Part handling device for machining center

Abstract

The application belongs to the technical field of part processing, in particular to a part processing device of a machining center, comprising: a pickling inner cylinder located inside a pickling outer cylinder; a first pickling liquid injection port provided on both sides of the pickling outer cylinder; a second pickling liquid injection port provided on both sides of the pickling inner cylinder; a first clamping part located on the upper part of the pickling inner cylinder close to the top; a second clamping part located on the lower part of the pickling inner cylinder close to the bottom; and a filtering assembly located at the bottom of the pickling inner cylinder. The device can filter the surface oxides and impurities of the pipe fittings in the pickling liquid by setting the pickling outer cylinder, the controller, the pickling inner cylinder, the first pickling liquid injection port, the second pickling liquid injection port and the filtering assembly, solve the problem that the oxides and impurities after pickling of the pipe fittings cannot be filtered and collected in time, so that they are dissolved in the pickling liquid, resulting in a decrease in the concentration of the pickling liquid, effectively improve the use frequency of the pickling liquid, and reduce the processing cost.

Description

Technical Field

[0001] This invention belongs to the technical field of parts processing devices, specifically a parts processing device for machining centers. Background Technology

[0002] In today's rapidly developing industrial stage, factories are constantly increasing their demand for parts, and machining centers are also gradually increasing the volume of parts they process. In order to improve the quality and precision of parts before use, machining centers will pickle and degrease parts before or after processing to improve their corrosion resistance and extend their service life. Currently, factories use parts processing equipment to complete the pickling and degreasing of parts.

[0003] The current parts processing procedure is as follows: The parts to be processed are placed in the parts processing device, the pickling solution enters the pickling tank and completely immerses the parts to be processed, and this state is maintained until the metal oxides and impurities on the surface of the parts are completely dissolved in the pickling solution. After pickling is completed, the processed parts are taken out, and the device to be processed is put back into the pickling tank for pickling.

[0004] However, in the actual pickling process, oxides and impurities on the surface of the parts will continuously fall into the pickling solution. If they are not filtered in time, the oxides on the surface of the parts will continue to dissolve into the pickling solution, causing the concentration of the pickling solution to decrease. This leads to a decrease in the subsequent pickling effect, an increase in the defect rate of the parts, and an increase in the amount of pickling solution used, which increases the processing cost. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, the present invention proposes a parts processing device for a machining center.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a parts processing device for a machining center, comprising an acid pickling outer cylinder and a controller, and further comprising:

[0007] The pickling inner cylinder is located inside the pickling outer cylinder;

[0008] The first pickling liquid injection port is located on both sides of the pickling outer cylinder, and the first pickling liquid injection ports on both sides are staggered.

[0009] Pickling solution inlet pipes are located on both sides of the pickling outer cylinder, and the pickling solution inlet pipes on both sides are staggered. The pickling solution inlet pipes are connected to the first pickling solution spray port.

[0010] The second pickling liquid injection port is located on both sides of the pickling inner cylinder, and the first pickling liquid injection port and the second pickling liquid injection port can be connected after their positions coincide.

[0011] The first snap-fit ​​part is provided near the top of the upper part of the pickling inner cylinder;

[0012] The second snap-fit ​​part is provided near the bottom of the lower part of the pickling inner cylinder;

[0013] The pickling solution outlet is located at the bottom of the pickling outer cylinder;

[0014] Support blocks are evenly distributed at the bottom of the pickling outer cylinder, and there are four of them;

[0015] A filter assembly is located at the bottom of the pickling inner cylinder, and the filter assembly includes:

[0016] The pickling solution filter port is located at the bottom of the pickling inner cylinder;

[0017] The filter screen is fixed to the pickling solution filter port by a nut;

[0018] A sealing column, located at the lower end of the filter screen, is used to seal the pickling solution filter port, and the bottom of the sealing column is fixed to the bottom of the pickling outer cylinder.

