Workpiece sand blasting machine

Abstract

The workpiece sand blasting machine comprises a box body, a partition plate is fixedly arranged at the top in the box body and divides the interior of the box body into a storage cavity and a filter cavity, a conical groove is formed in the top end of the partition plate, the storage cavity communicates with the filter cavity through the conical groove, and a first electric telescopic rod is fixedly arranged in the middle of the top end of the box body; a piston rod of the first electric telescopic rod penetrates into the containing cavity and is provided with a sand blasting assembly, and the sand blasting assembly is composed of a bearing mechanism, a limiting mechanism and a sand blasting part. Through the arranged filtering mechanism, under the action of a second electric telescopic rod, a filtering box can drive a screen plate to move left and right, then large-particle impurities can be separated from a grinding material screen, recycling and reusing of the grinding material are facilitated, meanwhile, along with operation of the filtering mechanism, a bearing disc of a bearing mechanism can be driven to drive a workpiece to rotate, and through cooperation with a sand blasting gun, the sand blasting efficiency is improved. Sand blasting of the workpiece can be more uniform, and the sand blasting effect of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting machines, in particular to a workpiece sandblasting machine. Background Art

[0002] At present, when the existing sandblasting machine is in use, the abrasive sprayed out will be mixed with the dust produced by the sandblasting of the workpiece and accumulated inside the sandblasting machine body, which is not conducive to the recovery and reuse of the abrasive. In addition, manual operation is required, so that the fixing parts are moved close to each other to fix and clamp the workpiece, which is inconvenient to use and has low practicality.

[0003] The Chinese utility model patent (application number: CN202220077352.7) discloses "a mobile fully automatic environmentally friendly sandblasting machine, including a bottom plate, a wheel is installed at the bottom end of the bottom plate, a sandblasting machine body is installed at the upper end of the bottom plate, a spray gun is installed in the sandblasting machine body, and a round block is installed in the sandblasting machine body. The utility model drives two fixing parts to move closer to each other by moving two rectangular plates closer to each other, fixes and clamps the workpiece, and the spray gun performs sandblasting on the workpiece. The motor is started to rotate the turntable, and the rotation of the turntable will cause the workpiece to rotate, so that the sandblasting of the workpiece is more uniform and the treatment effect of the workpiece is better. The sandblasting machine fixes the workpiece to prevent the workpiece from detaching from the turntable when rotating, resulting in the surface of the workpiece not being sandblasted. It is more convenient to use and has a better treatment effect. The limit ring is rotatably installed in the annular groove, which plays a limiting role on the screw and improves the practicality of the sandblasting machine." The above patent can prove the defects of the prior art.

[0004] Therefore, we make improvements to this and propose a workpiece sandblasting machine. Summary of the invention

[0005] The utility model aims to solve the problem that when the existing sandblasting machine is in use, the abrasives sprayed out will be mixed with the dust produced by the sandblasting of the workpiece and accumulated inside the sandblasting machine body, which is not conducive to the recovery and reuse of the abrasives, and manual operation is required to make the fixing parts move close to each other to fix and clamp the workpiece, which is inconvenient to use and has low practicality.

[0006] In order to achieve the above-mentioned purpose of the invention, the utility model provides a workpiece sandblasting machine to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] It includes a box body, a partition is fixedly provided on the top of the box body, and the partition divides the interior of the box body into a storage chamber and a filter chamber, a conical groove is opened on the top of the partition, and the storage chamber and the filter chamber are communicated with each other through the conical groove, a first electric telescopic rod is fixedly provided in the middle of the top of the box body, the piston rod of the first electric telescopic rod penetrates into the storage chamber and is provided with a sandblasting assembly, the sandblasting assembly consists of a bearing mechanism, a limiting mechanism and a sandblasting part, a driving part matching the limiting mechanism is provided in the conical groove, a filtering mechanism is provided in the filter chamber, and a fan is embedded in the top of one side of the box body.

[0009] As a preferred technical solution of the present application, the supporting mechanism includes a connecting plate, the middle part of the top end of the connecting plate is fixedly connected to the piston rod of the first electric telescopic rod, connecting rods are fixedly provided on both sides of the bottom end of the connecting plate, a supporting plate is provided at the bottom between the two connecting rods, and the supporting plate is located at the bottom end of the conical groove, a first limiting ring is fixedly provided at the bottom end between the two connecting rods, and the first limiting ring is rotatably connected to the top end of the supporting plate.

