A dry sand blasting deburring station with a plunger and its equipment

Abstract

The utility model relates to a kind of plunger dry sand blasting deburring station and its equipment, including jig, self-rotation drive unit and pressure rod assembly, different model plunger's quick changeover and accurate positioning are realized by the clamp of detachable installation, plunger is rotated at uniform speed with the aid of self-rotation drive unit, cooperate the pressure rod assembly of side setting and effectively cover central hole while pressing plunger upper end face, both ensure the stability of plunger when sand blasting operation, and thoroughly eliminate the risk of abrasive into precision central hole, to realize each slot burr efficient, uniform removal at the same time, significantly improve the quality stability and product qualification rate of deburring process, provide important guarantee for the reliable assembly and long-term stable operation of plunger couple.

Description

Technical Field

[0001] This utility model relates to the field of plunger processing technology, and in particular to a plunger dry sandblasting deburring station and its equipment. Background Technology

[0002] As a core component of the mechanical fuel pump in a diesel engine, plunger 100... Figure 1 As shown, the outer working circle is machined with various groove types such as straight groove 101, inclined groove 102, horizontal groove 103, starting groove 104 and ring groove 105. After grinding, burrs are easily generated at the junction of the grooves. In the existing technology, manual steel wire wheel brushes are mainly used for deburring, which is not only inefficient and the deburring effect is unstable, but also the abrasive is easy to enter the precision center hole of the plunger 100 end face during the process, which leads to jamming failure in subsequent assembly and use.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a plunger dry sandblasting deburring station and its equipment, which solves the problems of low efficiency, unstable deburring effect, and the easy entry of abrasive into the precision center hole of the plunger end face during the process, leading to jamming failures in subsequent assembly and use.

[0005] The technical solution adopted in this utility model is as follows: A plunger dry blasting deburring station, characterized in that it includes: A fixture on which a clamp is detachably mounted, the clamp having a positioning cavity that matches the outer contour of the lower end of the plunger; A self-rotation drive unit is installed at the lower end of the fixture and is connected to the fixture in a transmission manner. The self-rotation drive unit drives the fixture and the clamp to rotate around the central axis. A pressure bar assembly is disposed on the side of the fixture, and the end of the pressure bar assembly is provided with a pressure head, which presses against the upper end face of the plunger and covers its central hole.

[0006] A further technical solution is that the self-rotation drive unit includes a fixed platform and a rotating platform. The fixed platform is fixedly installed, and the bottom end of the rotating platform is provided with a circular groove that matches the top end of the fixed platform. The bottom end of the rotating platform is rotatably located at the top end of the fixed platform, and the fixture is fixedly connected to the top end of the rotating platform.

[0007] A further technical solution is that the self-rotation drive unit further includes a self-rotating spindle, a belt drive assembly, and a motor. The belt drive assembly is located at the lower end of the fixed platform. The fixed platform and the rotating platform are coaxially provided with a through groove and a transmission groove, respectively. The self-rotating spindle is rotatably disposed in the through groove. The top end of the self-rotating spindle is fixed in the transmission groove. The bottom end of the self-rotating spindle extends out of the through groove and is connected to the output end of the belt drive assembly. The motor is connected to the input end of the belt drive assembly. The power of the motor is transmitted to the self-rotating spindle connected to the fixture.

[0008] A further technical solution is that the belt drive assembly includes a drive belt and two pulleys, the output end of the motor is connected to one pulley, the bottom end of the self-rotating main shaft is connected to the other pulley, and the drive belt drives the two pulleys.

[0009] This utility model also discloses a plunger dry sandblasting deburring device, comprising: frame; A rotating disc is rotatably mounted on the frame. Several plunger dry sandblasting and deburring stations, as described above, are evenly arranged along the circumference of the rotating disc. The rotating disc is sequentially defined along the rotation path as a loading and unloading area, a sound and dust isolation area, a sandblasting area, and a sand blowing area. A revolution drive mechanism is located at the bottom of the revolution disk and drives the revolution disk to rotate intermittently; A sandblasting gun, comprising several of them, wherein the several sandblasting guns are arranged in the sandblasting area and around the fixture on the sandblasting area, wherein the spatial position and spray angle of the sandblasting guns are configured to simultaneously perform sandblasting operations on the straight grooves, inclined grooves, starting grooves, transverse grooves and circular grooves on the surface of the plunger when the plunger is clamped in the fixture and rotated.