[0019] Optionally, the pickling outer cylinder has an internal thread on its inner wall and the pickling inner cylinder has an external thread on its outer wall, and the pickling outer cylinder and the pickling inner cylinder are driven by a screw.

[0020] Optionally, the first snap-fit ​​portion includes a grid plate, which is fixed to the upper part of the pickling inner cylinder near the top. The grid plate has a first circular hole, and the number of the first circular holes is one or more.

[0021] The second snap-fit ​​part includes a chassis, which is fixed to the lower part of the pickling inner cylinder near the bottom;

[0022] The V-shaped support frame is fixed to the chassis, and the position of the V-shaped support frame corresponds to the position of the plurality of first circular holes on the grid plate.

[0023] Optionally, the grid disc is made of an elastic material.

[0024] Optionally, the pickling inner cylinder has vertical slide rails on both sides of its inner wall, and a slider is provided in the vertical slide rails; a floating plate is provided in the inner wall of the pickling inner cylinder, and the two ends of the floating plate are fixed to the slider in the vertical slide rails. The floating plate has multiple second circular holes, which correspond to the first circular holes on the grid plate. A brush is provided in the second circular holes on the floating plate.

[0025] Optionally, an acid-resistant liquid box is fixed to the bottom of the outer wall of the pickling inner cylinder. The acid-resistant liquid box is equipped with a battery, a controller, and a retractor. One end of the retractor is fixed to the bottom of the acid-resistant liquid box, and the line at the other end of the retractor is connected to the float. The retractor is controlled by the controller.

[0026] Optionally, the pickling inner cylinder and the pickling outer cylinder have acid mist outlets at one end, and an acid mist extraction pipe is connected to the acid mist outlets. The other end of the acid mist extraction pipe is connected to an extraction pump.

[0027] Optionally, the pickling inner cylinder is provided with four hanging ears around its outer wall; a hanging hook is provided at the upper end of the pickling outer cylinder and the pickling inner cylinder, the hanging hook is used to hook the hanging ears, and the end of the hanging hook away from the hanging ears is fixed to a rotating ring, the rotating ring and the hook are rotatably connected.

[0028] Optionally, four insertion rods are installed at the bottom of the outer wall of the pickling inner cylinder. The lower end of each insertion rod is equipped with a rotating bearing, and a movable load-bearing wheel is installed on the rotating bearing.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. The parts processing device for a machining center described in this invention, by setting up an outer pickling cylinder, an inner pickling cylinder, a hanging hook, a first pickling liquid spray nozzle, a second pickling liquid spray nozzle, and a filter screen, allows the pickling liquid to enter the inner pickling cylinder evenly. It can also filter out the oxides and impurities of pipe fittings in the pickling liquid after pickling, and simultaneously shake off the pickling liquid adhering to the pipe fittings after pickling. This solves the problem that the oxides and impurities of pipe fittings cannot be filtered and collected in time after pickling, thus dissolving in the pickling liquid and causing a decrease in the concentration of the pickling liquid. It effectively increases the number of times the pickling liquid can be used and reduces processing costs.

[0031] 2. The parts processing device of the machining center described in this invention can fix pipes of different sizes by setting up a grid plate and a V-shaped support frame, so as to realize the processing of pipes of multiple sizes by the same device, effectively improving the application range of the parts processing device.

[0032] 3. The parts processing device of the machining center described in this invention, by setting up a floating plate and a take-up device, can realize the up and down movement of the floating plate by controlling the take-up device, and clean the oxides and impurities that are difficult to fall off the surface of the pipe fittings, so as to make the pickling of the pipe fittings more complete, further improve the utilization rate of pickling solution, reduce pickling cost, and reduce the defect rate of pipe fitting processing. Attached Figure Description

[0033] The invention will now be further described with reference to the accompanying drawings.

