A soft rubber abrasive grinding workpiece clamping table

Abstract

This utility model discloses a workpiece clamping table for soft rubber abrasive grinding, comprising: a base plate; an abrasive inlet chamber with a first and a second material chamber separated therefrom; a first positioning sleeve communicating with the interior of the first material chamber; and a clamping mechanism including a telescopic component fixed to a first mounting surface, a clamping block moved by the telescopic component toward or away from the first positioning sleeve, a second positioning sleeve mounted on the clamping block, and a connecting pipe. The clamping block is connected to the telescopic component, one end of the second positioning sleeve is used to connect to the workpiece, and the other end is connected to the second material chamber through the connecting pipe. This utility model sets up a coaxial first and second material chamber within the abrasive inlet chamber, allowing the pressure mechanism of the abrasive flow polishing machine to be arranged vertically, effectively reducing the polishing machine's footprint, reducing the volume of the abrasive inlet chamber itself, and shortening the flow path of the abrasive flow. The workpiece processing station is located outside the pressure mechanism, improving the convenience and safety of workpiece replacement.

Description

Technical Field

[0001] This utility model belongs to the field of polishing technology, and specifically relates to a workpiece clamping table for grinding soft rubber abrasive particles. Background Technology

[0002] After holes are drilled in the sidewalls of tubular workpieces, burrs are left around the small holes. Typically, a Swiss-type lathe is used for hole machining and deburring, but this method is time-consuming, ineffective, and leaves residual microburrs and small debris inside the holes that are difficult to clean, affecting the workpiece's performance when put into use. Therefore, abrasive flow machining is needed to deburr the workpiece. Currently, only workpiece clamping tables for abrasive flow machining of larger inner diameter tubular workpieces are available, such as the patent with publication number CN215036571U. However, this method has the following problems: the pressure mechanisms are arranged side-by-side, resulting in a wider overall structure for the abrasive flow composite machine; the storage chambers for each direction of the abrasive flow are implemented with two different structures, and the ineffective flow path of the abrasive flow is long, further increasing the size of the composite machine; and the workpiece is located between the pressure mechanisms, posing a significant safety risk and inconvenience when changing workpieces. Summary of the Invention

[0003] The purpose of this invention is to provide a workpiece clamping table that can achieve vertically opposed pressure mechanisms and workpiece processing stations not located between the pressure mechanisms, using soft rubber abrasives for grinding.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a workpiece clamping table for grinding soft rubber abrasive particles, comprising:

[0005] The base plate has a first mounting surface;

[0006] The abrasive bin is installed on the first mounting surface and has a first bin and a second bin that are separated from each other.

[0007] The first positioning sleeve is tubular and is disposed on the grinding feed chamber, with its interior communicating with the interior of the first feed chamber.

[0008] The clamping mechanism includes a telescopic member fixed to the first mounting surface, a clamping block that is driven by the telescopic member to move toward or away from the first positioning sleeve, a second positioning sleeve mounted on the clamping block, and a connecting pipe. The clamping block is connected to the telescopic member. One end of the second positioning sleeve is used to connect to the workpiece, and the other end is connected to the second hopper through the connecting pipe. When the workpiece is placed between the second positioning sleeve and the first positioning sleeve, the second hopper, the connecting pipe, the second positioning sleeve, the workpiece, the first positioning sleeve, and the first hopper are connected sequentially in either a forward or reverse direction.

[0009] In another embodiment, the abrasive feed chamber is provided with an upper connector that connects to the second feed chamber. The upper connector is connected to the second positioning sleeve through a connecting pipe. When the workpiece is placed between the second positioning sleeve and the first positioning sleeve, the second feed chamber, the upper connector, the connecting pipe, the second positioning sleeve, the workpiece, the first positioning sleeve, and the first feed chamber are connected sequentially in either a forward or reverse direction.

[0010] In another embodiment, the clamping mechanism includes a lower connector disposed on the clamping block. The clamping block has a channel connecting the second positioning sleeve and the lower connector. The lower connector is connected to the upper connector through a connecting pipe. When the workpiece is placed between the second positioning sleeve and the first positioning sleeve, the second hopper, the upper connector, the connecting pipe, the lower connector, the clamping block, the second positioning sleeve, the workpiece, the first positioning sleeve, and the first hopper are connected sequentially in a forward or reverse direction.

