A part clamping device for machining hydraulic cylinder shafts

Abstract

This invention relates to the field of hydraulic cylinder shaft machining technology, and discloses a part clamping device for hydraulic cylinder shaft machining, comprising two supports. The upper front sides of both supports are fixedly connected to the same adjustment mechanism. Two clamping mechanisms are arranged on the upper middle side of the adjustment mechanism. An air filter mechanism is fixedly connected between the upper rear sections of the two supports, and a linked dust blowing mechanism is arranged inside the air filter mechanism. In this invention, the adjustment mechanism and clamping mechanism work together to alleviate the problems of insufficient spacing adjustment flexibility, difficulty in controlling clamping force, and uneven force leading to part deformation and affecting subsequent machining accuracy in traditional clamping devices. The air filter mechanism and linked dust blowing mechanism work together to alleviate the problems of large amounts of metal debris generated during hydraulic cylinder shaft machining, the lack of an effective synchronous cleaning mechanism in traditional devices, and the lack of linkage with the clamping mechanism, resulting in cumbersome operation.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder shaft machining technology, and in particular to a part clamping device for machining hydraulic cylinder shafts. Background Technology

[0002] During the machining of hydraulic cylinder shafts, the stability of part clamping directly affects machining accuracy and product quality.

[0003] Traditional clamping devices lack flexibility in spacing adjustment, often featuring fixed-size designs that struggle to accommodate hydraulic cylinder shaft parts of varying lengths and diameters. Furthermore, controlling the clamping force is difficult, leading to issues such as loose clamping causing part displacement or excessive clamping causing surface damage. Additionally, traditional clamping mechanisms are typically designed for unilateral force application, resulting in uneven force distribution that can deform parts and affect subsequent machining accuracy, failing to meet the demands of high-precision hydraulic cylinder shaft machining. Moreover, the machining process generates a large amount of metal debris, which traditional devices lack an effective synchronous cleaning mechanism. This debris accumulates in the clamping and machining areas, affecting clamping stability and potentially scratching the part surface, reducing product yield. While some devices are equipped with simple dust-blowing functions, the airflow is dispersed, resulting in poor cleaning effectiveness, and the lack of coordination with the clamping mechanism necessitates additional control, making operation cumbersome. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a part clamping device for machining cylinder shafts. It is a special device with flexible adjustment, stable clamping and synchronous chip removal functions to meet the needs of modern machining for adaptability, stability and cleanliness.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A part clamping device for machining a hydraulic cylinder shaft includes two brackets. The same adjustment mechanism is fixedly connected to the upper front side of each of the two brackets. Two clamping mechanisms are provided on the upper middle side of the adjustment mechanism. An air filter mechanism is fixedly connected between the upper rear sections of the two brackets. A linkage dust blowing mechanism is provided inside the air filter mechanism. The adjustment mechanism includes a housing fixedly connected to the upper front of the two supports, a double-headed motor fixedly connected to the middle of the left end of the housing, and a bidirectional threaded rod fixedly connected to the right output end of the double-headed motor. The outer periphery of the left and right sections of the bidirectional threaded rod is threaded with threaded sliding parts. A sliding groove is provided on the upper side of the housing for driving the clamping mechanism to adjust the spacing laterally. The clamping mechanism includes a fixed frame fixedly connected to the upper side of the threaded slide, two frame plates fixedly connected to the left and right sides of the upper side of the fixed frame, and an electric push rod fixedly connected to the middle of the upper side of the fixed frame. The upper end of the electric push rod is fixedly connected to a rack. Furthermore, limit grooves are provided on the lower inner walls of the front and rear sides of the slide groove, and a limit isolation block is rotatably connected to the outer circumference of the middle part of the bidirectional threaded rod. The limit isolation block is fixedly connected to the inner wall of the middle part of the slide groove, and the two threaded sliding parts are respectively arranged on the left and right sides of the limit isolation block. The front and rear ends of the threaded sliding parts are respectively slidably connected to the middle of the two limit grooves. Furthermore, two adapter half-tooth pieces are symmetrically and rotatably connected to one side of the upper middle portion of each of the two frame plates, and adapter strips are rotatably connected to one side of the upper front and rear ends of each of the two frame plates. The end of the adapter half-tooth piece away from the adapter strip meshes with the rack. Furthermore, an adapter block is rotatably connected to the end of the adapter strip away from the frame plate, a clamping plate is fixedly connected to the side of the adapter block away from the rack, an anti-detachment pad is fixedly connected to the inner side of the clamping plate, and the end of the adapter half-tooth piece near the adapter strip is rotatably connected to the end of the adapter block near the rack. Furthermore, the air filtration mechanism includes a fixed frame fixedly connected to the upper rear end of the two supports on the same side, a loading frame fixedly connected to the rear of the fixed frame, and an air outlet filter plate fixedly connected to the inner wall of the front side of the fixed frame. An air inlet filter plate is fixedly connected to the inner wall of the rear side of the loading frame. Furthermore, the linkage dust blowing mechanism includes a bevel gear one fixedly connected to the left output end of the dual-head motor and a fixed rod fixedly connected to the left side of the middle section of the left bracket. A rotating rod is fixedly connected to the middle of the rear side of the housing. A shaft is rotatably connected to the end of the fixed rod away from the bracket. A bevel gear two is fixedly connected to the front end of the shaft. A blowing assembly is fixedly connected to the rear inner wall of the air filtering mechanism. Furthermore, the blowing assembly includes a loading frame fixedly connected to the inner wall of the rear section of the loading frame and a pulley six rotatably connected to the front side of the middle section of the right section of the loading frame. A pulley one is fixedly connected to the rear end of the shaft, a pulley two is rotatably connected to the rear end of the rotating rod, a pulley three is fixedly connected to the rear side of the pulley two, the middle outer wall of the pulley one and the middle outer wall of the pulley two are connected by a synchronous belt one, a pulley four is rotatably connected to the front side of the middle section of the left section of the loading frame, the middle outer wall of the pulley three and the middle outer wall of the pulley four are connected by a synchronous belt two, a pulley five is fixedly connected to the front side of the pulley four, the middle outer wall of the pulley five and the middle outer wall of the pulley six are connected by a synchronous belt three, and a fan is fixedly connected to the front side of both the pulley five and the pulley six. Furthermore, air vents are provided on both the upper and lower sides of the fixed frame, and two through holes are provided on the lower side of the loading frame. The middle sections of the left and right sides of the second synchronous belt are respectively located in the middle of the two through holes. Furthermore, the two anti-detachment pads are made of wear-resistant rubber, and their surfaces are provided with anti-slip textures. The two clamps are symmetrically distributed.

