reading Figure 8 For example, it also includes a proximity sensor 232; the proximity sensor 232 is used to control the working state of the pushing component 2. When the proximity sensor 232 senses the track accessories or metal parts of the feeding device, it transmits the signal to the drive cylinder 23 of the pushing component 2 to realize the automatic start of the power source, thereby realizing the moving component 22 to feed and fix the workpiece 12 on the fixture 1.

[0071] The proximity sensor 232 can generate a sensing signal when it detects a component approaching the feeding equipment's track, thereby activating the internal main circuit and providing an electrical signal to the drive solenoid valve of the drive cylinder 23. This activates the drive cylinder 23, which in turn moves the push rod 222. The proximity sensor 232 is located on the working platform.

[0072] For example, both the transmitting sensor 31 and the receiving sensor 32 are photoelectric sensors.

[0073] Specifically, the tops of the first positioning rod 211 and the second positioning rod 213 extend approximately four millimeters above the top of the push rod 222. During the fixing process of the fixture 1 within the feeding equipment, the tips of the first positioning rod 211 and the second positioning rod 213 first pass through the positioning hole 13 of the fixture 1. The transmitting sensor 31 and the receiving sensor 32, respectively mounted on the first positioning rod 211 and the second positioning rod 213, work together to determine whether the position of the fixture 1 is correct. When the tips of the first positioning rod 211 and the second positioning rod 213 cannot pass through the positioning hole 13 of the fixture 1, the first positioning rod 211 and the second positioning rod 213 move downwards, triggering a safety signal. The lower ends of the first positioning rod 211 and the second positioning rod 213 are each provided with a 1.5-millimeter circular hole. The visible light beam emitted by the transmitting sensor 31 cannot pass through the two 1.5-millimeter circular holes simultaneously and eventually reaches the receiving sensor 32.

[0074] The power supply for both the transmitting sensor 31 and the receiving sensor 32 comes from the general-purpose DC 24-volt power supply of the feeding equipment. The control output terminal of the receiving sensor 32 is connected in series with the safety circuit of the feeding equipment. When the optical signal of the receiving sensor 32 is disconnected, the safety circuit of the feeding equipment is also disconnected, and an emergency stop is executed to avoid the occurrence of a fault.

[0075] Continue reading Figure 9 For example, the pushing component 2 further includes a moving component 22 and a driving cylinder 23; the driving cylinder 23 is connected to the moving component 22 and is used to provide kinetic energy to the moving component 22.

[0076] The driving principle of the drive cylinder 23 is as follows: The drive cylinder 23 includes a drive solenoid valve, a drive solenoid valve signal line, an output air pipe, a throttle valve, and a pressure regulating valve. The drive solenoid valve provides power to the drive cylinder 23, thereby driving the moving component 22 to move. The drive solenoid valve signal line provides an electrical signal for the action of the drive solenoid valve. The positive terminal of the signal line is connected to the positive voltage of the proximity sensor 232, and the negative terminal is connected to the output terminal of the proximity sensor 232. The output air pipe is used to transmit compressed air and connects the drive solenoid valve and the drive cylinder 23. The throttle valve regulates the flow rate of compressed air in the output air pipe to control the moving speed of the drive cylinder 23. The cylinder regulating valve is used to regulate the pressure of the compressed air source to control the moving force of the cylinder drive block.

[0077] Continue reading Figure 4 For example, the moving component 22 includes a first base 221 and a plurality of push rods 222; the first base 221 is located on one side of the fixture 1, one end of the plurality of push rods 222 is fixed to the first base 221, and the other end of the plurality of push rods 222 can pass through the plurality of clamps 11 respectively, so that the push rods 222 can push the clamps 11 to switch working states.

[0078] Specifically, by fixing the lower ends of multiple push rods 222 to the first base 221, the upper ends of multiple drive rods can pass through multiple clamps 11. The drive assembly is located on the lower side of the first base 221. The drive assembly applies power to the first base 221, and the first base 221 drives the multiple push rods 222 fixed thereon to move. The multiple push rods 222 switch between the open and closed working states of the push block 111 in the multiple clamps 11, thereby realizing the process of loading and fixing the workpiece 12 and improving work efficiency.

[0079] The push block 111 has a slot so that the push rod 222 passes through the slot and drives the push block 111 to move. When the push rod 222 drives the push block 111 to move closer to the elastic member 112, the push block 111 squeezes the elastic member 112 and the push block 111 is in the open state, that is, the fixture 1 is feeding the workpiece 12. When the push rod 222 drives the push block 111 to move closer to the workpiece 12, the push block 111 squeezes the workpiece 12, and under the elastic force of the elastic member 112, the push block 111 can squeeze and fix the workpiece 12.