[0034] Figure 1 This is a perspective view of the present invention;

[0035] Figure 2 This is a cross-sectional view of the present invention;

[0036] Figure 3yes Figure 2 Enlarged view of a portion of point A in the middle;

[0037] Figure 4 yes Figure 2 Enlarged view of a section at point B in the middle;

[0038] Figure 5 yes Figure 2 Enlarged view of a section at point C;

[0039] Figure 6 yes Figure 2 Enlarged view of a section at point D;

[0040] Figure 7 This is a top view of the present invention;

[0041] In the diagram: 1. Pickling outer cylinder; 2. Controller; 3. Pickling inner cylinder; 4. First pickling liquid spray nozzle; 5. Pickling liquid inlet pipe; 6. Second pickling liquid spray nozzle; 9. Pickling liquid outlet; 10. Support block; 12. Pickling liquid filter port; 13. Filter screen; 14. Nut; 15. Sealing column; 16. Grille plate; 17. First circular hole; 18. Chassis; 19. V-shaped support frame; 20. Vertical slide rail; 21. Slider; 22. Float; 23. Second circular hole; 24. Brush; 25. Acid-resistant liquid box; 26. Battery; 27. Cable retractor; 28. Acid mist outlet; 29. ​​Acid mist extraction pipe; 30. Hanging ear; 31. Suspension hook; 32. Rotating ring; 33. Hook; 34. Insert rod; 35. Rotating bearing; 36. Moving load-bearing wheel. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0043] like Figures 1 to 7 As shown, the present invention demonstrates a parts processing device for a machining center;

[0044] Example 1: The present invention discloses a parts processing device for a machining center, comprising an acid pickling outer cylinder 1 and a controller 2, and further comprising:

[0045] The pickling inner cylinder 3 is located inside the pickling outer cylinder 1;

[0046] The first pickling liquid injection port 4 is opened on both sides of the pickling outer cylinder 1, and the first pickling liquid injection ports 4 on both sides are staggered.

[0047] Pickling liquid inlet pipe 5 is located on both sides of the pickling outer cylinder 1. The pickling liquid inlet pipes 5 on both sides are staggered and are connected to the first pickling liquid spray port 4.

[0048] The second pickling liquid injection port 6 is located on both sides of the pickling inner cylinder 3, and the first pickling liquid injection port 4 and the second pickling liquid injection port 6 can be connected after their positions coincide.

[0049] The first snap-fit ​​part 7 is provided on the upper part of the pickling inner cylinder 3 near the top;

[0050] The second snap-fit ​​part 8 is provided at the lower part of the pickling inner cylinder 3 near the bottom;

[0051] Pickling solution outlet 9 is located at the bottom of the pickling outer cylinder 1;

[0052] Support blocks 10 are evenly distributed at the bottom of the pickling outer cylinder 1, and there are four of them;

[0053] Filter assembly 11 is located at the bottom of the pickling inner cylinder 3, and the filter assembly 11 includes:

[0054] The pickling solution filter port 12 is located at the bottom of the pickling inner cylinder 3;

[0055] The filter screen 13 is fixed in the pickling solution filter port 12 by the nut 14;

[0056] The sealing column 15 is located at the lower end of the filter screen 13 and is used to seal the pickling liquid filter port 12. The bottom of the sealing column 15 is fixed to the bottom of the pickling outer cylinder 1.

[0057] The pickling outer cylinder 1 has an internal thread on its inner wall, and the pickling inner cylinder 3 has an external thread on its outer wall. The pickling outer cylinder 1 and the pickling inner cylinder 3 are connected by a helical drive.

[0058] The pickling inner cylinder 3 is provided with four hanging ears 30 around its outer wall. The pickling outer cylinder 1 and the pickling inner cylinder 3 are provided with a hanging hook 31 at their upper ends. The hanging hook 31 is used to hook the hanging ears 30. The end of the hanging hook 31 away from the hanging ears 30 is fixed to the rotating ring 32. The rotating ring 32 is rotatably connected to the hook 33.