[0006] The present invention has the following beneficial effects: In this invention, the adjustment mechanism and the clamping mechanism work together to alleviate the problems of insufficient flexibility in the spacing adjustment of traditional clamping devices, which are mostly designed with fixed dimensions and are difficult to adapt to hydraulic cylinder shaft parts of different lengths and diameters. In addition, the clamping force is difficult to control, and problems such as too loose clamping causing part displacement or too tight clamping causing damage to the surface of the part are easy to occur. At the same time, the clamping mechanism of traditional devices is mostly designed with unilateral force, and uneven force can easily lead to part deformation, affecting the subsequent processing accuracy and making it difficult to meet the requirements of high-precision hydraulic cylinder shaft processing.

[0007] In this invention, the air filtration mechanism and the linked dust blowing mechanism work together to alleviate the problem of a large amount of metal shavings generated during the machining of the hydraulic cylinder shaft. Traditional devices lack an effective synchronous cleaning mechanism, and the shavings accumulate in the clamping part and the machining area, which not only affects the clamping stability but may also scratch the surface of the parts and reduce the product qualification rate. Although some devices are equipped with a simple dust blowing function, the airflow is dispersed, the cleaning effect is not good, and there is no linkage with the clamping mechanism, which requires additional control and is cumbersome to operate. Attached Figure Description