[0080] Continue reading Figure 9 For example, the first base 221 is connected to the drive cylinder 23 by screws so that the position of the first base 221 is adjustable.

[0081] Specifically, the first base 221 is installed on the upper side of the drive cylinder 23, and the first base 221 is connected to the drive cylinder 23 by screws. This allows the installation position of the first base 221 to be adjusted accordingly to cope with various usage environments, so as to ensure that the push rod 222 on the first base 221 can accurately switch the working state of the push block 111.

[0082] The first base 221 has multiple through holes to reduce its weight and ensure it has sufficient strength.

[0083] Continue reading Figure 8 For example, the drive cylinder 23 is externally connected to a drive trigger circuit, which is equipped with a drive solenoid valve 231 and a proximity sensor 232. The proximity sensor 232 can activate the drive trigger circuit when it is close to the track accessory of the feeding equipment, and the drive solenoid valve 231 receives an electrical signal to start and provide power to the moving component 22.

[0084] Continue reading Figure 10 For example, it also includes a stabilizing post 25; the stabilizing post 25 is disposed on the edge side of the fixture 1; the lower end of the stabilizing post 25 is fixed to the fixing surface of the pushing member 2, the upper end of the stabilizing post 25 is inserted into the fixture 1, and the side wall of the stabilizing post 25 can be close to the pushing member 2.

[0085] Specifically, the lower end of the stabilizing column 25 is fixed to the third base with screws; the stabilizing column 25 is set on the edge side of the fixture 1 so that the force of the stabilizing column 25 is on the fixture 11, so as to avoid the problem of the reaction force being transmitted to the transmission system of the feeding equipment through the fixture 11 when the elastic element 112 is compressed, causing the transmission system to deform.

[0086] It is worth mentioning that the preferred number of stabilizing posts 25 is two, with the two stabilizing posts 25 located on opposite sides of the edge of the fixture 1, so as to achieve force fixation on both sides of the fixture 1 and better avoid the problem of deformation of the moving components.

[0087] The fixture 1 is equipped with a force-bearing hole corresponding to the position of the stabilizing column 25, so that the upper end of the stabilizing column 25 can pass through the force-bearing hole to fix the path of the moving component 22 during the movement process and avoid deformation.

[0088] The upper end of the stabilizing column 25 can be provided with a force-bearing block, which can pass through the force-bearing hole on the fixture 1 to achieve a stable positioning effect.

[0089] The lower end of the stabilizing column 25 can be provided with a base of a large area to ensure that the stabilizing column 25 has a better stabilizing effect.

[0090] The feeding equipment includes the aforementioned pusher with protective function.

[0091] The workflow of the feeding equipment is as follows:

[0092] The fixture 1 is transported through the conveying system of the feeding equipment to the top of the first base 221 and fixed in the conveying system of the feeding equipment. The working platform moves slowly vertically upward. First, the tip of the positioning rod passes through the positioning hole 13 of the fixture 1 to detect the position of the fixture 1.

[0093] Then, the push rod 222 passes through the slot of the push block 111, and the working platform continues to move slowly upward. The proximity sensor 232 approaches the track accessory of the feeding equipment, triggering the main circuit inside the proximity sensor 232 to conduct, providing an electrical signal to the drive solenoid valve of the drive cylinder 23. Under the control of the drive solenoid valve, the drive cylinder 23 moves towards the elastic member 112, pushing the first base 221 towards the elastic member 112. Driven by the first base 221, multiple push rods 222 move synchronously towards the elastic member 112. The force of the push rod 222 is applied to the push block 111, and the push block 111 overcomes the force of the spring until the spring is fully compressed. The push block 111 is in the open state, and the feeding equipment begins to perform the feeding operation of the workpiece 12 from the original packaging material to the fixture 1.

[0094] After the moving action of the feeding equipment is completed, the transmission system releases the fixture 1, and the working platform begins to move slowly downward. When the proximity sensor 232 leaves the track accessory of the feeding equipment, the main circuit inside the proximity sensor 232 is disconnected, and the electrical signal of the drive solenoid valve of the drive cylinder 23 is also disconnected. Under the negative pressure inside the drive cylinder 23, the drive cylinder 23 moves horizontally towards the workpiece 12, and at the same time drives the first base 221 and the push rod 222 to move towards the workpiece 12. Returning to the initial position, the push block 111 moves under the action of the spring, squeezing and fixing the workpiece 12.