[0059] Specifically, when the parts processing device is put into use, the worker places the pipe fittings to be pickled into the first clamping part 7 and the second clamping part 8 in the pickling inner cylinder 3. After the pipe fittings are clamped, the hanging hook 31 hooks the hanging lug 30 of the pickling inner cylinder 3, so that the bottom of the pickling inner cylinder 3 contacts the top of the pickling outer cylinder 1. Through the screw drive, the top of the pickling inner cylinder 3 and the top of the pickling outer cylinder 1 are on the same horizontal line. At this time, the positions of the first pickling liquid injection port 4 and the second pickling liquid injection port 6 coincide, and the sealing column 15 contacts the pickling liquid filter port 12 and completely seals the pickling liquid filter port 12. The pickling liquid in the pickling liquid inlet pipe 5 is sprayed into the pickling inner cylinder 3 through the first pickling liquid injection port 4 and the second pickling liquid injection port 6 to pickle the pipe fittings. Pickling is completed. Then, the hook 31 hooks onto the lug 30 on the outer wall of the pickling inner cylinder 3, and the pickling inner cylinder 3 is lifted out through the screw drive. At this time, the sealing column 15 releases the seal on the pickling liquid filter port 12. During the pickling process, the oxides and impurities on the surface of the pipe fittings are filtered by the filter screen 13 in the pickling liquid filter port 12. After filtration, the oxides and impurities on the surface of the pipe fittings in the filter screen 13 can be collected directly by disassembling the nuts 14 at both ends of the filter screen 13. This achieves timely filtration of the pickling liquid after pickling. Compared with the existing technology, this solves the problem that the oxides and impurities after the pipe fittings are pickled cannot be filtered and collected in time, thus dissolving in the pickling liquid and causing the pickling liquid concentration to drop. This effectively increases the number of times the pickling liquid can be used.

[0060] Therefore, in this invention, through the cooperation of the suspension hook 31, the first pickling liquid spray port 4, the second pickling liquid spray port 6, and the filter screen 13, the pickling liquid is first sprayed out through the first pickling liquid spray port 4 and the second pickling liquid spray port 6, so that each pipe fitting can be evenly pickled; at the same time, the filter screen 13 can filter out the oxides and impurities on the surface of the pipe fittings in the pickling liquid, solving the problem that the oxides and impurities after the pipe fittings are pickled cannot be filtered and collected in time, thus dissolving in the pickling liquid and causing the pickling liquid concentration to drop, effectively increasing the number of times the pickling liquid can be used and reducing the processing cost.

[0061] Furthermore, since the pickling outer cylinder 1 and the pickling inner cylinder 3 can be driven by a screw, when the hook 31 hooks the lug 30 of the pickling inner cylinder 3 to lift the pickling inner cylinder 3, the rotating ring 32 drives the hook 31 to make the pickling inner cylinder 3 rotate continuously, throwing out the pickling liquid adhering to the surface of the pipe fitting and dripping it into the pickling inner cylinder 3. If there is still pickling liquid adhering to the surface of the pipe fitting at this time, the hook 33 moves downward, and the rotating ring 32 and the hook 31 drive the pickling inner cylinder 3 to continue rotating through the screw drive until there is no pickling liquid adhering to the surface of the processed pipe fitting, which can save the time of subsequent treatment of residual pickling liquid on the surface of the pipe fitting.

[0062] Furthermore, the filtered pickling solution is discharged into the pickling solution recovery tank through the pickling solution outlet 9 at the bottom of the pickling outer cylinder 1, and the pickling solution is collected and treated so that it can be used multiple times, further improving the utilization rate of the pickling solution.

[0063] Example 2: The pipe fitting processing device for a machining center shown in this invention further includes:

[0064] The first snap-fit ​​part 7 includes a grid plate 16, which is fixed to the upper part of the pickling inner cylinder 3 near the top. The grid plate 16 has a first circular hole 17, and the number of the first circular holes 17 is more than one.

[0065] The second snap-fit ​​part 8 includes a base 18, which is fixed to the lower part of the pickling inner cylinder 3 near the bottom.