[0010] A further technical solution is that the number of plunger dry sandblasting deburring stations on the orbital disk as described above is 16, and the orbital drive mechanism is configured to drive the orbital disk to rotate intermittently by 90°; the loading and unloading area, the sound insulation and dust isolation area, the sandblasting area and the sand blowing area are each separated by 4 stations.

[0011] A further technical solution is that the self-rotation drive unit also includes a mounting plate, which is coaxially arranged with the fixed platform. The mounting plate is located at the bottom end of the revolution disk and is connected to the bottom end of the fixed platform by bolts.

[0012] A further technical solution is that the belt drive assembly is located at the bottom end of the large rotating disc, and the bottom end of the rotating spindle passes through the large rotating disc and connects to the output end of the belt drive assembly with the mounting plate.

[0013] The beneficial effects of this utility model embodiment are as follows: (i) A plunger dry sandblasting deburring station includes a jig, a self-rotating drive unit, and a pressure rod assembly. Different plunger models can be quickly changed and precisely positioned through a detachable fixture. The self-rotating drive unit drives the plunger to rotate at a uniform speed. The pressure rod assembly set on the side effectively covers the center hole while pressing the upper end face of the plunger. This ensures the stability of the plunger during sandblasting and completely eliminates the risk of abrasive entering the precision center hole. Thus, while achieving efficient and uniform removal of burrs in each groove, it significantly improves the quality stability and product qualification rate of the deburring process, providing an important guarantee for the reliable assembly and long-term stable operation of the plunger assembly.

[0014] (ii) Furthermore, the self-rotation drive unit also includes a self-rotating spindle, a belt drive assembly, and a motor. The belt drive assembly is located at the lower end of the fixed platform. The fixed platform and the rotating platform are coaxially provided with a through slot and a transmission slot, respectively. The self-rotating spindle is rotatably disposed in the through slot. The top end of the self-rotating spindle is fixed in the transmission slot, and the bottom end of the self-rotating spindle extends out of the through slot and is connected to the output end of the belt drive assembly. The motor is connected to the input end of the belt drive assembly, and the power of the motor is transmitted to the self-rotating spindle connected to the fixture. For example, the belt drive assembly includes a drive belt and two pulleys. The output end of the motor is connected to one pulley, and the bottom end of the self-rotating spindle is connected to the other pulley. The drive belt drives and connects the two pulleys. By placing the motor at the lower end of the fixed platform and using belt drive to transmit power, the center of gravity of the entire rotating mechanism is effectively lowered, enhancing operational stability. The flexible transmission characteristics of the belt also buffer the vibration and impact during motor start-up, shutdown, and operation. The design of the self-rotating spindle passing through the fixed platform and the rotating platform accurately transmits the power from the lower part to the upper fixture and clamp, forming a stable rotation drive system. At the same time, this split structure facilitates independent inspection and maintenance of the drive components.

[0015] (III) Furthermore, the self-rotating drive unit also includes a mounting plate, which is coaxially arranged with the fixed platform. The mounting plate is located at the bottom of the orbital disk and connected to the bottom of the fixed platform via bolts. For example, a belt drive assembly is located at the bottom of the orbital disk, and the bottom of the self-rotating spindle passes through the orbital disk and connects to the output end of the belt drive assembly via the mounting plate. The mounting plate structure enables modular installation of the self-rotating drive unit on the orbital disk. The fixed platform is securely installed at the bottom of the orbital disk via bolts, ensuring a stable connection between the drive system of each workstation and the orbital platform. Simultaneously, the mounting plate provides a centralized mounting base for the belt drive assembly, allowing the motor, pulleys, and other transmission components to be neatly arranged below the orbital disk, optimizing space utilization and facilitating centralized maintenance and adjustment of the drive systems at each workstation. Attached Figure Description

[0016] Figure 1This is a front view schematic diagram of the plunger structure in this utility model.

[0017] Figure 2 This is a front view structural diagram of a plunger dry sandblasting deburring station according to the present invention.

[0018] Figure 3 This is a top view of the structure of a plunger dry sandblasting deburring device according to the present invention.

