Turnover device for plunger machining

Abstract

The utility model belongs to the field of plunger machining, and particularly relates to a turn-over device for plunger machining, which comprises a support, the back of the support is fixedly connected with a driving motor, and the output end of the driving motor penetrates through the support and is fixedly connected with a clamping component. The clamping assembly comprises an electric push rod fixedly connected to the output end of the driving motor, one end of the electric push rod is fixedly connected with a clamping table, and push grooves are formed in the side face of the clamping table in an annular array mode. Through the linkage structure design of pushing grooves formed in the side face of the clamping table in an annular array mode and L-shaped rotating blocks, when an electric push rod contracts to drive the clamping table to move, the pushing grooves push the four L-shaped rotating blocks to synchronously rotate around a rotating shaft frame, a threaded rod in threaded connection drives four rubber blocks to move towards the center of the clamping table, annular four-point synchronous clamping is formed, and the clamping effect is improved. The clamping device is particularly suitable for multi-point contact fixing of the cambered surface plunger, the clamping stability is effectively improved, and the problem of clamping looseness caused by a single traditional clamping point position is solved.

Description

Technical Field

[0001] This utility model relates to the field of plunger processing, specifically a flipping device for plunger processing. Background Technology

[0002] The working principle of a hydraulic valve is to use the cooperation of a plunger and a valve body to connect, disconnect, or change the flow direction of hydraulic oil, thereby enabling the hydraulic actuator and its drive mechanism to start, stop, or change the direction of movement. Currently, there are many types of hydraulic valves, and the plunger structures are also diverse. The plunger controls the flow of hydraulic oil through its working surface cooperating with the valve body. When machining the plunger, it needs to be flipped to facilitate machining on both sides.

[0003] In the prior art, such as in publication number CN222134150U, a plunger machining positioning device is disclosed. It includes a machining table, with a fixed plate fixedly mounted on the upper surface of the machining table. Two sliding grooves are formed on the front of the fixed plate. An electric slide rail is fixedly mounted on the inner wall of each sliding groove. A slider is slidably connected to the outer surface of each electric slide rail. The outer surface of each slider contacts the inner wall of the sliding groove. A bracket is fixedly mounted on the front of each slider. A first clamping plate is fixedly mounted on the side of the two brackets that are close to each other. A second clamping plate is fixedly mounted on the front of the fixed plate. This plunger machining positioning device, by setting up a machining table, fixed plate, sliding grooves, electric slide rails, sliders, brackets, first clamping plate, second clamping plate, electric push rod, positioning plate, and positioning hole, uses the first and second clamping plates to fix the solenoid valve in a designated position, thereby enabling automatic positioning of the solenoid valve using the electric slide rails, etc.

[0004] Although the aforementioned patent uses an electric push rod to move the positioning plate to clamp the plunger, there are few clamping points when clamping the plunger during flipping. This is especially true for plungers with curved surfaces, where the limited number of clamping points can lead to unstable clamping. Furthermore, the lack of a structure to monitor the clamping force can result in excessively high clamping forces that damage the plunger surface, or insufficient clamping forces that cause the plunger to loosen. Therefore, a flipping device for plunger processing is proposed to address these issues. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, there are few clamping points when clamping plungers during flipping, especially for plungers with curved surfaces, where the limited number of clamping points can lead to unstable clamping. At the same time, the lack of a structure to monitor the clamping force can easily result in problems such as excessive clamping force causing damage to the plunger surface or insufficient clamping force causing the plunger to loosen. This utility model proposes a flipping device for plunger processing.

[0006] The technical solution adopted by this utility model to solve its technical problem is: the flipping device for plunger processing of this utility model includes a bracket, a drive motor is fixedly connected to the back of the bracket, the output end of the drive motor passes through the bracket and is fixedly connected to a clamping assembly, and an intelligent control assembly is fixedly connected to the side of the bracket.