[0008] Figure 1 This is a perspective view of a part clamping device for machining a hydraulic cylinder shaft according to the present invention; Figure 2 This is a schematic diagram of the linkage dust blowing mechanism of a parts clamping device for machining hydraulic cylinder shafts proposed in this invention; Figure 3 This is a schematic diagram of the bidirectional threaded rod of a part clamping device for machining a hydraulic cylinder shaft proposed in this invention; Figure 4 This is a schematic diagram of the housing of a part clamping device for machining a hydraulic cylinder shaft according to the present invention; Figure 5 This is a schematic diagram of the threaded sliding component of a part clamping device for machining a hydraulic cylinder shaft proposed in this invention; Figure 6 This is a schematic diagram of the clamping plate of a part clamping device for machining hydraulic cylinder shafts proposed in this invention; Figure 7 This is a schematic diagram of the frame plate of a part clamping device for machining hydraulic cylinder shafts proposed in this invention; Figure 8 This is a schematic diagram of the air filtering mechanism of a parts clamping device for machining hydraulic cylinder shafts proposed in this invention; Figure 9 This is a schematic diagram of the through hole structure of a part clamping device for machining a hydraulic cylinder shaft according to the present invention; Figure 10 This is a schematic diagram of the fan structure of a part clamping device for machining a hydraulic cylinder shaft proposed in this invention.

[0009] Legend: 1. Bracket; 2. Adjustment mechanism; 21. Housing; 22. Slide groove; 23. Limiting groove; 24. Dual-head motor; 25. Bidirectional threaded rod; 26. Limiting isolation block; 27. Threaded slide; 3. Clamping mechanism; 31. Fixing frame; 32. Frame plate; 33. Electric push rod; 34. Rack; 35. Adapter strip; 36. Adapter half-tooth piece; 37. Adapter block; 38. Clamping plate; 39. Anti-detachment gasket; 4. Air filtration mechanism; 41. Fixing frame; 42. Loading frame; 43. Air outlet; 44. Through hole; 45. Exit filter plate; 46. Inlet filter plate; 5. Linked dust blowing mechanism; 51. Bevel tooth one; 52. Rotating rod; 53. Fixed rod; 54. Shaft; 55. Bevel tooth two; 56. Blowing assembly; 561. Pulley one; 562. Pulley two; 563. Synchronous belt one; 564. Loading frame; 565. Pulley three; 566. Pulley four; 567. Synchronous belt two; 568. Pulley five; 569. Pulley six; 5610. Synchronous belt three; 5611. Fan. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Reference Figure 1-10 An embodiment of the present invention provides a part clamping device for machining a hydraulic cylinder shaft, comprising two supports 1, the same adjustment mechanism 2 is fixedly connected to the upper front side of the two supports 1, two clamping mechanisms 3 are provided on the upper middle side of the adjustment mechanism 2, and an air filtering mechanism 4 is fixedly connected between the upper rear sections of the two supports 1, and a linkage dust blowing mechanism 5 is provided inside the air filtering mechanism 4. The adjustment mechanism 2 includes a housing 21 fixedly connected to the upper front side of the two supports 1, a double-headed motor 24 fixedly connected to the middle of the left end of the housing 21, and a bidirectional threaded rod 25 fixedly connected to the output end of the right side of the double-headed motor 24. The outer periphery of the left and right sections of the bidirectional threaded rod 25 are threadedly connected with threaded slides 27. A slide groove 22 is provided on the upper side of the housing 21 for driving the clamping mechanism 3 to adjust the spacing laterally. The clamping mechanism 3 includes a fixed frame 31 fixedly connected to the upper side of the threaded slide 27, two bracket plates 32 respectively fixedly connected to the left and right sides of the upper side of the fixed frame 31, and an electric push rod 33 fixedly connected to the middle of the upper side of the fixed frame 31. The upper end of the electric push rod 33 is fixedly connected to a rack 34. The clamping mechanisms 3 on both sides exert force synchronously, and the two clamping plates 38 of each clamping mechanism 3 are symmetrically distributed to achieve balanced force on the parts, avoid deformation, and ensure machining accuracy.

[0012] Limiting grooves 23 are provided on the lower inner walls of both the front and rear sides of the slide groove 22. A limiting isolation block 26 is rotatably connected to the outer circumference of the middle part of the bidirectional threaded rod 25. The limiting isolation block 26 is fixedly connected to the inner wall of the middle part of the slide groove 22. Two threaded slide pieces 27 are respectively set on the left and right sides of the limiting isolation block 26. The front and rear ends of the threaded slide pieces 27 are slidably connected to the middle of the two limiting grooves 23. When the double-head motor 24 of the adjustment mechanism 2 is started, its left output end drives the bidirectional threaded rod 25 to rotate, driving the threaded slide pieces 27 on the left and right sides to move towards or away from each other along the slide groove 22. The front and rear ends of the threaded slide pieces 27 slide along the limiting grooves 23 to ensure smooth movement. The limiting isolation block 26 prevents the two threaded slide pieces 27 from colliding. By adjusting the distance between the threaded slide pieces 27, the two clamping mechanisms 3 are driven to move synchronously to adapt to cylinder shaft parts of different lengths.

