Automatic clamping device for bridge steel mold production

Abstract

The application discloses a kind of automatic clamping device for bridge steel mould production, belong to bridge steel mould production technical field, including forging press and execution module, execution module includes clamping piece and drive piece, clamping piece includes electric parallel clamp jaw, and two movable jaws of electric parallel clamp jaw are equipped with end structure. The stress generated in the process of forging of billet acts on end structure, and the main plug component in the process of elastic retraction of driving end structure, the main plug component continuously extrudes and injects insulating driving liquid into the auxiliary plug cavity through the connection channel, so that the elastically extensible auxiliary plug component is tightly pressed on the surface of the billet being forged, so that the clamping piece can better adapt to the stress effect of billet in the process of forging by its elastic deformation capacity, effectively avoid the damage of stress concentration to clamping device, and additionally clamp the billet to compensate, so as to ensure the stable clamping of billet in the process of forging, and guarantee the production quality of bridge steel mould.

Description

Technical Field

[0001] This invention relates to the field of bridge steel mold production technology, and more specifically, to an automatic clamping device for bridge steel mold production. Background Technology

[0002] Bridge steel formwork, as a temporary support measure, is an indispensable tool in bridge construction and is widely used in modern construction. Whether it's highways, railways, urban rail transit, or large-scale infrastructure projects such as water conservancy and hydropower, bridge steel formwork plays a vital role.

[0003] In the manufacturing of bridge steel formwork, key load-bearing components such as main beams and crossbeams are large in size and need to withstand large bending moments and shear forces. Therefore, forging processes are required to ensure their overall performance and safety.

[0004] The production of forgings in bridge steel molds involves clamping and flipping the forgings on a forging table using a clamping device to complete the forging process. However, during the forging of metal blanks for bridge steel molds, existing forging equipment is prone to plastic deformation due to stress when clamping the blanks being hammered and forged. Furthermore, when the clamping device is subjected to long-term forging stress, it is also prone to cracking or sudden breakage, leading to interruption of the forging process, reduced production efficiency of bridge steel molds, and significant safety hazards to operators.

[0005] In view of this, we propose an automatic clamping device for bridge steel mold production. Summary of the Invention

[0006] Technical problem to be solved: The purpose of this invention is to provide an automatic clamping device for the production of bridge steel molds, which solves the technical problems mentioned in the background art.

[0007] Technical solution: The present invention provides an automatic clamping device for bridge steel mold production, including a forging press and an execution module. The execution module includes a clamping component and a driving component for driving the clamping component to move. The clamping component includes an electric parallel jaw. Each of the two movable jaws of the electric parallel jaw is provided with an end structure. The end structure includes an insulating end seat connected to the movable jaw of the electric parallel jaw. The insulating end seat is provided with a main plug cavity, a secondary plug cavity and a connecting channel, and the main plug cavity and the secondary plug cavity are connected through the connecting channel.

[0008] A main plug component is slidably inserted into the end opening of the main plug cavity, and the main plug cavity is also filled with insulating driving fluid. The main plug component includes a V-groove. An elastically retractable secondary plug component is slidably inserted into the secondary plug cavity. A first schematic unit and a second schematic unit are respectively provided on the outer wall of the insulating end seat at the positions corresponding to the main plug cavity and the V-groove. The first schematic unit includes a fixed switch terminal and a movable switch spring located in the main plug cavity and arranged opposite to each other. The movable switch spring is connected to the main plug component. The second schematic unit includes a forced sliding rod slidably inserted into the inner wall of the heat-insulating pressure cylinder seat and whose end extends into the V-groove and is in contact with the inner wall of the V-groove, as well as a fixed switch terminal connected to the insulating end seat. A spring mechanism is connected to the forced sliding rod.

[0009] When the main plug component is fully retracted into the main plug cavity, the switch moving spring contacts the switch fixed terminal and triggers the first indicator unit to open.