[0007] The clamping assembly includes an electric push rod fixedly connected to the output end of a drive motor. One end of the electric push rod is fixedly connected to a clamping platform. The side of the clamping platform is provided with push grooves in a circular array. Each push groove is provided with an L-shaped rotating block. A rotating shaft frame is rotatably connected to the surface of the L-shaped rotating block. The rotating shaft frame is fixedly connected to the side of the bracket in a circular array. The other end of the L-shaped rotating block is threaded with a screw. One end of the screw is fixedly connected to a rubber block with an internal cavity.

[0008] The intelligent control component includes a device block fixedly connected to the side of the bracket, a control board sleeved inside the device block, a pressure sensor electrically connected to the surface of the control board, and the pressure sensor fixedly connected to the cavity inside the rubber block.

[0009] Preferably, the L-shaped rotating block of the clamping assembly is rotatably connected to the side of the bracket via a rotating shaft frame, and the other end of the L-shaped rotating block is threadedly connected to a screw rod, and one end of the screw rod is fixedly connected to a rubber block with an internal cavity.

[0010] Preferably, the control board inside the device block of the intelligent control component is electrically connected to the pressure sensor, and the pressure sensor is fixedly installed inside the cavity of the rubber block.

[0011] Preferably, the side of the clamping platform is provided with push grooves in a circular array, and the L-shaped rotating blocks inside each push groove are rotatably connected by a rotating shaft frame, which is fixed to the side of the support in a circular array.

[0012] Preferably, the pressure sensor inside the rubber block monitors the clamping pressure in real time and adjusts the extension and retraction of the electric push rod through the control board of the intelligent control component to control the clamping force.

[0013] Preferably, when the electric push rod retracts, it drives the clamping table to move. The push groove on the side of the clamping table pushes the L-shaped rotating block to rotate around the rotating shaft frame. The screw at the other end of the L-shaped rotating block drives the rubber block to move towards the center of the clamping table to clamp the plunger. The pressure sensor inside the rubber block monitors the pressure signal in real time and transmits it to the intelligent control component.

[0014] The advantages of this utility model are:

[0015] 1. This utility model uses a linkage structure design of push grooves and L-shaped rotating blocks in a ring array on the side of the clamping table. When the electric push rod retracts and moves the clamping table, the push grooves push the four L-shaped rotating blocks to rotate synchronously around the rotating shaft frame. This causes the threaded screw to move the four rubber blocks toward the center of the clamping table, forming a ring-shaped four-point synchronous clamping. This is especially suitable for multi-point contact fixing of arc-shaped plungers, effectively improving clamping stability and avoiding the clamping loosening problem caused by the single clamping point in traditional methods.

[0016] 2. This utility model uses a pressure sensor fixedly installed in the cavity of the rubber block and electrically connected to the control board of the intelligent control component. During the clamping process, the pressure sensor monitors the pressure signal of the contact surface between the rubber block and the plunger in real time, and dynamically adjusts the extension and retraction of the electric push rod through the control board to ensure that the clamping force is always within the preset safety range. This can prevent excessive clamping force from causing pressure damage to the plunger surface, and also avoid insufficient clamping force from causing plunger displacement, thus achieving intelligent and precise control. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the pressure sensor structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0022] In the diagram: 1. Bracket; 2. Drive motor; 3. Clamping assembly; 31. Electric push rod; 32. Clamping table; 33. Push groove; 34. L-shaped rotating block; 35. Rotary shaft frame; 36. Screw; 37. Rubber block; 4. Intelligent control assembly; 41. Equipment block; 42. Control board; 43. Pressure sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1-4 As shown, a flipping device for plunger processing includes a bracket 1. A drive motor 2 is fixedly connected to the back of the bracket 1. The output end of the drive motor 2 passes through the bracket 1 and is fixedly connected to a clamping assembly 3. A smart control assembly 4 is fixedly connected to the side of the bracket 1. The clamping assembly 3 includes an electric push rod 31 fixedly connected to the output end of the drive motor 2. One end of the electric push rod 31 is fixedly connected to a clamping platform 32. The side of the clamping platform 32 has push grooves 33 arranged in a ring array. Each push groove 33 has an L-shaped rotating block 34 inside. A rotating shaft frame 35 is rotatably connected to the surface of the L-shaped rotating block 34. The rotating shaft frame 35 is fixedly connected to the side of the bracket 1 in a ring array. The other end of the L-shaped rotating block 34 is threadedly connected to a screw 36. One end of the screw 36 is fixedly connected to a rubber block 37 with an internal cavity.