[0013] Two adapter half-tooth pieces 36 are symmetrically rotatably connected to the middle of the upper part of the two frame plates 32. Adapter strips 35 are rotatably connected to the middle of the upper part of the two frame plates 32. The end of the adapter half-tooth piece 36 away from the adapter strip 35 meshes with the rack 34.

[0014] The end of the adapter bar 35 away from the frame plate 32 is rotatably connected to the adapter block 37. The side of the adapter block 37 away from the rack 34 is fixedly connected to the clamping plate 38. The inner side of the clamping plate 38 is fixedly connected to the anti-slip pad 39. The end of the adapter half-tooth piece 36 near the adapter bar 35 is rotatably connected to the end of the adapter block 37 near the rack 34. The hydraulic cylinder shaft part is placed between the clamping plates 38 of the two clamping mechanisms 3. The electric push rod 33 is activated to push the rack 34 to move upward. The rack 34 meshes with the adapter half-tooth piece 36, driving the two adapter half-tooth pieces 36 to rotate inward. At the same time, the adapter bar 35 pulls the adapter block 37 to converge towards the center, causing the clamping plate 38 to clamp the part. The wear-resistant rubber anti-slip pad 39 on the inner side of the clamping plate 38 has anti-slip texture, which can enhance friction and prevent the part from slipping and shifting.

[0015] The air filtration mechanism 4 includes a fixed frame 41 fixedly connected to the upper rear side of the two supports 1, a loading frame 42 fixedly connected to the rear of the fixed frame 41, and an air outlet filter plate 45 fixedly connected to the inner wall of the front side of the fixed frame 41. An air inlet filter plate 46 is fixedly connected to the inner rear side of the loading frame 42.

[0016] The linkage dust blowing mechanism 5 includes a bevel gear 51 fixedly connected to the output end of the left side of the dual-head motor 24 and a fixed rod 53 fixedly connected to the left side of the middle section of the left bracket 1. A rotating rod 52 is fixedly connected to the middle of the rear side of the housing 21. A shaft 54 ​​is rotatably connected to the end of the fixed rod 53 away from the bracket 1. A bevel gear 55 is fixedly connected to the front end of the shaft 54. A blowing assembly 56 is fixedly connected to the inner rear wall of the air filtering mechanism 4.

[0017] The blower assembly 56 includes a loading frame 564 fixedly connected to the inner wall of the rear section of the loading frame 42 and a pulley 569 rotatably connected to the front side of the middle of the right section of the loading frame 564. A pulley 561 is fixedly connected to the rear end of the shaft 54, a pulley 562 is rotatably connected to the rear end of the rotating rod 52, and a pulley 565 is fixedly connected to the rear side of the pulley 562. The outer wall of the middle section of the pulley 561 and the outer wall of the middle section of the pulley 562 are connected by a synchronous belt 563. The left section of the loading frame 564 is rotatably connected to the front side of the middle part of the middle part of the pulley 4 566. The middle outer wall of the pulley 3 565 and the middle outer wall of the pulley 4 566 are connected by the synchronous belt 2 567. The front side of the pulley 4 566 is fixedly connected to the pulley 5 568. The middle outer wall of the pulley 5 568 and the middle outer wall of the pulley 6 569 are connected by the synchronous belt 3 5610. The front side of both the pulley 5 568 and the pulley 6 569 is fixedly connected to the fan 5611.

[0018] Air outlets 43 are provided on both the upper and lower sides of the fixed frame 41. Two through holes 44 are provided on the lower side of the loading frame 42. The middle sections of the left and right sides of the synchronous belt 567 are respectively located in the middle of the two through holes 44. The fan 5611 generates airflow when it rotates. After impurities are filtered by the air inlet filter plate 46, the airflow is blown towards the clamping and processing area through the air outlets 43 of the fixed frame 41, blowing metal chips away from the surface of the parts and the clamping parts. The air outlet filter plate 45 further filters the airflow to prevent impurities from falling back and to ensure a clean processing environment.