[0010] When the main plug component retracts and the V-groove drive spring mechanism contacts the fixed switch terminal, the second indicator unit is triggered to open. When the spring mechanism disengages from the V-groove, the spring mechanism disengages from the fixed switch terminal.

[0011] As an optional solution of the technical solution in this invention document, the main plug component includes a heat-insulating pressure cylinder seat that is sealed and slidably within the end opening of the main plug cavity, and a V-shaped groove is provided on the side wall of the heat-insulating pressure cylinder seat.

[0012] A first pressure spring is connected to one end of the heat-insulating pressure cylinder seat that extends into the main plug cavity, and the other end of the first pressure spring is connected to the end of the main plug cavity.

[0013] As an optional solution to the technical solution of this invention document, the first indicator unit further includes a first indicator lamp, and the first indicator lamp is connected to the side wall of the insulating end seat.

[0014] The fixed terminal of the switch is located inside the main plug cavity, and the end of the fixed terminal away from the moving spring of the switch is connected to the end of the main plug cavity;

[0015] The switch spring is connected to the end of the inner cavity of the heat-insulating pressure cylinder seat.

[0016] As an optional solution of the technical solution in this invention document, both the switch moving spring and the switch fixed terminal are electrically connected to the first indicator light, and when the switch moving spring moves toward the switch fixed terminal and contacts the end of the switch fixed terminal, the first indicator light in the first indicator unit is triggered to turn on.

[0017] As an optional solution to the technical solution of this invention, when the first pressure spring in the main plug component is in the initial relaxed state, the switch moving spring and the switch fixed terminal do not contact each other.

[0018] As an optional solution to the technical solution of this invention document, the second schematic unit further includes a second schematic lamp connected to the side wall of the insulating end seat;

[0019] The spring mechanism includes a lateral insulating frame connected to the side wall of the actuating slide bar;

[0020] A passive switch spring is connected to the side wall of the side insulating frame to work in conjunction with the fixed switch terminal;

[0021] A return spring is also connected to the side insulating frame.

[0022] As an optional solution of the technical solution in this invention document, an active cavity communicating with the atmosphere is opened on the side wall of the insulating end seat, and a dustproof net is also connected to the side wall of the insulating end seat, and the dustproof net is blocked at the end opening of the active cavity.

[0023] The end of the actuating slide bar away from the V-groove is inserted into the interior of the movable groove, and the actuating slide bar is slidably connected in the movable groove;

[0024] The end of the return spring away from the side insulating frame is connected to the end of the movable slot;

[0025] The fixed switch terminal is connected to the side wall of the movable slot, and the surface of the fixed switch terminal side wall is flush with the surface of the movable slot side wall.

[0026] As an optional solution to the technical solution of this invention document, the free end of the passive switch spring is in close contact with the side wall surface of the movable slot;

[0027] Both the passive switch spring and the fixed switch terminal are electrically connected to the second indicator light. When the passive switch spring moves toward the fixed switch terminal and contacts the fixed switch terminal, it triggers the second indicator light in the second indicator unit to turn on.

[0028] During the retraction of the main plug component, the passive switch spring moves toward the fixed switch terminal, and when the end of the actuating slide bar close to the V-groove disengages from the V-groove, the free end of the passive switch spring disengages from the side wall surface of the fixed switch terminal.

[0029] When the return spring in the spring mechanism is in the initial relaxed state, the passive switch spring and the fixed switch terminal do not contact each other.

[0030] As an optional solution to the technical solution of this invention, the auxiliary plug component includes a reciprocating plug that seals and slides inside the auxiliary plug cavity;

[0031] A reverse pressure rod is slidably inserted into the end opening of the reciprocating plug. A second pressure spring is connected to one end of the reverse pressure rod that extends into the inner cavity of the reciprocating plug. The end of the reverse pressure rod away from the second pressure spring extends out from the secondary plug cavity. The end of the second pressure spring away from the reverse pressure rod is connected to the end of the inner cavity of the reciprocating plug.