[0066] V-shaped support frame 19, which is fixed to the chassis and corresponds to the position of the first circular hole 17 on the grid plate 16.

[0067] Specifically, in the existing technology, when it is necessary to pickle pipe fittings of different sizes, it is usually necessary to change the pipe fitting slot in order to place the pipe fittings and pickle them. The process of changing the pipe fitting slot is too time-consuming and cannot make the pipe fittings stable, resulting in incomplete pickling of the pipe fittings during the pickling process.

[0068] Therefore, in this invention, a grid plate 16 is fixed at the top of the pickling inner cylinder 3, and a base plate is fixed at the bottom of the pickling inner cylinder 3. A V-shaped support frame 19 is fixed on the base plate. When the pipe to be pickled enters the pickling inner cylinder 3 through the first circular hole 17 on the grid plate 16, the V-shaped support frame 19 fixed on the base plate will clamp the bottom of the pipe to be pickled, so that the pipe can be stably fixed during the pickling process. At the same time, the grid plate 16 is made of elastic material, so pipes of different sizes can pass through the first circular hole 17 on the grid plate 16 and be fixed by the V-shaped support frame 19 on the base plate, so as to realize the pickling of pipes of different sizes and effectively improve the application range of the parts processing device.

[0069] Therefore, the grille plate 16 and the V-shaped support frame 19 work together to firstly and secondly to stably fix the pipe fittings that need to be pickled. At the same time, the grille plate 16 is made of elastic material and can fix pipe fittings of different sizes for pickling, which effectively improves the application range of the parts processing device.

[0070] Furthermore, the V-shaped support frame 19 is made of materials with good ductility, such as aluminum alloy and nickel alloy, which can better fix pipe fittings of different sizes.

[0071] Example 3: The pipe fitting processing device for a machining center shown in this invention further includes:

[0072] The pickling inner cylinder 3 has vertical slide rails 20 on both sides of its inner wall, and a slider 21 is provided in the vertical slide rail 20. A float 22 is provided in the inner wall of the pickling inner cylinder 3. The two ends of the float 22 are fixed to the slider 21 in the vertical slide rail 20. The float 22 has a second circular hole 23, and there is more than one second circular hole 23. The second circular hole 23 corresponds to the first circular hole 17 on the grid plate 16. A brush 24 is provided in the second circular hole 23 on the float 22.

[0073] An acid-resistant liquid box 25 is fixed to the bottom of the outer wall of the pickling inner cylinder 3. The acid-resistant liquid box 25 is equipped with a battery 26, a controller 2 and a retractor 27. One end of the retractor 27 is fixed to the bottom of the acid-resistant liquid box 25, and the line at the other end of the retractor 27 is connected to the float 22. The retractor 27 is controlled by the controller 2.

[0074] Specifically, during the pickling process, oxides and impurities on the surface of the pipe fittings will continuously fall off into the pickling solution. However, some oxides and impurities will remain adsorbed on the surface of the pipe fittings. Therefore, in this invention, a float 22 is installed in the pickling inner cylinder 3. Initially, the float 22 is located below the bottom of the pickling inner cylinder 3. The float 22 is connected to the take-up device 27 inside the acid-resistant liquid box 25 fixed at the bottom of the outer wall of the pickling inner cylinder 3. After the pipe fittings to be pickled pass through the grid plate 16, they simultaneously pass through the second circular hole 23 on the float 22. After the pipe fittings to be pickled are completely fixed, the pickling solution enters the pickling inner cylinder 3. At this time, the float 22 is buoyed by the pickling solution and moves upward through the slider 21. When the sliders 21 at both ends of the float 22 move to the top of the vertical slide rail 20, the control... The controller 2 sends a working command to the take-up device 27, which begins to take in the wire. The float 22 moves towards the bottom of the pickling inner cylinder 3. When the float 22 reaches the bottom, the controller 2 sends a stop working command to the take-up device 27 again. At this time, the float 22 will be buoyed and move upward again. When the sliders 21 on both sides of the float 22 move to the top of the slide rail 20 again, the controller 2 will control the take-up device 27 again to make the float 22 move downward, so that the float 22 moves up and down inside the pickling inner cylinder 3. Brushes 24 are fixed in the second circular holes 23 on the float 22. As the float 22 moves up and down continuously, the brushes 24 inside the float 22 will peel off the oxides and impurities attached to the surface of the pipe, so that the oxides on the surface of the pipe can be completely removed, reducing the defect rate of pipe processing.