[0010] As a preferred technical solution of the present application, the supporting mechanism also includes a first rotating shaft, the top end of the first rotating shaft is fixedly connected to the middle of the bottom end of the supporting plate, a pinion is fixedly provided on the first rotating shaft, the bottom end of the outer side of the supporting plate is provided with a protrusion, and the protrusion is interlaced and connected with the conical groove, and a sealing ring is embedded on the protrusion.

[0011] As a preferred technical solution of the present application, the limiting mechanism includes two dovetail sliders, a dovetail groove is opened in the middle of the top of the carrying plate, and the two dovetail sliders are slidably connected at both ends of the dovetail groove, a clamping plate is fixedly provided on the top of the dovetail slider, a limiting column is fixedly provided on one side of the clamping plate, and a first spring is sleeved on the limiting column.

[0012] As a preferred technical solution of the present application, the limit mechanism also includes two limit blocks, the two sides of the bottom end of the connecting plate are provided with convex rods, and the top of the limit block is fixedly connected to the convex rods, a limit groove is opened in the limit block, a hemispherical part is provided on one side of the limit groove, and one side of the hemispherical part passes through the limit block, and a second spring is fixedly provided between the other side of the hemispherical part and the limit groove, an L-shaped rod passes through the limit column, the first spring is fixedly installed between one end of the L-shaped rod and the clamping plate, and the other end of the L-shaped rod passes through the limit block and the second spring in sequence and is fixedly connected to the hemispherical part.

[0013] As a preferred technical solution of the present application, the sandblasting part includes a plurality of sandblasting guns, which are equidistantly distributed on both sides of the middle of the bottom end of the connecting plate, and the pipes of the sandblasting guns are interlaced and fixed with the connecting plate, and the pipes of the sandblasting guns pass through the box.

[0014] As a preferred technical solution of the present application, the driving part includes a second limiting ring, which is arranged at the bottom of the conical groove, and positioning plates are fixed on both sides of the top of the second limiting ring, and one side of the positioning plate is fixedly connected to the groove wall of the conical groove, and a positioning ring is rotatably connected inside the second limiting ring, and the positioning ring is matched with the hemispherical part.

[0015] As a preferred technical solution of the present application, the filtering mechanism includes a filter box, which is located at the top of the filter cavity, a sieve plate is embedded in the bottom end of the filter box, a rack is fixedly provided on one side of the filter box, a large gear matching the small gear is meshedly connected to one side of the rack, a second rotating shaft is rotatably connected to the large gear, and the bottom end of the second rotating shaft is fixedly connected to the sieve plate.

[0016] As a preferred technical solution of the present application, the filtering mechanism also includes a second electric telescopic rod, which is embedded in the middle of one side of the filter chamber, and a connecting block is fixedly provided on the piston rod of the second electric telescopic rod. Positioning blocks are fixedly provided on both sides of the middle of the bottom end of the sieve plate, and the connecting block is located between the two positioning blocks, and a spring pin is embedded in one side of one of the positioning blocks, and the pin shaft of the spring pin passes through the connecting block and the other positioning block in sequence.

[0017] As a preferred technical solution of the present application, the top and bottom of one side of the box body are respectively provided with a first sealing door and a second sealing door matching the storage chamber and the filter chamber, and a groove is provided at the bottom of the filter chamber, and a collection box matching the filter box is provided in the groove.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] In the scheme of this application:

[0020] 1. In order to solve the problem that the abrasives sprayed by the existing sandblasting machine in the prior art are mixed with the dust produced by the sandblasting of the workpiece and accumulated inside the sandblasting machine body, which is not conducive to the recovery and reuse of the abrasives, the present application provides a filtering mechanism, under the action of the second electric telescopic rod, the filter box can drive the screen plate to move left and right, and then the large particles of impurities can be separated from the abrasive sieve, which is convenient for the recovery and reuse of the abrasives. At the same time, with the operation of the filtering mechanism, the bearing plate of the bearing mechanism can be driven to drive the workpiece to rotate, and with the sandblasting gun, the workpiece can be sandblasted more evenly, thereby improving the sandblasting effect of the workpiece;

[0021] 2. In order to solve the problem in the prior art that manual operation is required to move the fixing parts close to each other to fix and clamp the workpiece, which is inconvenient to use and has low practicality, the present application provides a first electric telescopic rod, which can move the carrying plate of the sandblasting assembly to the bottom of the filter box, and at the same time, the hemispherical part of the limiting mechanism moves to contact with the positioning ring of the driving part, thereby moving the two clamping plates of the limiting mechanism, so that workpieces of different specifications can be fixed. After the workpiece is sandblasted, the sandblasting assembly is reset to release the limit of the workpiece. This configuration facilitates the loading and unloading of the workpiece;