[0032] When the main plug component is fully retracted into the main plug cavity, the reciprocating plug does not extend out of the secondary plug cavity.

[0033] As an optional solution to the technical solution of this invention, the driving component includes a longitudinal linear motor and two symmetrically arranged guide slides, with the longitudinal linear motor located between the two guide slides.

[0034] Each guide slide is slidably connected to a slide block, and the moving base of the guide slide block and the two slide blocks are connected to a transverse linear motor, and the included angle between the transverse linear motor and the longitudinal linear motor is 90°.

[0035] An electric telescopic rod is connected to the moving part of the horizontal linear motor, a fixed bracket is connected to the free end of the electric telescopic rod, and a geared servo motor is connected to the fixed bracket.

[0036] The fixed end of the electric parallel gripper is rotatably connected to the side of the fixed bracket away from the geared servo motor via a rotating shaft, and the output shaft of the geared servo motor is connected to the end of the rotating shaft.

[0037] Beneficial Effects: One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. When the blank used for producing bridge steel molds is clamped by the clamping component, after the stress generated by the blank during the forging process is applied to the end structure, the main plug component in the end structure is driven to elastically retract. During this process, the main plug component continuously squeezes and injects insulating driving fluid into the secondary plug cavity through the connecting channel, thereby driving the elastically expandable secondary plug component to press tightly against the surface of the blank being forged. This allows the clamping component to better adapt to the stress of the blank during the forging process through its elastic deformation capability, effectively avoiding stress concentration damage to the clamping device, while also providing additional clamping compensation for the blank, thereby ensuring stable clamping of the blank during the forging process and guaranteeing the production quality of the bridge steel mold.

[0038] 2. After the blank is clamped between the two end structures in the electric parallel gripper, the electric parallel gripper continuously clamps the blank. When the clamping force of the end structure on the blank is within the preset range, during the process of the main plug component continuously elastically retracting into the main plug cavity, the V-groove drive spring mechanism contacts the fixed switch terminal, triggering the second indication unit to open. Furthermore, after the end of the forced slide bar near the V-groove disengages from the V-groove, the free end of the passive switch spring disengages from the side wall surface of the fixed switch terminal, and the second indication unit closes. Through the prompts of the second indication unit, the operator can ensure that the clamping force on the blank is always maintained within the optimal range during the manufacturing process of the bridge steel mold. This avoids the main plug component retracting beyond the preset range during the blank forging process, which would cause the main plug component to completely retract into the main plug cavity when the clamping part is holding the blank, resulting in the end structure failing to absorb the blank stress, and causing the clamping part to undergo plastic deformation or even cracks or fractures. This ensures the production and processing quality of the bridge steel mold.

[0039] 3. After the billet forging is completed, the billet is further clamped by the electric parallel gripper. When the main plug component is completely retracted into the main plug cavity, the switch moving spring contacts the switch fixed terminal and triggers the first indicator light in the first indicator unit to turn on, reminding the operator to move the billet to the next station through the execution module. During the movement of the billet, the billet can be clamped more stably, reducing the risk of the billet falling off and improving the safety of operation.

[0040] 4. After the blank forging is completed and the blank is moved by the execution module, when the switch stationary terminal and the switch moving spring contact and trigger the first indicator light to turn on, the switch stationary terminal and the switch moving spring that are in contact are cooled down by the insulating driving fluid located in the main plug cavity. This can effectively reduce the working temperature of the switch stationary terminal and the switch moving spring in the first indicator unit, and prevent the switch moving spring and the switch stationary terminal from overheating in the closed environment during the operation of the first indicator unit, thereby improving the stability and safety of the operation of the first indicator unit. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0042] Figure 2 For the present invention Figure 1 A magnified view of part A in the diagram.

[0043] Figure 3 For the present invention Figure 1 A magnified view of part B in the diagram.

[0044] Figure 4 This is a side view of the overall structure of the present invention.

[0045] Figure 5 For the present invention Figure 4 A magnified view of part C in the middle.