[0075] It should be noted that the acid-resistant liquid box 25 at the bottom of the pickling inner cylinder 3 is made of acid-resistant materials, such as polyethylene, fiberglass, carbon steel, etc. At the same time, the line in the take-up coil 27 is in a slack state when initially connected to the float 22, which facilitates the movement of the float 22 under the buoyancy of the pickling liquid. In addition, the float 22 can only move up and down in the vertical slide rail 20 via the slider 21 in the pickling inner cylinder 3, and cannot move left and right.

[0076] Example 4: The pipe fitting processing device for a machining center shown in this invention further includes:

[0077] The pickling inner cylinder 3 and the pickling outer cylinder 1 have acid mist outlets 28 at one end, and acid mist extraction pipes 29 are connected to the acid mist outlets 28. The other end of the acid mist extraction pipes 29 is connected to the extraction pump.

[0078] Specifically, since a large amount of acid mist is generated during the pickling process, if it is not collected and treated in time, it can easily cause industrial processing accidents. In this invention, an acid mist outlet 28 is opened at one end of the pickling inner cylinder 3 and the pickling outer cylinder 1. The air pump extracts the acid mist through the acid mist outlet 28 connected to the acid mist outlet pipe and collects it into the acid mist waste gas treatment tank for treatment. This avoids the spread of harmful gases such as acid mist and solves the problem of pollution generation during the pickling process, while also improving the safety of workers.

[0079] Example 5: The pipe fitting processing device for a machining center shown in this invention further includes:

[0080] The bottom of the outer wall of the pickling inner cylinder 3 is equipped with four insert rods 34. The lower end of each insert rod 34 is equipped with a rotating bearing 35, and a movable load-bearing wheel 36 is installed on the rotating bearing 35.

[0081] Specifically, during the pickling process, the weight of the pickling inner cylinder 3 increases after the pickling solution enters it. If no supporting structure is added to the bottom of the pickling inner cylinder 3, the bottom of the pickling inner cylinder 3 is likely to come into contact with the bottom of the pickling outer cylinder 1, which will cause the sealing column 15 to damage the filter screen 13 and cause the filter screen 13 to lose its filtering function. Therefore, a movable load-bearing wheel 36 is installed at the bottom of the outer wall of the pickling inner cylinder 3. The movable load-bearing wheel 36 can bear the weight of the pickling inner cylinder 3 during the pickling process, and can also be pushed and moved directly after the pickling inner cylinder 3 is removed after pickling, saving the time of manually handling the pickled pipe fittings and further improving the efficiency of pipe fitting pickling.