[0022] 3. Through the first electric telescopic rod, when the sandblasting assembly is reset, the storage chamber is sealed under the action of the sealing ring to prevent the smoke and dust in the filter chamber from continuing to enter the storage chamber. Through the fan and the external smoke and dust bag, the smoke and dust in the storage area can be quickly sucked away, which not only avoids environmental pollution and harm to the health of personnel when loading and unloading materials, but also improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of the workpiece sandblasting machine provided for this application;

[0024] Figure 2 A schematic cross-sectional structure diagram of a workpiece sandblasting machine provided in this application;

[0025] Figure 3 A schematic cross-sectional structure diagram of a sandblasting assembly of a workpiece sandblasting machine provided in the present application;

[0026] Figure 4 A schematic diagram of a partial cross-sectional structure of a filtering mechanism of a workpiece sandblasting machine provided in the present application;

[0027] Figure 5 This is a schematic diagram of the partial cross-sectional structure of the filtering mechanism of the workpiece sandblasting machine provided in this application.

[0028] Indicated in the figure:

[0029] 1. Box body;

[0030] 2. Partition;

[0031] 3. The first electric telescopic rod;

[0032] 4. Sandblasting components;

[0033] 5. Carrying mechanism; 501. Connecting plate; 502. Connecting rod; 503. Carrying plate; 504. First limiting ring; 505. First rotating shaft; 506. Pinion; 507. Sealing ring;

[0034] 6. Limiting mechanism; 601. Dovetail slider; 602. Clamp; 603. Limiting column; 604. First spring; 605. Limiting block; 606. Hemispherical member; 607. Second spring; 608. L-shaped rod;

[0035] 7. Sandblasting department; 701. Sandblasting gun;

[0036] 8. Driving unit; 801. Second limiting ring; 802. Positioning plate; 803. Positioning ring;

[0037] 9. Filter mechanism; 901. Filter box; 902. Screen plate; 903. Rack; 904. Big gear; 905. Second rotating shaft; 906. Second electric telescopic rod; 907. Connecting block; 908. Positioning block; 909. Spring pin;

[0038] 10. Fan. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] As described in the background technology, when the existing sandblasting machine is in use, the abrasive sprayed out will be mixed with the dust produced by the sandblasting of the workpiece and accumulated inside the sandblasting machine body, which is not conducive to the recovery and reuse of the abrasive. In addition, manual operation is required, so that the fixing parts are moved close to each other to fix and clamp the workpiece, which is inconvenient to use and has low practicality.

[0041] In order to solve this technical problem, the utility model provides a workpiece sandblasting machine, which is used for workpiece sandblasting processing.

[0042] Specifically, please refer to Figure 1-5 , the workpiece sandblasting machine specifically includes:

[0043] A box body 1 is provided with a partition plate 2 fixedly disposed on the top of the box body 1, and the partition plate 2 divides the interior of the box body 1 into a storage chamber and a filter chamber, a conical groove is provided on the top of the partition plate 2, and the storage chamber and the filter chamber are interconnected through the conical groove, a first electric telescopic rod 3 is fixedly disposed in the middle of the top of the box body 1, the piston rod of the first electric telescopic rod 3 penetrates into the storage chamber and is provided with a sandblasting assembly 4, the sandblasting assembly 4 is composed of a bearing mechanism 5, a limiting mechanism 6 and a sandblasting part 7, a driving part 8 matching the limiting mechanism 6 is provided in the conical groove, a filter mechanism 9 is provided in the filter chamber, and a fan 10 is embedded in the top of one side of the box body 1.

[0044] The workpiece sandblasting machine provided by the utility model can drive the filter box to move the screen plate left and right through the filter mechanism set up under the action of the second electric telescopic rod, so that large particles of impurities can be separated from the abrasive sieve, which is convenient for the recovery and reuse of the abrasive. At the same time, with the operation of the filter mechanism, the bearing plate of the bearing mechanism can be driven to drive the workpiece to rotate, and the sandblasting gun can be used to make the workpiece sandblasted more evenly, thereby improving the sandblasting effect of the workpiece.