[0019] In the picture: 100. Plunger; 101. Straight groove; 102. Inclined groove; 103. Horizontal groove; 104. Starting groove; 105. Ring groove; 200. Fixture; 201. Clamp; 202. Positioning cavity; 300. Rotation drive unit; 310. Fixed platform; 311. Through groove; 320. Rotating platform; 321. Circular groove; 322. Transmission groove; 330. Rotating spindle; 340. Belt drive assembly; 341. Transmission belt; 342. Pulley; 350. Mounting disc; 400. Pressure rod assembly; 401. Pressure head; 500. Revolutionary disc; 600. Sandblasting gun. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] First embodiment: This embodiment discloses a plunger dry sandblasting deburring station, including a jig 200, a self-rotating drive unit 300, and a pressure rod assembly 400.

[0022] A clamp 201 is detachably mounted on the fixture 200. The clamp 201 has a positioning cavity 202 that matches the outer contour of the lower end of the plunger 100. A self-rotating drive unit 300 is mounted on the lower end of the fixture 200 and is connected to the fixture 200 for transmission. The self-rotating drive unit 300 drives the fixture 200 and the clamp 201 to rotate around the central axis. A pressure rod assembly 400 is disposed on the side of the fixture 200. The end of the pressure rod assembly 400 is provided with a pressure head 401. The pressure head 401 presses against the upper end face of the plunger 100 and covers its central hole.

[0023] Furthermore, the self-rotating drive unit 300 includes a fixed platform 310 and a rotating platform 320. The fixed platform 310 is fixedly installed, and the bottom end of the rotating platform 320 has a circular groove 321 that matches the top end of the fixed platform 310. The bottom end of the rotating platform 320 is rotatably mounted on the top end of the fixed platform 310, and the fixture 200 is fixedly connected to the top end of the rotating platform 320. The fixed platform 310 provides stable support, and the rotating platform 320 forms a precise fit with the top end of the fixed platform 310 through the circular groove 321 at its bottom, constituting a stable rotating support pair. This ensures the concentricity and smooth operation of the fixture 200 and clamp 201 during rotation, and effectively withstands the radial load generated during sandblasting operations. At the same time, this split structure facilitates independent maintenance and replacement of rotating components.

[0024] Furthermore, the self-rotation drive unit 300 also includes a self-rotating spindle 330, a belt drive assembly 340, and a motor. The belt drive assembly 340 is located at the lower end of the fixed platform 310. The fixed platform 310 and the rotating platform 320 are coaxially provided with a through groove 311 and a transmission groove 322, respectively. The self-rotating spindle 330 is rotatably disposed in the through groove 311. The top end of the self-rotating spindle 330 is fixed in the transmission groove 322, and the bottom end of the self-rotating spindle 330 extends out of the through groove 311 and is connected to the output end of the belt drive assembly 340. The motor is connected to the input end of the belt drive assembly 340, and the power of the motor is transmitted to the self-rotating spindle 330 connected to the fixture 200. For example, the belt drive assembly 340 includes a drive belt 341 and two pulleys 342. The output end of the motor is connected to one pulley 342, and the bottom end of the self-rotating spindle 330 is connected to the other pulley 342. The drive belt 341 drives and connects the two pulleys 342. By placing the motor at the lower end of the fixed platform 310 and using belt drive to transmit power, the center of gravity of the entire rotating mechanism is effectively lowered, the operational stability is enhanced, and the flexible transmission characteristics of the belt buffer the vibration and impact during motor start-up, shutdown and operation. The design of the self-rotating spindle 330 passing through the fixed platform 310 and the rotating platform 320 accurately transmits the power from the lower part to the upper fixture 200 and clamp 201, forming a stable rotation drive system. At the same time, this split structure facilitates independent inspection and maintenance of the drive components.

[0025] In operation, this embodiment is as follows: The operator first inserts the plunger 100 into the positioning cavity 202 of the fixture 201, then manipulates the pressure rod assembly 400 to move its pressure head 401 down and press the upper end face of the plunger 100 while covering the center hole. The self-rotation drive unit 300 is started, and the motor drives the self-rotation spindle 330 and the connected jig 200 and fixture 201 to rotate at a constant speed around the central axis through the belt drive assembly 340. At this time, the external sandblasting gun 600 can be used to sandblast and deburr the grooves on the surface of the rotating plunger 100. After the processing is completed, the rotation is stopped and the pressure rod is lifted to remove the processed part.