[0011] In another embodiment, the workpiece clamping table further includes a positioning support block disposed on the first mounting surface. The positioning support block is located between the first positioning sleeve and the clamping block and has a V-shaped groove on its upper end face. When the workpiece is placed in the V-shaped groove, the workpiece is coaxially disposed with the second positioning sleeve and the first positioning sleeve.

[0012] In another embodiment, the base plate has a second mounting surface, and the workpiece clamping table further includes a collection box disposed on the second mounting surface. The collection box is located below the workpiece clamping position formed between the first positioning sleeve and the second positioning sleeve, which facilitates the collection of abrasive particles overflowing from the small holes on the workpiece's circumferential surface.

[0013] In another embodiment, the control switch of the telescopic component is installed on the side of the material collection box. The control switch is located on one side of the workpiece processing position, which is convenient to operate and has high safety.

[0014] In another embodiment, the abrasive feed chamber includes an abrasive feed body and a partition plate. The abrasive feed body has a through first hole, and an annular mounting ring is provided on the inner circumferential surface of the abrasive feed body forming the first through hole. The partition plate is sealed and fixed on the mounting ring and divides the first through hole into a first feed chamber and a second feed chamber. The axes of the first feed chamber and the second feed chamber are collinear, which allows the pressure mechanism to be set up vertically and vertically, reducing the footprint of the pressure mechanism.

[0015] In another embodiment, the partition plate includes a first partition plate that is circular on the upper end face of the mounting ring and a second partition plate that is circular on the lower end face of the mounting ring. The first partition plate, the second partition plate and the mounting ring are coaxially arranged, and the outer peripheral surfaces of the first partition plate and the second partition plate are sealed and fitted to the inner peripheral surface of the abrasive feed body that forms the first through hole. By providing two partition plates, each bearing pressure in one direction, the problem of a single partition plate easily loosening after bearing pressure in both directions is avoided.

[0016] In another embodiment, a first sealing ring is provided between the first partition plate and the mounting ring, a second sealing ring is provided between the lower end face of the abrasive feed body and the first mounting surface, and a third sealing ring is provided on the upper end face of the abrasive feed body. The sealing rings improve the sealing effect between the first partition plate and the mounting ring, between the lower end face of the abrasive feed body and the first mounting surface, and between the upper end face of the abrasive feed body and the upper mold of the pressure mechanism.

[0017] In another embodiment, a second through hole is provided on the first mounting surface to connect to the second hopper, the lower die of the hydraulic press is matched with the second through hole and the second hopper, and the upper die of the hydraulic press is matched with the first hopper.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model sets up a first material bin and a second material bin on the same axis in the abrasive inlet bin, so that the pressure mechanism of the abrasive flow polishing machine can be set up vertically, which effectively reduces the floor space of the polishing machine, reduces the volume of the abrasive inlet bin itself, and shortens the flow path of the abrasive flow; the workpiece processing station is located outside the pressure mechanism, which improves the convenience and safety of changing workpieces. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is an exploded view of the present invention (the connecting tube is not shown);

[0021] Figure 3 This is the front view of the present invention (the connecting pipe is not shown);

[0022] Figure 4 for Figure 3 AA sectional view. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0024] like Figure 1 As shown, the workpiece clamping table for soft rubber abrasive grinding includes: a base plate 9, an abrasive feed chamber 1, a first positioning sleeve 31, a clamping mechanism 2, a positioning support block 4, and a material collection box 5.

[0025] The base plate 9 has a first mounting surface 91 and a second mounting surface 92; the grinding feed chamber 1 is mounted on the first mounting surface 91, and has a first feed chamber 11 and a second feed chamber 12 that are separated, and the grinding feed chamber 1 has an upper connector 13 that connects to the second feed chamber 12; the first positioning sleeve 31 is tubular and is located on the grinding feed chamber 1, and its interior is connected to the interior of the first feed chamber 11.