[0045] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] Example 1

[0049] Please refer to Figure 2 , Figure 3 and Figure 5 , a workpiece sandblasting machine, whose carrying mechanism 5 includes a connecting plate 501, the middle part of the top of the connecting plate 501 is fixedly connected to the piston rod of the first electric telescopic rod 3, connecting rods 502 are fixedly provided on both sides of the bottom of the connecting plate 501, a carrying plate 503 is provided at the bottom between the two connecting rods 502, and the carrying plate 503 is located at the bottom of the conical groove, a first limiting ring 504 is fixedly provided at the bottom between the two connecting rods 502, and the first limiting ring 504 is rotatably connected to the top of the carrying plate 503.

[0050] Please refer to Figure 2 , Figure 3 and Figure 5 A workpiece sandblasting machine, whose supporting mechanism 5 also includes a first rotating shaft 505, the top of the first rotating shaft 505 is fixedly connected to the middle of the bottom end of the supporting plate 503, a pinion 506 is fixedly provided on the first rotating shaft 505, the bottom end of the outer side of the supporting plate 503 is a convex setting, and the convexity is interlaced and connected with the conical groove, and a sealing ring 507 is embedded on the convexity.

[0051] Example 2

[0052] The workpiece sandblasting machine provided in Example 1 is further optimized, specifically, as Figure 2-3As shown, the limiting mechanism 6 includes two dovetail sliders 601, a dovetail groove is opened in the middle of the top of the carrying plate 503, and the two dovetail sliders 601 are slidably connected at both ends of the dovetail groove, a clamping plate 602 is fixed on the top of the dovetail slider 601, a limiting column 603 is fixed on one side of the clamping plate 602, and a first spring 604 is sleeved on the limiting column 603.

[0053] Further, such as Figure 2-3 As shown, the limiting mechanism 6 also includes two limiting blocks 605, both sides of the bottom end of the connecting plate 501 are provided with convex rods, and the top of the limiting block 605 is fixedly connected to the convex rods, a limiting groove is provided in the limiting block 605, a hemispherical part 606 is provided on one side of the limiting groove, and one side of the hemispherical part 606 passes through the limiting block 605, and a second spring 607 is fixedly provided between the other side of the hemispherical part 606 and the limiting groove, an L-shaped rod 608 passes through the limiting column 603, the first spring 604 is fixedly installed between one end of the L-shaped rod 608 and the clamping plate 602, and the other end of the L-shaped rod 608 passes through the limiting block 605 and the second spring 607 in sequence and is fixedly connected to the hemispherical part 606.

[0054] Example 3

[0055] The workpiece sandblasting machine provided in Example 1 or 2 is further optimized, specifically, as Figure 2-3 As shown, the sandblasting unit 7 includes a plurality of sandblasting guns 701 equidistantly distributed on both sides of the middle of the bottom end of the connecting plate 501 , the pipes of the sandblasting guns 701 are interlaced and fixed with the connecting plate 501 , and the pipes of the sandblasting guns 701 pass through the box body 1 .

[0056] Further, such as Figure 2-3 As shown, the driving part 8 includes a second limiting ring 801, which is arranged at the bottom of the conical groove, and positioning plates 802 are fixedly provided on both sides of the top of the second limiting ring 801, and one side of the positioning plate 802 is fixedly connected to the groove wall of the conical groove, and a positioning ring 803 is rotatably connected inside the second limiting ring 801, and the positioning ring 803 is matched with the hemispherical part 606.

[0057] Further, such as Figure 2 , Figure 4 and Figure 5 As shown, the filtering mechanism 9 includes a filter box 901, which is located at the top of the filter cavity, and a sieve plate 902 is embedded in the bottom end of the filter box 901. A rack 903 is fixedly provided on one side of the filter box 901, and a large gear 904 matching the small gear 506 is meshedly connected to one side of the rack 903. A second rotating shaft 905 is rotatably connected to the large gear 904, and the bottom end of the second rotating shaft 905 is fixedly connected to the sieve plate 902.

[0058] Example 4

[0059] The workpiece sandblasting machine provided in the above embodiments is further optimized, such as Figure 2 , Figure 4 and Figure 5 As shown, the filtering mechanism 9 also includes a second electric telescopic rod 906, which is embedded in the middle of one side of the filtering chamber, and a connecting block 907 is fixedly provided on the piston rod of the second electric telescopic rod 906. Positioning blocks 908 are fixedly provided on both sides of the middle of the bottom end of the sieve plate 902, and the connecting block 907 is located between the two positioning blocks 908. A spring pin 909 is embedded on one side of one of the positioning blocks 908, and the pin shaft of the spring pin 909 passes through the connecting block 907 and the other positioning block 908 in sequence.