[0026] In this embodiment, the positioning cavity 202 of the fixture 201 and the pressure rod assembly 400 work together to achieve rapid and accurate positioning and reliable clamping of the plunger 100, while effectively preventing the central hole from being invaded by abrasive. Combined with the stable rotating pair formed by the fixed table 310 and the rotating table 320 and the smooth drive of the belt drive, the plunger 100 rotates at a uniform speed during the sandblasting process, so that the burrs in each slot are removed evenly and thoroughly. This not only significantly improves the deburring effect and consistency of a single station, but also lays a solid foundation for the integration of this station as a core module into an automated production line.

[0027] Second embodiment: This embodiment discloses a plunger dry sandblasting deburring device, including a frame, a large rotating disc 500, a rotating drive mechanism, and a sandblasting gun 600.

[0028] A rotating disk 500 is rotatably mounted on a frame. Several plunger 100 dry sandblasting deburring stations, as described above, are evenly arranged circumferentially on the rotating disk 500. The rotating disk 500 is sequentially divided into a loading / unloading area, a soundproof and dustproof area, a sandblasting area, and a sandblasting zone along its rotation path. For example, the rotating disk 500 has 16 plunger 100 dry sandblasting deburring stations as described above, and the rotation drive mechanism is configured to drive the rotating disk 500 to rotate intermittently by 90°. The loading / unloading area, the soundproof and dustproof area, the sandblasting zone, and the sandblasting zone are each separated by 4 stations.

[0029] The revolution drive mechanism is located at the bottom of the revolution disk 500 and drives the revolution disk 500 to rotate intermittently. There are several sandblasting guns 600, which are arranged in the sandblasting area and around the fixture 200 on the sandblasting area. The spatial position and spray angle of the sandblasting guns 600 are configured to simultaneously perform sandblasting operations on the straight groove 101, inclined groove 102, starting groove 104, transverse groove 103 and ring groove 105 on the surface of the plunger 100 when the plunger 100 is clamped in the fixture 201 and rotates.

[0030] Furthermore, the rotation drive unit 300 also includes a mounting plate 350, which is coaxially arranged with the fixed platform 310. The mounting plate 350 is located at the bottom end of the orbital disk 500 and connected to the bottom end of the fixed platform 310 by bolts. For example, a belt drive assembly 340 is located at the bottom end of the orbital disk 500, and the bottom end of the rotation spindle 330 passes through the orbital disk 500 and connects to the mounting plate 350 to the output end of the belt drive assembly 340. The mounting plate 350 structure enables the modular installation of the self-rotating drive unit 300 on the orbital plate 500. The fixing platform 310 is firmly installed at the bottom of the orbital plate 500 by bolt connection, so that the drive system of each workstation is stably connected to the orbital platform. At the same time, the mounting plate 350 provides a centralized mounting base for the belt drive assembly 340, so that the transmission components such as motor and pulley 342 can be neatly arranged under the orbital plate 500, which not only optimizes the space utilization, but also facilitates centralized maintenance and adjustment of the drive system of each workstation.

[0031] In operation, this embodiment is as follows: The operator loads and clamps the plunger 100 into the workstation fixture 201 in the loading and unloading area. The revolution drive mechanism drives the revolution disk 500 to rotate intermittently by 90°, so that the clamped plunger 100 passes through the sound insulation and dust isolation area, the sandblasting area and the sandblasting area in sequence. When the workstation enters the sandblasting area, the self-rotation drive unit 300 of the workstation is activated to drive the plunger 100 to rotate. Multiple sandblasting guns 600 arranged in this area simultaneously sandblast the various grooves on its surface from different angles. Then the workstation moves to the sandblasting area to remove the residual sand particles on the surface. Finally, the workstation returns to the loading and unloading area, where the operator unloads the processed parts and loads new parts to be processed. This cycle is repeated to achieve continuous automated production.