[0026] Specifically, such as Figure 2-4 As shown, the clamping mechanism 2 includes a telescopic member 21 fixed on the first mounting surface 91, a clamping block 22 driven by the telescopic member 21 to move toward or away from the first positioning sleeve 31, a second positioning sleeve 32 mounted on the clamping block 22, a connecting pipe 23, and a lower connector 24 provided on the clamping block 22. The clamping block 22 is connected to the telescopic member 21, which can be a cylinder, a hydraulic cylinder, or a linear motor. One end of the second positioning sleeve 32 is used to connect to the workpiece 6, and the other end is connected to the second hopper 12 through the connecting pipe 23. A channel connecting the second positioning sleeve 32 and the lower connector 24 is opened in the clamping block 22. The upper connector 13 is connected to the second positioning sleeve 32 through the connecting pipe 23, and the lower connector 24 is connected to the upper connector 13 through the connecting pipe 23.

[0027] The positioning support block 4 is located on the first mounting surface 91. The positioning support block 4 is located between the first positioning sleeve 31 and the clamping block 22, and its upper end face is provided with a V-groove 41. When the workpiece 6 is placed in the V-groove 41, the workpiece 6 is coaxially arranged with the second positioning sleeve 32 and the first positioning sleeve 31.

[0028] The collection box 5 is located on the second mounting surface 92, below the workstation where the workpiece 6 is clamped, formed between the first positioning sleeve 31 and the second positioning sleeve 32, facilitating the collection of abrasive particles overflowing from the small holes on the periphery of the workpiece 6. The control switch 8 of the telescopic component 21 is mounted on the side of the collection box 5, located on one side of the workpiece 6 machining position, facilitating operation and ensuring high safety.

[0029] The abrasive feed chamber 1 includes an abrasive feed body 14 and a partition plate. The abrasive feed body 14 has a through hole 141, and an annular mounting ring 17 is provided on the inner circumferential surface of the abrasive feed body 14 forming the first through hole. The partition plate includes a first partition plate 15, which is circular, located on the upper end surface of the mounting ring 17, and a second partition plate 16, which is circular, located on the lower end surface of the mounting ring 17. The first through hole 141 above the first partition plate 15 forms a second feed chamber 12, and the first through hole 141 below the second partition plate 16 forms a first feed chamber 11. The first partition plate 15 and the second partition plate 16 are respectively fixed to both sides of the mounting ring 17 by bolt assemblies 18. The first partition plate 15, the second partition plate 16, and the mounting ring 17 are coaxially arranged, and the outer circumferential surfaces of the first partition plate 15 and the second partition plate 16 are sealed and fitted to the inner circumferential surface of the abrasive feed body 14 forming the first through hole. The two partition plates are provided, each bearing pressure in one direction, which avoids the problem of a single partition plate easily loosening after bearing pressure in both directions. A first sealing ring 71 is provided between the first partition plate 15 and the mounting ring 17, a second sealing ring 72 is provided between the lower end face of the abrasive feed body 14 and the first mounting surface 91, and a third sealing ring 73 is provided on the upper end face of the abrasive feed body 14. The sealing rings improve the sealing effect between the first partition plate 15 and the mounting ring 17, between the lower end face of the abrasive feed body 14 and the first mounting surface 91, and between the upper end face of the abrasive feed body 14 and the upper mold of the pressure mechanism.

[0030] A second through hole 93 is provided on the first mounting surface 91 to connect to the first material bin 11. The lower mold of the hydraulic press is matched with the second through hole 93 and the first material bin 11, and the upper mold of the hydraulic press is matched with the second material bin 12.