[0025] During operation, the electric push rod 31 at the output end of the drive motor 2 drives the clamping table 32 to move laterally. The annular push groove 33 on the side of the clamping table 32 simultaneously pushes multiple L-shaped rotating blocks 34, causing the L-shaped rotating blocks 34 to rotate around the annularly distributed rotating shaft frame 35 toward the center of the clamping table 32, pushing the threaded screw 36 to drive the rubber block 37 to clamp the plunger. The plunger is uniformly clamped at multiple points by the four annularly symmetrically distributed rubber blocks 37. With the clamping table 32 as the supporting bottom surface, the clamping stability of the arc-shaped plunger is ensured, avoiding the easy displacement problem of traditional single-sided clamping.

[0026] Furthermore, the intelligent control component 4 includes a device block 41 fixedly connected to the side of the bracket 1, a control board 42 is sleeved inside the device block 41, a pressure sensor 43 is electrically connected to the surface of the control board 42, and the pressure sensor 43 is fixedly connected to the cavity inside the rubber block 37.

[0027] During operation, the Honeywell rubber block 37 is embedded in the cavity during clamping. The pressure sensor 43 of HSCMRRN001PD2A3 detects the dynamic pressure data of the contact between the clamping surface and the plunger in real time, and transmits the signal to the control board 42 of the intelligent control component 4, which is a microcontroller development board of STMicroelectronics STM32F407VGT6. The control board 42 determines whether the clamping force exceeds the limit by setting a threshold. If the pressure is too high, the electric push rod 31 is controlled to extend in the opposite direction to slightly release the clamping force. If the pressure is insufficient, the electric push rod 31 is further retracted to increase the clamping strength, thereby realizing dynamic closed-loop adjustment. This ensures that the clamping is firm while protecting the integrity of the plunger surface, and supports the subsequent drive motor 2 to drive the clamping component 3 to flip the surface stably.

[0028] Furthermore, the side of the clamping table 32 is provided with push grooves 33 in a ring array. Each push groove 33 is provided with an L-shaped rotating block 34 rotatably connected by a rotating shaft frame 35. The rotating shaft frame 35 is fixed to the side of the support 1 in a ring array.

[0029] During operation, when the electric push rod 31 retracts and drives the clamping table 32 to move laterally, the push groove 33 pushes the L-shaped rotating block 34 to rotate synchronously around the rotating shaft frame 35. This causes the screw 36 at the other end of the four L-shaped rotating blocks 34, which are distributed in a ring, to drive the rubber block 37 to converge towards the center of the clamping table 32, forming a four-point synchronous clamping structure. This structure is especially suitable for fixing the curved surface of the plunger. By applying force evenly through the ring-shaped symmetrical clamping points, it avoids plunger offset or tilting caused by unilateral clamping, significantly improving clamping stability and adaptability to plungers of different shapes.

[0030] Furthermore, the pressure sensor 43 inside the rubber block 37 monitors the clamping pressure in real time and adjusts the extension and retraction of the electric push rod 31 through the control board 42 of the intelligent control component 4 to control the clamping force.

[0031] During operation, when the rubber block 37 contacts the plunger surface, the pressure sensor 43 transmits a dynamic pressure signal to the control board 42. The control board 42 determines the current clamping force state based on a preset threshold. If the pressure exceeds the upper limit, it controls the electric push rod 31 to extend to reduce the clamping force. If the pressure is below the lower limit, it further retracts the electric push rod 31 to enhance the clamping strength, thereby achieving closed-loop control of the clamping force. This prevents the rubber block 37 from damaging the plunger surface due to excessive pressure and avoids insufficient clamping force causing the plunger to slip during the flipping process, ensuring the safety and accuracy of the processing.