[0019] The two anti-slip pads 39 are made of wear-resistant rubber with anti-slip textures on their surface, and the two clamps 38 are symmetrically distributed.

[0020] Working Principle: This device achieves flexible adaptation, stable clamping, and synchronous chip removal of the cylinder shaft parts through the coordinated operation of the adjusting mechanism 2, clamping mechanism 3, and linkage dust removal mechanism 5. The core focuses on precise adjustment, balanced clamping, and linkage dust removal. This equipment features flexible adjustment of the clamping distance. For lateral distance adaptation, activating the dual-head motor 24 of the adjusting mechanism 2 rotates the bidirectional threaded rod 25, driving the threaded slide pieces 27 on both sides to move in opposite directions along the slide groove 22. The front and rear ends of the threaded slide pieces 27 slide along the limiting groove 23, ensuring smooth movement. The limiting isolation block 26 prevents two... The threaded sliding parts 27 collide, and by adjusting the spacing of the threaded sliding parts 27, the two clamping mechanisms 3 move synchronously, adapting to hydraulic cylinder shaft parts of different lengths. In terms of balanced and stable clamping, this equipment has a clamping power transmission effect. When the hydraulic cylinder shaft part is placed between the clamping plates 38 of the two clamping mechanisms 3, the electric push rod 33 is activated, pushing the rack 34 to move upward. The rack 34 meshes with the adapter half-tooth part 36, driving the two adapter half-tooth parts 36 to rotate inward. At the same time, the adapter bar 35 pulls the adapter block 37 to converge towards the center, causing the clamping plate 38 to clamp the part. In terms of stable clamping, the wear-resistant rubber on the inner side of the clamping plate 38 is protected against... The release pad 39, with anti-slip texture, enhances friction and prevents parts from slipping and shifting. It also avoids damage to the part surface caused by rigid clamping. The clamping mechanisms 3 on both sides exert force synchronously, and the two clamping plates 38 of each clamping mechanism 3 are symmetrically distributed to achieve balanced force on the parts, preventing deformation and ensuring processing accuracy. This equipment also has a linked dust blowing and cleaning function. First, power is transmitted in a linked manner. The right output end of the dual-head motor 24 drives the bevel gear 51 to rotate, which meshes with the bevel gear 55 to drive the shaft 54 ​​to rotate. The shaft 54 ​​drives the pulleys 562 and 565 to rotate via pulley 561 and synchronous belt 563. Then... Synchronous belt 2 (567), pulley 4 (566), pulley 5 (568), and synchronous belt 3 (5610) are linked with pulley 6 (569), ultimately driving two fans 5611 to operate synchronously. This achieves directional chip removal and filtration. The rotation of fan 5611 generates airflow, which, after being filtered by the inlet filter plate 46, is blown towards the clamping and processing area through the outlet 43 of the fixed frame 41. This blows metal chips away from the surface of the parts and the clamping area. The outlet filter plate 45 further filters the airflow to prevent impurities from falling back, ensuring a clean processing environment, improving clamping stability and the surface quality of the parts. The entire dust blowing process is linked with the clamping mechanism 3, requiring no additional control and making operation convenient.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for clamping parts for machining of a cylinder shaft, comprising two supports (1), characterised in that: The same adjustment mechanism (2) is fixedly connected to the upper front part of both brackets (1). Two clamping mechanisms (3) are provided on the upper middle part of the adjustment mechanism (2). A filter mechanism (4) is fixedly connected between the upper rear parts of the two brackets (1). A linkage dust blowing mechanism (5) is provided inside the filter mechanism (4). The adjustment mechanism (2) includes a housing (21) fixedly connected to the upper front side of the two supports (1), a double-headed motor (24) fixedly connected to the middle of the left end of the housing (21), and a bidirectional threaded rod (25) fixedly connected to the output end of the double-headed motor (24). The outer periphery of the left and right sections of the bidirectional threaded rod (25) is threaded with threaded slides (27). The upper side of the housing (21) is provided with a slide groove (22) for driving the clamping mechanism (3) to adjust the spacing laterally. The clamping mechanism (3) includes a fixed frame (31) fixedly connected to the upper side of the threaded slide (27), two frame plates (32) fixedly connected to the left and right sides of the upper side of the fixed frame (31) respectively, and an electric push rod (33) fixedly connected to the middle of the upper side of the fixed frame (31). The upper end of the electric push rod (33) is fixedly connected to a rack (34).