[0046] Figure 6 This is a bottom view of the execution module in this invention.

[0047] Figure 7 This is a cross-sectional view of the end structure in this invention.

[0048] Figure 8 For the present invention Figure 7 A magnified view of part D in the middle.

[0049] Figure 9 For the present invention Figure 7 A magnified view of part E in the middle.

[0050] Figure 10 For the present invention Figure 9 A magnified view of part F in the middle section.

[0051] Explanation of the labels in the diagram:

[0052] 10. Forging press;

[0053] 201. Longitudinal linear motor; 202. Guide slide; 203. Lateral linear motor; 204. Geared servo motor; 205. Electric telescopic rod;

[0054] 301. Electric parallel gripper; 302. Insulating end seat; 303. Heat-insulating pressure cylinder seat; 304. Reverse pressure rod; 305. First indicator light; 306. Second indicator light; 307. Switch fixed terminal; 308. Insulating driving fluid; 309. Reciprocating plug; 310. Switch moving spring; 311. Connecting channel; 312. Forced slide bar; 313. Fixed switch terminal; 314. Side insulating frame; 315. Passive switch spring. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 invention 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 invention.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Reference Figures 1 to 7 This invention provides an automatic clamping device for bridge steel mold production, including a forging press 10 and an execution module. The execution module includes a clamping component and a driving component for driving the clamping component to move. The clamping component includes an electric parallel jaw 301. Each of the two movable jaws of the electric parallel jaw 301 is provided with an end structure. The end structure includes an insulating end seat 302 connected to the movable jaw of the electric parallel jaw 301. The insulating end seat 302 is made of insulating and heat-insulating material. The insulating end seat 302 is provided with a main plug cavity, a secondary plug cavity and a connecting channel 311, and the main plug cavity and the secondary plug cavity are connected through the connecting channel 311.

[0059] The main plug component is slidably inserted into the end opening of the main plug cavity. The main plug cavity is also filled with insulating driving fluid 308, which is an insulating coolant. The main plug component includes a V-groove. An elastically telescopic secondary plug component is slidably inserted into the secondary plug cavity. The outer wall of the insulating end seat 302 is provided with a first schematic unit and a second schematic unit at the corresponding positions of the main plug cavity and the V-groove. The first schematic unit includes a switch fixed terminal 307 and a switch moving spring 310 located in the main plug cavity and arranged opposite to each other. The switch moving spring 310 is connected to the main plug component. The second schematic unit includes a forced sliding rod 312 slidably inserted into the inner wall of the heat-insulating pressure cylinder seat 303 and whose end extends into the V-groove and is in contact with the inner wall of the V-groove, and a fixed switch terminal 313 connected to the insulating end seat 302. A spring mechanism is connected to the forced sliding rod 312.

[0060] When the main plug component is fully retracted into the main plug cavity, the switch moving spring 310 contacts the switch fixed terminal 307 and triggers the first indicator unit to open.

[0061] When the main plug component retracts and the V-groove drive spring mechanism contacts the fixed switch terminal 313, the second indicator unit is triggered to open. When the spring mechanism disengages from the V-groove, the spring mechanism disengages from the fixed switch terminal 313.

[0062] When the blank used for producing bridge steel molds is clamped by the clamping component, the stress generated by the blank during the forging process acts on the end structure. During the process of elastically retracting the main plug component in the end structure, the main plug component continuously squeezes and injects insulating driving fluid 308 into the secondary plug cavity through the connecting channel 311. This drives the elastically expandable secondary plug component to press tightly against the surface of the blank being forged. This allows the clamping component to better adapt to the stress of the blank during the forging process through its elastic deformation capability. This effectively avoids stress concentration damage to the clamping device and also provides additional clamping compensation for the blank, thereby ensuring stable clamping of the blank during the forging process and guaranteeing the production quality of the bridge steel mold.