[0060] Further, such as Figure 1-2 As shown, the top and bottom of one side of the box body 1 are respectively provided with a first sealing door and a second sealing door matching the storage chamber and the filter chamber, and a groove is provided at the bottom of the filter chamber, and a collection box matching the filter box 901 is provided in the groove.

[0061] The use process of the workpiece sandblasting machine provided by the utility model is as follows:

[0062] The first sealing door is opened, and then the workpiece is placed on the carrier plate 503, and then the first sealing door is closed, and the first electric telescopic rod 3 is controlled to work. The piston rod of the first electric telescopic rod 3 drives the connecting plate 501 to move downward, and cooperates with the connecting rod 502 to move the carrier plate 503 downward. The carrier plate 503 moves into the filter box 901, and the small gear 506 is meshed with the large gear 904 at this time. In this process, the hemispherical part 606 first contacts the inner wall of the positioning ring 803. As the hemispherical part 606 continues to move, it is forced to drive the L-shaped rod 608 to move, and the second The spring 607 is compressed, and in cooperation with the dovetail slider 601, the L-shaped rod 608 pushes the clamping plate 602 to move, so that the two clamping plates 602 move relative to each other, and in cooperation with the first spring 604, workpieces of different specifications can be clamped. The second electric telescopic rod 906 and the sandblasting gun 701 work, and the piston rod of the second electric telescopic rod 906 drives the filter box 901 to rotate left and right, so that the rack 903 moves left and right, and in cooperation with the second rotating shaft 905, the large gear 904 rotates left and right continuously. The large gear 904 rotates left by a certain angle or right by a certain angle, which can make the small gear 505 rotate left and right by one circle. Then, the first rotating shaft 506 drives the carrier plate 503 to rotate, so that the workpiece rotates continuously, and the sandblasting gun 701 is cooperated to make the workpiece sandblasting more uniform. Through the positioning ring 803, the clamping plate 602 can still clamp the workpiece when the workpiece rotates. At the same time, the filter box 901 drives the screen plate 902 to move left and right, so that large particles of impurities can be left in the filter box 901, and small particles of sandblasting fall into the collection box. When the workpiece is processed, the second electric telescopic rod 906 and the sandblasting gun 701 stop working, and the first electric telescopic rod 3 works, so that the carrier plate 503 moves up to the sealing ring 507 and The partition 2 is in contact with each other, so that the carrier plate 503 is sealed with the partition 2, thereby preventing the smoke in the collection chamber from continuing to enter the storage area. Through the fan 10, in conjunction with the external smoke bag, the smoke in the storage area can be quickly sucked out for treatment, avoiding the smoke from escaping when the personnel opens the first sealing door, and also facilitating the placement and removal of the workpiece. When it is necessary to deal with the filtered impurities and abrasives, the second sealing door is opened, the collection box is taken out first, and then the spring pin 909 is pulled to separate the pin shaft of the spring pin 909 from the connecting block 907, and then the filter box 901 can be pulled out for treatment.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A workpiece sandblasting machine, characterized in that: The invention comprises a box body (1), wherein a partition (2) is fixedly provided at the top of the box body (1), and the partition (2) divides the interior of the box body (1) into a storage chamber and a filter chamber, a conical groove is provided at the top of the partition (2), and the storage chamber and the filter chamber are interconnected through the conical groove, a first electric telescopic rod (3) is fixedly provided at the middle of the top of the box body (1), a piston rod of the first electric telescopic rod (3) penetrates into the storage chamber and is provided with a sandblasting assembly (4), the sandblasting assembly (4) is composed of a bearing mechanism (5), a limiting mechanism (6) and a sandblasting part (7), a driving part (8) matching the limiting mechanism (6) is provided in the conical groove, a filter mechanism (9) is provided in the filter chamber, and a fan (10) is embedded at the top of one side of the box body (1).

2. A workpiece sandblasting machine according to claim 1, characterized in that: The bearing mechanism (5) comprises a connecting plate (501), the middle part of the top end of the connecting plate (501) is fixedly connected to the piston rod of the first electric telescopic rod (3), connecting rods (502) are fixedly provided on both sides of the bottom end of the connecting plate (501), a bearing plate (503) is provided at the bottom between the two connecting rods (502), and the bearing plate (503) is located at the bottom end of the conical groove, and a first limiting ring (504) is fixedly provided at the bottom end between the two connecting rods (502), and the first limiting ring (504) is rotatably connected to the top end of the bearing plate (503).