Claims

1. A part processing apparatus of a machining center comprising a pickling outer cylinder (1) and a controller (2), characterized by, Also include: pickling inner cylinder (3) is located inside pickling outer cylinder (1); First pickling liquid injection port (4) is opened in both sides of pickling outer cylinder (1), and the first pickling liquid injection port (4) of both sides is staggered arrangement; Pickling liquid inlet pipe (5) is located in both sides of pickling outer cylinder (1), and the pickling liquid inlet pipe (5) of both sides is staggered arrangement, and the pickling liquid inlet pipe (5) is communicated with the first pickling liquid injection port (4); Second pickling liquid injection port (6) is opened in both sides of pickling inner cylinder (3), and the first pickling liquid injection port (4) and the second pickling liquid injection port (6) are overlapped in position, and the communication can be realized after; First clamping part (7), the upper part of pickling inner cylinder (3) is provided with first clamping part (7) near the top; Second clamping part (8), the lower part of pickling inner cylinder (3) is provided with second clamping part (8) near the bottom; Pickling liquid outlet (9) is opened in the bottom of pickling outer cylinder (1); Supporting block (10) is uniformly distributed in the bottom of pickling outer cylinder (1), and the number is four; Filter assembly (11) is located in the bottom of pickling inner cylinder (3), and the filter assembly (11) comprises; Pickling liquid filter port (12) is opened in the bottom of pickling inner cylinder (3); Filter screen (13) is fixed in pickling liquid filter port (12) through nut (14); Sealing column (15) is located at the lower end of filter screen (13), which is used for sealing pickling liquid filter port (12), and the bottom of sealing column (15) is fixed to the bottom of pickling outer cylinder (1); The inner wall of pickling inner cylinder (3) is provided with vertical slide rail (20), and the vertical slide rail (20) is provided with sliding block (21);The inner wall of pickling inner cylinder (3) is provided with floating disc (22), and the both ends of floating disc (22) are fixed with sliding block (21) in vertical slide rail (20), and second circular hole (23) is opened in floating disc (22), and the number of second circular hole (23) is more than one, and second circular hole (23) on floating disc (22) corresponds with first circular hole (17) on grid disc (16), and brush (24) is arranged in second circular hole (23) on floating disc (22); The outer wall of pickling inner cylinder (3) is fixed with acid liquid resistant box (25) at the bottom, and the acid liquid resistant box (25) is provided with battery (26), controller (2) and take-up device (27), one end of take-up device (27) is fixed to the bottom of acid liquid resistant box (25), and the other end of take-up device (27) is connected with floating disc (22).

2. A part handling device for a machining center according to claim 1, characterized in that: The inner wall of pickling outer cylinder (1) is provided with internal thread, the outer wall of pickling inner cylinder (3) is provided with external thread, and pickling outer cylinder (1) and pickling inner cylinder (3) are spiral transmission.

3. A part handling device for a machining center according to claim 2, characterized in that: The first clamping part (7) comprises a grid disc (16), and the grid disc (16) is fixed on the upper part of the pickling inner cylinder (3) near the top, and the first circular hole (17) is opened on the grid disc (16), and the number of the first circular hole (17) is more than one; The second clamping part (8) comprises a bottom disc (18), and the bottom disc (18) is fixed to the position near the bottom of the pickling inner cylinder (3). The V-shaped support frame (19) is fixed on the bottom plate (18) and corresponds to the position of the first circular hole (17) on the grid plate (16).

4. A part handling device for a machining center according to claim 3, characterized in that: The grid plate (16) is made of elastic material.

5. A part handling device for a machining center according to claim 4, characterized in that: The take-up device (27) is controlled by the controller (2).

6. A part handling device for a machining center according to claim 5, characterized in that: The acid-washing inner cylinder (3) is provided with an acid mist outlet (28) at one end of the acid-washing outer cylinder (1), and the acid mist outlet (28) is connected with an acid mist exhaust pipe (29), and the other end of the acid mist exhaust pipe (29) is connected with an exhaust pump.

7. A part handling device for a machining center according to claim 6, characterized in that: The acid-washing inner cylinder (3) is provided with four hanging ears (30) around the outer wall; the acid-washing outer cylinder (1) and the acid-washing inner cylinder (3) are provided with a hanging hook (31) at the upper end, the hanging hook (31) is used for hooking the hanging ear (30), the end of the hanging hook (31) away from the hanging ear (30) is fixed with a rotating ring (32), and the rotating ring (32) is rotatably connected with a hook (33).

8. A part handling device for a machining center according to claim 7, characterized in that: The acid-washing inner cylinder (3) is provided with four insertion rods (34) at the bottom of the outer wall, the lower end of the insertion rod (34) is provided with a rotating bearing (35), and the rotating bearing (35) is provided with a moving bearing wheel (36).

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