[0095] When the work platform moves downward to the initial position, fixture 1 is conveyed out of the loading device by the transmission system, completing one automatic fixing cycle of fixture 1.

[0096] It is worth mentioning that if the jig 1 is in an abnormal direction or stopping position in the transmission system of the feeding equipment, and the tip of the positioning rod of the jig 1 cannot pass through the positioning hole 13 on the jig 1, the positioning rod of the jig 1 will move downward. The light beam emitted by the transmitting sensor 31 will not be able to pass through the first signal transmission hole 215 and the second signal transmission hole 216 at the bottom of the positioning rod to reach the receiving sensor 32. The light signal of the receiving sensor 32 will be disconnected, thereby causing the safety circuit of the feeding equipment to be disconnected and an emergency stop to be executed, which can prevent the malfunction from occurring.

[0097] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pushing device with protective function, characterized in that, include The fixture (1) includes multiple clamps (11); The pusher (2) moves between the loading position outside the clamp (11) and the clamping position inside the clamp (11); The pushing component (2) includes a first signal transmission hole (215) and a second signal transmission hole (216); The protection system (3) includes a transmitting sensor (31) and a receiving sensor (32). The first signal transmission port (215) and the second signal transmission port (216) can exchange information between the transmitting sensor (31) and the receiving sensor (32) in order to conduct a safety circuit; The pushing component (2) includes a positioning component (21); The fixture (1) is provided with positioning holes (13) that cooperate with the positioning component (21). The positioning component (21) can enable or disable the information interaction between the transmitting sensor (31) and the receiving sensor (32); The positioning component (21) includes a first positioning rod (211), a first positioning base (212), a second positioning rod (213), and a second positioning base (214). One end of the first positioning rod (211) is inserted into the first positioning base (212), and the other end of the first positioning rod (211) corresponds to the positioning hole (13). One end of the second positioning rod (213) is inserted into the second positioning base (214), and the other end of the second positioning rod (213) corresponds to the positioning hole (13). The first signal transmission hole (215) is disposed on the first positioning rod (211), and the second signal transmission hole (216) is disposed on the second positioning rod (213). The first signal transmission hole (215) and the second signal transmission hole (216) are respectively disposed to allow the information of the transmitting sensor (31) and the receiving sensor (32) to interact. The pushing component (2) also includes a moving component (22) and a driving cylinder (23); The drive cylinder (23) is connected to the moving component (22), and the drive cylinder (23) is used to provide kinetic energy to the moving component (22).

2. The pushing device with protective function according to claim 1, characterized in that, The first positioning rod (211) and / or the second positioning rod (213) are equipped with a first limiting block (217) and a second limiting block (218). The first positioning rod (211) and / or the second positioning rod (213) are provided with a moving groove (219), the moving groove (219) extends along the length direction of the first positioning rod (211) and / or the second positioning rod (213), and the first limiting block (217) can be engaged in the moving groove (219); The second limiting block (218) is disposed at the end of the first positioning rod (211) and / or the second positioning rod (213).

3. The pushing device with protective function according to claim 1, characterized in that, The moving component (22) includes a first base (221) and a plurality of push rods (222); The first base (221) is located on one side of the fixture (1). One end of the plurality of push rods (222) is fixed to the first base (221), and the other end of the plurality of push rods (222) can pass through the plurality of clamps (11) so that the push rods (222) can push the clamps (11) to switch working states.

4. The pushing device with protective function according to claim 3, characterized in that, The first base (221) is connected to the drive cylinder (23) by screws so that the position of the first base (221) is adjustable.

5. The pushing device with protective function according to claim 1, characterized in that, The drive cylinder (23) is externally connected to a drive trigger circuit, which is equipped with a drive solenoid valve (231) and a proximity sensor (232). The proximity sensor (232) can activate the drive trigger circuit when it is close to the rail accessories or metal parts of the feeding equipment, and the drive solenoid valve (231) receives an electrical signal to start and provide power to the moving component.

6. The pushing device with protective function according to claim 1, characterized in that, It also includes stabilizing columns (25); The stabilizing post (25) is disposed on the edge side of the fixture (1); One end of the stabilizing column (25) is fixed to the fixing surface of the pushing component (2), and the other end of the stabilizing column (25) is inserted into the fixture (1).

7. A feeding device, characterized in that, Includes the protective push device as described in any one of claims 1-6.

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