[0063] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 The present invention provides an automatic clamping device for bridge steel mold production. The driving component includes a longitudinal linear motor 201 and two symmetrically arranged guide slides 202, with the longitudinal linear motor 201 located between the two guide slides 202.

[0064] Each guide slide 202 is slidably connected to a slide block, and the moving seat of the guide slide 202 and the two slide blocks are connected to a transverse linear motor 203, and the included angle between the transverse linear motor 203 and the longitudinal linear motor 201 is 90°.

[0065] An electric telescopic rod 205 is connected to the moving part of the horizontal linear motor 203. The electric telescopic rod 205 is preferably a servo electric cylinder. A fixed bracket is connected to the free end of the electric telescopic rod 205. A reduction servo motor 204 is connected to the fixed bracket.

[0066] The fixed end of the electric parallel gripper 301 is rotatably connected to the side of the fixed bracket away from the geared servo motor 204 via a rotating shaft, and the output shaft of the geared servo motor 204 is connected to the end of the rotating shaft.

[0067] The vertical position of the clamping component is finely adjusted by driving the retractable electric telescopic rod 205, and the electric parallel gripper 301 in the clamping component is rotated by driving the geared servo motor 204.

[0068] Reference Figure 7This invention provides an automatic clamping device for bridge steel mold production. The main plug component includes a heat-insulating pressure cylinder seat 303 that is sealed and slidably within the end opening of the main plug cavity, and a V-shaped groove is provided on the side wall of the heat-insulating pressure cylinder seat 303. The heat-insulating pressure cylinder seat 303 is made of insulating and heat-insulating material.

[0069] The heat-insulating pressure cylinder seat 303 has a first pressure spring connected to one end of its extension into the main plug cavity, and the other end of the first pressure spring is connected to the end of the main plug cavity.

[0070] Reference Figure 7 and Figure 8 The present invention provides an automatic clamping device for bridge steel mold production. The first indicator unit further includes a first indicator light 305, and the first indicator light 305 is connected to the side wall of the insulating end seat 302.

[0071] The fixed terminal 307 of the switch is located inside the main plug cavity, and the end of the fixed terminal 307 away from the switch moving spring 310 is connected to the end of the main plug cavity;

[0072] The switch spring piece 310 is connected to the end of the inner cavity of the heat-insulating pressure cylinder seat 303;

[0073] The movable spring 310 and the fixed terminal 307 are both electrically connected to the first indicator light 305. When the movable spring 310 moves toward the fixed terminal 307 and contacts the end of the fixed terminal 307, the first indicator light 305 in the first indicator unit is triggered to turn on.

[0074] When the first pressure spring in the main plug component is in the initial relaxed state, the switch moving spring 310 and the switch fixed terminal 307 are not in contact with each other.

[0075] Reference Figure 7 , Figure 9 and Figure 10 The present invention provides an automatic clamping device for bridge steel mold production. The second schematic unit also includes a second schematic lamp 306 connected to the side wall of the insulating end seat 302.

[0076] The spring mechanism includes a lateral insulating frame 314 connected to the side wall of the actuating slide bar 312;

[0077] A passive switch spring 315 that works in conjunction with the fixed switch terminal 313 is connected to the side wall of the side insulating frame 314;

[0078] A return spring is also connected to the side insulating frame 314;

[0079] An active cavity communicating with the atmosphere is opened on the side wall of the insulating end seat 302. A dustproof net is also connected to the side wall of the insulating end seat 302, and the dustproof net is blocked at the end opening of the active cavity.

[0080] The end of the actuating slide bar 312 away from the V-groove is inserted into the interior of the movable groove, and the actuating slide bar 312 is slidably connected in the movable groove;

[0081] The end of the return spring away from the side insulating frame 314 is connected to the end of the movable slot;

[0082] The fixed switch terminal 313 is connected to the side wall of the movable slot, and the surface of the side wall of the fixed switch terminal 313 is flush with the surface of the side wall of the movable slot.