[0031] The principle of this utility model is as follows: First, the abrasive flow is placed in the second hopper 12. Then, the workpiece 6 is placed on the positioning support block 4 and positioned between the second positioning sleeve 32 and the first positioning sleeve 31. Then, the control switch 8 is operated to cause the telescopic component 21 to drive the clamping block 22 to move towards the abrasive inlet hopper 1, thereby clamping and fixing the workpiece 6 between the second positioning sleeve 32 and the first positioning sleeve 31 and connecting the second positioning sleeve 32 and the first positioning sleeve 31. Subsequently, the upper die of the pressure mechanism of the polishing machine moves towards the abrasive inlet hopper 1 and the outer ring of the upper die is attached to the upper end surface of the abrasive inlet hopper 1. The lower die moves towards the abrasive inlet hopper 1 and is attached to the lower end surface of the base. Then, the upper die head in the upper mold moves downward to squeeze the abrasive flow in the second material bin 12, causing it to flow sequentially along the second material bin 12, upper connector 13, connecting pipe 23, lower connector 24, clamping block 22, second positioning sleeve 32, workpiece 6, first positioning sleeve 31, and first material bin 11. After that, the upper die head resets, and the lower die head moves upward to reverse the flow of abrasive flow that has entered the first material bin 11 and press it back into the second material bin 12, completing the deburring and forming of slight R-angles. During this process, a small amount of abrasive flow will flow out from the small hole 61 on the periphery of the workpiece 6 and be collected in the collection box 5. The polishing machine with the upper and lower parts in contact is not the focus of this utility model and will not be described in detail here.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A workpiece clamping table for grinding with soft rubber abrasive grains, characterized in that, It includes: The base plate has a first mounting surface; The abrasive bin is installed on the first mounting surface and has a first bin and a second bin that are separated from each other. The first positioning sleeve is tubular and is disposed on the grinding feed chamber, with its interior communicating with the interior of the first feed chamber. The clamping mechanism includes a telescopic member fixed to the first mounting surface, a clamping block that is driven by the telescopic member to move toward or away from the first positioning sleeve, a second positioning sleeve mounted on the clamping block, and a connecting pipe. The clamping block is connected to the telescopic member, and one end of the second positioning sleeve is used to connect to the workpiece, and the other end is connected to the second hopper through the connecting pipe.

2. The workpiece clamping table for soft rubber abrasive grinding according to claim 1, characterized in that: The abrasive feed chamber is equipped with an upper connector that connects to the second feed chamber, and the upper connector is connected to the second positioning sleeve through a connecting pipe.

3. The workpiece clamping table for soft rubber abrasive grinding according to claim 2, characterized in that: The clamping mechanism includes a lower connector disposed on the clamping block. The clamping block has a channel connecting the second positioning sleeve and the lower connector. The lower connector is connected to the upper connector through a connecting pipe.

4. The workpiece clamping table for soft rubber abrasive grinding according to claim 1, characterized in that: The workpiece clamping table also includes a positioning support block disposed on the first mounting surface. The positioning support block is located between the first positioning sleeve and the clamping block, and its upper end face is provided with a V-shaped groove.

5. The workpiece clamping table for soft rubber abrasive grinding according to claim 1, characterized in that: The base plate has a second mounting surface, and the workpiece clamping table further includes a material collection box disposed on the second mounting surface. The material collection box is located below the workpiece clamping station formed between the first positioning sleeve and the second positioning sleeve.

6. The workpiece clamping table for soft rubber abrasive grinding according to claim 5, characterized in that: The control switch for the telescopic component is installed on the side of the collection box.

7. The workpiece clamping table for soft rubber abrasive grinding according to claim 1, characterized in that: The abrasive feed chamber includes an abrasive feed body and a partition plate. The abrasive feed body has a through first hole, and an annular mounting ring is provided on the inner circumferential surface of the abrasive feed body forming the first through hole. The partition plate is sealed and fixed on the mounting ring and divides the first through hole into a first feed chamber and a second feed chamber.

8. The workpiece clamping table for soft rubber abrasive grinding according to claim 7, characterized in that: The partition plate includes a first partition plate that is circular on the upper end face of the mounting ring and a second partition plate that is circular on the lower end face of the mounting ring. The first partition plate, the second partition plate and the mounting ring are coaxially arranged and the outer peripheral surfaces of the first partition plate and the second partition plate are sealed and fitted to the inner peripheral surface of the abrasive feed body that forms the first through hole.

9. The workpiece clamping table for soft rubber abrasive grinding according to claim 8, characterized in that: A first sealing ring is provided between the first partition plate and the mounting ring, a second sealing ring is provided between the lower end face of the abrasive feed body and the first mounting surface, and a third sealing ring is provided on the upper end face of the abrasive feed body.

10. The workpiece clamping table for soft rubber abrasive grinding according to claim 7, characterized in that: A second through hole is provided on the first mounting surface to connect to the second hopper.

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