2. The device according to claim 1, characterized in that: Limiting grooves (23) are provided on the lower inner walls of the front and rear sides of the slide groove (22). The outer circumference of the middle part of the bidirectional threaded rod (25) is rotatably connected to the limiting isolation block (26). The limiting isolation block (26) is fixedly connected to the middle inner wall of the slide groove (22). The two threaded slide pieces (27) are respectively arranged on the left and right sides of the limiting isolation block (26). The front and rear ends of the threaded slide pieces (27) are respectively slidably connected to the middle of the two limiting grooves (23).

3. The device according to claim 1, characterized in that: Two adapter half-tooth pieces (36) are symmetrically rotatably connected to one side of the upper middle part of the two frame plates (32). Adapter strips (35) are rotatably connected to one side of the upper front and rear ends of the two frame plates (32). The end of the adapter half-tooth piece (36) away from the adapter strip (35) meshes with the rack (34).

4. The device according to claim 3, characterized in that: The adapter strip (35) is rotatably connected to an adapter block (37) at one end away from the frame plate (32). The adapter block (37) is fixedly connected to a clamping plate (38) on one side away from the rack (34). An anti-detachment pad (39) is fixedly connected to the inner side of the clamping plate (38). The adapter half-tooth piece (36) is rotatably connected to the end of the adapter block (37) near the rack (34) at one end near the adapter strip (35).

5. The device according to claim 1, wherein: The air filtration mechanism (4) includes a fixed frame (41) fixedly connected to the upper rear side of the two supports (1), a loading frame (42) fixedly connected to the rear of the fixed frame (41), and an air outlet filter plate (45) fixedly connected to the inner wall of the front side of the fixed frame (41). An air inlet filter plate (46) is fixedly connected to the inner wall of the rear side of the loading frame (42).

6. The device according to claim 5, wherein: The linkage dust blowing mechanism (5) includes a bevel tooth (51) fixedly connected to the output end of the left side of the dual-head motor (24) and a fixed rod (53) fixedly connected to the left side of the middle section of the left bracket (1). A rotating rod (52) is fixedly connected to the middle of the rear side of the housing (21). A shaft (54) is rotatably connected to the end of the fixed rod (53) away from the bracket (1). A bevel tooth (55) is fixedly connected to the front end of the shaft (54). A blowing assembly (56) is fixedly connected to the inner wall of the rear side of the air filtering mechanism (4).

7. The device according to claim 6, characterized in that: The blowing assembly (56) includes a loading frame (564) fixedly connected to the inner wall of the rear section of the loading frame (42) and a pulley six (569) rotatably connected to the front side of the middle of the right section of the loading frame (564). The rear end of the shaft (54) is fixedly connected to a pulley one (561), the rear end of the rotating rod (52) is rotatably connected to a pulley two (562), and the rear side of the pulley two (562) is fixedly connected to a pulley three (565). The middle outer wall of the pulley one (561) and the middle outer wall of the pulley two (562) are connected by a synchronous belt one (563). Next, a pulley four (566) is rotatably connected to the front side of the middle section of the left segment of the loading frame (564). The outer wall of the middle section of the pulley three (565) and the outer wall of the middle section of the pulley four (566) are connected by a synchronous belt two (567). A pulley five (568) is fixedly connected to the front side of the pulley four (566). The outer wall of the middle section of the pulley five (568) and the outer wall of the middle section of the pulley six (569) are connected by a synchronous belt three (5610). A fan (5611) is fixedly connected to the front side of both the pulley five (568) and the pulley six (569).

8. The device according to claim 7, characterized in that: The fixed frame (41) has air outlets (43) on both the upper and lower sides. The loading frame (42) has two through holes (44) on the lower side. The middle sections of the left and right sides of the synchronous belt (567) are respectively located in the middle of the two through holes (44).

9. The device according to claim 4, wherein: The two anti-detachment pads (39) are made of wear-resistant rubber and have anti-slip textures on their surfaces. The two clamps (38) are symmetrically distributed.

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