[0083] The free end of the passive switch spring 315 is in close contact with the side wall surface of the movable slot;

[0084] The passive switch spring 315 and the fixed switch terminal 313 are both electrically connected to the second indicator light 306. When the passive switch spring 315 moves toward the fixed switch terminal 313 and contacts the fixed switch terminal 313, it triggers the second indicator light 306 in the second indicator unit to turn on.

[0085] During the retraction of the main plug component, the passive switch spring 315 moves toward the fixed switch terminal 313, and when the end of the forced slide bar 312 close to the V-groove is disengaged from the V-groove, the free end of the passive switch spring 315 disengages from the side wall surface of the fixed switch terminal 313.

[0086] When the reset spring in the spring mechanism is in the initial relaxed state, the passive switch spring 315 and the fixed switch terminal 313 do not contact each other.

[0087] After the blank is clamped between the two end structures in the electric parallel gripper 301, the electric parallel gripper 301 continuously clamps the blank. When the clamping force of the end structure on the blank is within a preset range, during the process of the main plug component continuously elastically retracting into the main plug cavity, the V-groove drive spring mechanism contacts the fixed switch terminal 313, triggering the second indicator unit to open. Furthermore, after the end of the actuating slide bar 312 near the V-groove disengages from the V-groove, the free end of the passive switch spring 315 contacts the fixed switch terminal 313. When the side wall surface disengages from contact, the second indicator unit closes. Through the prompts of the second indicator unit, the operator can ensure that the clamping force on the blank is always maintained within the optimal range during the manufacturing process of the bridge steel mold. This prevents the main plug component from retracting beyond the preset range during the blank forging process, which would cause the main plug component to completely retract into the main plug cavity when the clamping part is holding the blank, resulting in the failure of the end structure to absorb the blank stress. This could lead to plastic deformation, cracks, or even breakage of the clamping part, thus ensuring the production and processing quality of the bridge steel mold.

[0088] After the billet forging is completed, the billet is further clamped by the electric parallel gripper 301. When the main plug component is completely retracted into the main plug cavity, the switch moving spring 310 contacts the switch fixed terminal 307 and triggers the first indicator light 305 in the first indicator unit to turn on, reminding the operator to move the billet to the next station through the execution module. During the movement of the billet, the billet can be clamped more stably, reducing the risk of the billet falling off and improving the safety of operation.

[0089] After the blank forging is completed and the blank is moved by the execution module, when the switch fixed terminal 307 and the switch moving spring 310 contact and trigger the first indicator light 305 to turn on, the insulating driving fluid 308 located in the main plug cavity cools down the connected switch fixed terminal 307 and switch moving spring 310. This can effectively reduce the working temperature of the switch fixed terminal 307 and switch moving spring 310 in the first indicator unit, and prevent the switch moving spring 310 and switch fixed terminal 307 from overheating in the closed environment during the operation of the first indicator unit, thereby improving the stability and safety of the operation of the first indicator unit.

[0090] Reference Figure 7 This invention provides an automatic clamping device for bridge steel mold production, wherein the auxiliary plug component includes a reciprocating plug 309 that slides and seals inside the auxiliary plug cavity;

[0091] A reverse pressure rod 304 is slidably inserted into the end opening of the reciprocating plug 309. A second pressure spring is connected to one end of the reverse pressure rod 304 that extends into the inner cavity of the reciprocating plug 309. The other end of the reverse pressure rod 304 that is away from the second pressure spring extends out of the secondary plug cavity. The other end of the second pressure spring that is away from the reverse pressure rod 304 is connected to the end of the inner cavity of the reciprocating plug 309.

[0092] Both the reciprocating plug 309 and the reverse pressure rod 304 are made of heat-insulating material;

[0093] When the main plug component is fully retracted into the main plug cavity, the reciprocating plug 309 does not extend out of the secondary plug cavity.