[0032] In this embodiment, by integrating multiple aforementioned plunger 100 dry sandblasting deburring stations into a large rotating disc 500 and dividing them into clearly defined functional areas, a highly efficient continuous operation system is constructed. The intermittent indexing rotation of the large rotating disc 500 enables precise flow between loading and unloading, dust isolation, sandblasting, and cleaning processes at each station. The independent rotation of each station in the sandblasting area, combined with the coordination of the multi-angle sandblasting guns 600, ensures that each plunger 100 receives uniform and comprehensive deburring treatment. Ultimately, while achieving large-scale automated production, this ensures high product quality and consistency, significantly improving production efficiency and process stability.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A plunger dry blasting deburring station, characterized in that, include: A fixture on which a clamp is detachably mounted, the clamp having a positioning cavity that matches the outer contour of the lower end of the plunger; A self-rotation drive unit is installed at the lower end of the fixture and is connected to the fixture in a transmission manner. The self-rotation drive unit drives the fixture and the clamp to rotate around the central axis. A pressure bar assembly is disposed on the side of the fixture, and the end of the pressure bar assembly is provided with a pressure head, which presses against the upper end face of the plunger and covers its central hole.

2. The plunger dry sandblasting deburring station according to claim 1, characterized in that: The self-rotation drive unit includes a fixed platform and a rotating platform. The fixed platform is fixedly installed, and the bottom end of the rotating platform has a circular groove that matches the top end of the fixed platform. The bottom end of the rotating platform is rotatably located at the top end of the fixed platform, and the fixture is fixedly connected to the top end of the rotating platform.

3. The plunger dry sandblasting deburring station according to claim 2, characterized in that: The self-rotation drive unit also includes a self-rotating spindle, a belt drive assembly, and a motor. The belt drive assembly is located at the lower end of the fixed platform. The fixed platform and the rotating platform are coaxially provided with a through groove and a transmission groove, respectively. The self-rotating spindle is rotatably disposed in the through groove. The top end of the self-rotating spindle is fixed in the transmission groove. The bottom end of the self-rotating spindle extends out of the through groove and is connected to the output end of the belt drive assembly. The motor is connected to the input end of the belt drive assembly, and the power of the motor is transmitted to the self-rotating spindle connected to the fixture.

4. The plunger dry sandblasting deburring station according to claim 3, characterized in that: The belt drive assembly includes a drive belt and two pulleys. The output end of the motor is connected to one of the pulleys, and the bottom end of the self-rotating spindle is connected to the other pulley. The drive belt drives and connects the two pulleys.

5. A plunger dry sandblasting deburring device, characterized in that, include: frame; A rotating disc is rotatably mounted on the frame, and a plurality of plunger dry sandblasting deburring stations as described in claim 4 are evenly arranged along the circumference of the rotating disc; the rotating disc is sequentially defined along the rotating path as a loading and unloading area, a sound and dust isolation area, a sandblasting area and a sand blowing area. A revolution drive mechanism is located at the bottom of the revolution disk and drives the revolution disk to rotate intermittently; A sandblasting gun, comprising several of them, wherein the several sandblasting guns are arranged in the sandblasting area and around the fixture on the sandblasting area, wherein the spatial position and spray angle of the sandblasting guns are configured to simultaneously perform sandblasting operations on the straight grooves, inclined grooves, starting grooves, transverse grooves and circular grooves on the surface of the plunger when the plunger is clamped in the fixture and rotated.

6. The plunger dry sandblasting deburring equipment according to claim 5, characterized in that: The orbital disc has 16 plunger dry sandblasting deburring stations as described in claim 4, and the orbital drive mechanism is configured to drive the orbital disc to rotate intermittently by 90°; the loading and unloading area, the sound insulation and dust isolation area, the sandblasting area and the sand blowing area are each separated by 4 stations.

7. The plunger dry sandblasting deburring equipment according to claim 5, characterized in that: The self-rotation drive unit also includes a mounting plate, which is coaxially arranged with the fixed platform. The mounting plate is located at the bottom end of the revolution disk and is connected to the bottom end of the fixed platform by bolts.

8. The plunger dry sandblasting deburring equipment according to claim 7, characterized in that: The belt drive assembly is located at the bottom of the large rotating disc, and the bottom of the rotating spindle passes through the large rotating disc and connects to the output end of the belt drive assembly via the mounting plate.

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