3. A workpiece sandblasting machine according to claim 2, characterized in that: The bearing mechanism (5) further comprises a first rotating shaft (505), the top end of the first rotating shaft (505) being fixedly connected to the middle of the bottom end of the bearing plate (503), a pinion (506) being fixedly provided on the first rotating shaft (505), the bottom end of the outer side of the bearing plate (503) being provided with a protrusion, and the protrusion being interlaced and connected with the conical groove, and a sealing ring (507) being embedded on the protrusion.

4. A workpiece sandblasting machine according to claim 3, characterized in that: The limiting mechanism (6) comprises two dovetail sliders (601), a dovetail slot is provided in the middle of the top of the carrier plate (503), and the two dovetail sliders (601) are slidably connected to the two ends of the dovetail slot, a clamping plate (602) is fixedly provided at the top of the dovetail slider (601), a limiting column (603) is fixedly provided on one side of the clamping plate (602), and a first spring (604) is sleeved on the limiting column (603).

5. A workpiece sandblasting machine according to claim 4, characterized in that: The limiting mechanism (6) further comprises two limiting blocks (605), the two sides of the bottom end of the connecting plate (501) are provided with convex rods, and the top end of the limiting block (605) is fixedly connected to the convex rods, a limiting groove is provided in the limiting block (605), a hemispherical piece (606) is provided on one side of the limiting groove, and one side of the hemispherical piece (606) passes through the limiting block (605), a second spring (607) is fixedly provided between the other side of the hemispherical piece (606) and the limiting groove, an L-shaped rod (608) passes through the limiting column (603), the first spring (604) is fixedly installed between one end of the L-shaped rod (608) and the clamping plate (602), and the other end of the L-shaped rod (608) passes through the limiting block (605) and the second spring (607) in sequence and is fixedly connected to the hemispherical piece (606).

6. A workpiece sandblasting machine according to claim 5, characterized in that: The sandblasting section (7) comprises a plurality of sandblasting guns (701), the plurality of sandblasting guns (701) being equidistantly distributed on both sides of the middle of the bottom end of the connecting plate (501), the pipes of the sandblasting guns (701) being interlaced and fixed with the connecting plate (501), and the pipes of the sandblasting guns (701) passing through the box body (1).

7. A workpiece sandblasting machine according to claim 6, characterized in that: The driving part (8) comprises a second limiting ring (801), the second limiting ring (801) is arranged at the bottom of the conical groove, positioning plates (802) are fixedly provided on both sides of the top of the second limiting ring (801), and one side of the positioning plate (802) is fixedly connected to the groove wall of the conical groove, and a positioning ring (803) is rotatably connected inside the second limiting ring (801), and the positioning ring (803) is matched with the hemispherical part (606).

8. A workpiece sandblasting machine according to claim 7, characterized in that: The filtering mechanism (9) comprises a filtering box (901), the filtering box (901) being located at the top of the filtering cavity, a sieve plate (902) being embedded in the bottom end of the filtering box (901), a rack (903) being fixedly provided on one side of the filtering box (901), a large gear (904) matching with a small gear (506) being meshedly connected to one side of the rack (903), a second rotating shaft (905) being rotatably connected to the large gear (904), and the bottom end of the second rotating shaft (905) being fixedly connected to the sieve plate (902).

9. A workpiece sandblasting machine according to claim 8, characterized in that: The filtering mechanism (9) further comprises a second electric telescopic rod (906), the second electric telescopic rod (906) being embedded in the middle of one side of the filtering chamber, a connecting block (907) being fixedly provided on the piston rod of the second electric telescopic rod (906), positioning blocks (908) being fixedly provided on both sides of the middle of the bottom end of the sieve plate (902), and the connecting block (907) being located between the two positioning blocks (908), a spring pin (909) being embedded in one side of one of the positioning blocks (908), and the pin shaft of the spring pin (909) passing through the connecting block (907) and the other positioning block (908) in sequence.

10. A workpiece sandblasting machine according to claim 9, characterized in that: A first sealing door and a second sealing door matching the storage cavity and the filter cavity are respectively provided at the top and bottom of one side of the box body (1); a groove is provided at the bottom of the filter cavity; a collection box matching the filter box (901) is provided in the groove.

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