[0094] When the blank used for producing bridge steel molds is clamped by the clamping component, the stress generated by the blank during the forging process acts on the end structure. During the process of elastically retracting the main plug component in the end structure, the main plug component continuously squeezes and injects the insulating driving fluid 308 into the secondary plug cavity through the connecting channel 311, thereby driving the secondary plug component to move towards the blank. When the reverse pressure rod 304 contacts the surface of the blank, under the action of the second pressure spring that is continuously squeezed and compressed, the reverse pressure rod 304 presses tightly against the surface of the blank being forged, realizing additional clamping compensation for the blank.

[0095] After the billet forging is completed, during the process of further clamping the billet by the electric parallel gripper 301, as the main plug component gradually retracts into the main plug cavity, the reverse pressure rod 304 gradually retracts into the reciprocating plug 309. And when the main plug component is completely retracted into the main plug cavity, the reverse pressure rod 304 is also completely retracted into the reciprocating plug 309.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic clamping device for bridge steel mold production, characterized in that: The device includes a forging press (10) and an execution module. The execution module includes a clamping component and a driving component for driving the clamping component to move. The clamping component includes an electric parallel jaw (301). The two movable jaws of the electric parallel jaw (301) are provided with end structures. The end structures include insulating end seats (302) connected to the movable jaws of the electric parallel jaw (301). The insulating end seats (302) are respectively provided with a main plug cavity, a secondary plug cavity and a connecting channel (311). The main plug cavity and the secondary plug cavity are connected through the connecting channel (311). The main plug cavity is sealed and slidably inserted into the end opening of the main plug cavity. The main plug cavity is also filled with insulating driving fluid (308). The main plug component includes a V-shaped groove. The secondary plug cavity is sealed and slidably fitted with an elastically telescopic secondary plug component. The outer wall of the insulating end seat (302) is provided with a first schematic unit and a second schematic unit respectively at the positions corresponding to the main plug cavity and the V-shaped groove. The first schematic unit includes a switch fixed terminal (307) and a switch moving spring (310) located in the main plug cavity and arranged opposite to each other. The switch moving spring (310) is connected to the main plug component. The second schematic unit includes a forced sliding rod (312) slidably inserted into the inner wall of the heat-insulating pressure cylinder seat (303) and the end of which extends into the V-shaped groove and is in contact with the inner wall of the V-shaped groove, and a fixed switch terminal (313) connected to the insulating end seat (302). A spring mechanism is connected to the forced sliding rod (312). When the main plug component is fully retracted into the main plug cavity, the switch moving spring (310) contacts the switch fixed terminal (307) and triggers the first indicator unit to open; When the main plug component retracts and the V-groove drive spring mechanism contacts the fixed switch terminal (313), the second indicator unit is triggered to open. When the spring mechanism disengages from the V-groove, the spring mechanism disengages from the fixed switch terminal (313).

2. The automatic clamping device for bridge steel mold production according to claim 1, characterized in that: The main plug component includes a heat-insulating pressure cylinder seat (303) that is sealed and slides within the end opening of the main plug cavity, and the V-groove is provided on the side wall of the heat-insulating pressure cylinder seat (303); The heat-insulating pressure cylinder seat (303) is connected to a first pressure spring at one end that extends into the main plug cavity, and the other end of the first pressure spring is connected to the end of the main plug cavity.

3. The automatic clamping device for bridge steel mold production according to claim 2, characterized in that: The first indicator unit also includes a first indicator lamp (305), and the first indicator lamp (305) is connected to the side wall of the insulating end seat (302); The fixed terminal of the switch (307) is located inside the main plug cavity, and the end of the fixed terminal of the switch (307) away from the switch moving spring (310) is connected to the end of the main plug cavity; The switch spring piece (310) is connected to the end of the inner cavity of the heat-insulating pressure cylinder seat (303).

4. The automatic clamping device for bridge steel mold production according to claim 3, characterized in that: The movable spring (310) and the fixed terminal (307) are both electrically connected to the first indicator light (305). When the movable spring (310) moves toward the fixed terminal (307) and contacts the end of the fixed terminal (307), the first indicator light (305) in the first indicator unit is triggered to turn on.