[0032] Working principle: When the electric push rod 31 at the output end of the drive motor 2 retracts, it drives the clamping platform 32 to move laterally. The push grooves 33 in the annular array on the side of the clamping platform 32 push the L-shaped rotating block 34 inside to rotate around the rotating shaft frame 35. This causes the screw 36 threaded to the other end of the L-shaped rotating block 34 to drive the rubber block 37 to converge towards the center of the clamping platform 32. The plunger is clamped at four points in an annular shape by the four symmetrically distributed rubber blocks 37. During the clamping process, the pressure sensor 43 fixed in the cavity inside the rubber block 37 monitors the contact pressure signal in real time and transmits it to the control board 42 of the intelligent control component 4. The control board 42 dynamically adjusts the extension and retraction of the electric push rod 31 according to the preset pressure threshold to maintain stable clamping force. After clamping is completed, the drive motor 2 drives the clamping component 3 to rotate as a whole, realizing the plunger flipping operation.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flipping device for plunger processing, characterized in that: Includes a bracket (1), a drive motor (2) is fixedly connected to the back of the bracket (1), the output end of the drive motor (2) passes through the bracket (1) and is fixedly connected to a clamping assembly (3), and a smart control assembly (4) is fixedly connected to the side of the bracket (1). The clamping assembly (3) includes an electric push rod (31) fixedly connected to the output end of the drive motor (2). One end of the electric push rod (31) is fixedly connected to a clamping platform (32). The side of the clamping platform (32) is provided with push grooves (33) in a ring array. Each push groove (33) is provided with an L-shaped rotating block (34). The surface of the L-shaped rotating block (34) is rotatably connected to a rotating shaft frame (35). The rotating shaft frame (35) is fixedly connected to the side of the bracket (1) in a ring array. The other end of the L-shaped rotating block (34) is threadedly connected to a screw (36). One end of the screw (36) is fixedly connected to a rubber block (37) with an internal cavity. The intelligent control component (4) includes a device block (41) fixedly connected to the side of the bracket (1). A control board (42) is sleeved inside the device block (41). A pressure sensor (43) is electrically connected to the surface of the control board (42). The pressure sensor (43) is fixedly connected to the cavity inside the rubber block (37).

2. The flipping device for plunger processing according to claim 1, characterized in that: The L-shaped rotating block (34) of the clamping assembly (3) is rotatably connected to the side of the bracket (1) via a rotating shaft frame (35). The other end of the L-shaped rotating block (34) is threadedly connected to a screw (36). One end of the screw (36) is fixedly connected to a rubber block (37) with an internal cavity.

3. The flipping device for plunger processing according to claim 1, characterized in that: The control board (42) inside the device block (41) of the intelligent control component (4) is electrically connected to the pressure sensor (43), and the pressure sensor (43) is fixedly installed in the cavity of the rubber block (37).

4. A flipping device for plunger processing according to claim 1, characterized in that: The side of the clamping platform (32) is provided with push grooves (33) in a ring array. Each push groove (33) is provided with an L-shaped rotating block (34) which is rotatably connected by a rotating shaft frame (35). The rotating shaft frame (35) is fixed to the side of the support (1) in a ring array.

5. A flipping device for plunger processing according to claim 1, characterized in that: The pressure sensor (43) inside the rubber block (37) monitors the clamping pressure in real time and adjusts the extension and retraction of the electric push rod (31) through the control board (42) of the intelligent control component (4) to control the clamping force.

6. A flipping device for plunger processing according to claim 1, characterized in that: When the electric push rod (31) retracts, it drives the clamping platform (32) to move. The push groove (33) on the side of the clamping platform (32) pushes the L-shaped rotating block (34) to rotate around the rotating shaft frame (35). The screw (36) at the other end of the L-shaped rotating block (34) drives the rubber block (37) to move towards the center of the clamping platform (32) to clamp the plunger. The pressure sensor (43) in the rubber block (37) monitors the pressure signal in real time and transmits it to the intelligent control component (4).

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