5. The automatic clamping device for bridge steel mold production according to claim 3, characterized in that: When the first pressure spring in the main plug component is in the initial relaxed state, the switch moving spring (310) and the switch fixed terminal (307) do not contact each other.

6. The automatic clamping device for bridge steel mold production according to claim 2, characterized in that: The second indicator unit also includes a second indicator lamp (306) connected to the side wall of the insulating end (302); The spring mechanism includes a side insulating frame (314) connected to the side wall of the actuating slide (312); The side wall of the side insulating frame (314) is connected to a passive switch spring (315) that works in conjunction with the fixed switch terminal (313); A reset spring is also connected to the side insulating frame (314).

7. The automatic clamping device for bridge steel mold production according to claim 6, characterized in that: The insulating end seat (302) has a movable cavity that communicates with the atmosphere on its side wall. The side wall of the insulating end seat (302) is also connected to a dustproof net, and the dustproof net is blocked at the end opening of the movable cavity. The end of the actuating slide rod (312) away from the V-groove is inserted into the movable groove, and the actuating slide rod (312) is slidably connected in the movable groove; The end of the return spring away from the side insulating frame (314) is connected to the end of the movable groove; The fixed switch terminal (313) is connected to the side wall of the movable slot, and the side wall surface of the fixed switch terminal (313) is flush with the side wall surface of the movable slot.

8. The automatic clamping device for bridge steel mold production according to claim 6, characterized in that: The free end of the passive switch spring (315) is in close contact with the side wall surface of the movable slot; The passive switch spring (315) and the fixed switch terminal (313) are both electrically connected to the second indicator light (306). When the passive switch spring (315) moves toward the fixed switch terminal (313) and contacts the fixed switch terminal (313), the second indicator light (306) in the second indicator unit is triggered to turn on. During the retraction of the main plug component, the passive switch spring (315) moves toward the fixed switch terminal (313), and after the end of the actuating slide bar (312) close to the V-groove disengages from the V-groove, the free end of the passive switch spring (315) disengages from the side wall surface of the fixed switch terminal (313). When the reset spring in the spring mechanism is in the initial relaxed state, the passive switch spring (315) and the fixed switch terminal (313) do not contact each other.

9. The automatic clamping device for bridge steel mold production according to claim 2, characterized in that: The auxiliary plug component includes a reciprocating plug (309) that seals and slides inside the auxiliary plug cavity; A reverse pressure rod (304) is slidably inserted into the end opening of the reciprocating plug (309). A second pressure spring is connected to one end of the reverse pressure rod (304) that extends into the inner cavity of the reciprocating plug (309). The end of the reverse pressure rod (304) away from the second pressure spring extends out from the secondary plug cavity. The end of the second pressure spring away from the reverse pressure rod (304) is connected to the end of the inner cavity of the reciprocating plug (309). When the main plug component is fully retracted into the main plug cavity, the reciprocating plug (309) does not extend out from the secondary plug cavity.

10. The automatic clamping device for bridge steel mold production according to claim 1, characterized in that: The driving component includes a longitudinal linear motor (201) and two symmetrically arranged guide slides (202), with the longitudinal linear motor (201) located between the two guide slides (202). Each of the guide slides (202) is slidably connected to a slide block, and the moving seat of the guide slide (202) and the two slide blocks are connected to a transverse linear motor (203), and the included angle between the transverse linear motor (203) and the longitudinal linear motor (201) is 90°. An electric telescopic rod (205) is connected to the moving part of the transverse linear motor (203), a fixed bracket is connected to the free end of the electric telescopic rod (205), and a reduction servo motor (204) is connected to the fixed bracket. The fixed end of the electric parallel gripper (301) is rotatably connected to the side of the fixed bracket away from the geared servo motor (204) via a rotating shaft, and the output shaft of the geared servo motor (204) is connected to the end of the rotating shaft.

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