Aluminum cantilever machining device

Abstract

The aluminum cantilever machining device comprises a supporting platform, a traction punching device, a saw cutting device and a jet printing device, the traction punching device comprises a traction bottom plate, a clamping device, a traction device and a punching device, the clamping device, the traction device and the punching device are installed on the traction bottom plate, and the traction bottom plate is installed on the supporting platform and can horizontally move relative to the supporting platform; the clamping device is used for pressing and fixing the cantilever; the traction device is connected with the traction bottom plate and the supporting platform. The punching device is arranged on the side of the clamping device; the saw cutting device is arranged on the left side of the traction punching device and used for cutting the cantilever. The jet printing device is arranged between the traction punching device and the saw cutting device, located on the side of the cantilever and used for conducting jet printing on the peripheral wall of the cantilever. According to the utility model, the one-stop processing of punching, cutting and jet printing of the cantilever is realized, the processing precision is accurate and controllable, the automatic production of the aluminum cantilever is realized, and the working efficiency and the product qualification rate are improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum cantilever arms for overhead contact lines, and in particular to an aluminum cantilever arm processing device. Background Technology

[0002] With the rapid development of railway construction, new requirements have been placed on the process quality standards of related components in the railway industry, and the precision requirements for the construction and maintenance of railway lines are becoming increasingly stringent. In railway lines, the overhead contact system is a crucial component ensuring normal railway operation. Connected to the electrified railway power supply lines, it directly undertakes the primary task of supplying energy to electric trains. The cantilever arm is the support device for the overhead contact system, and its pre-assembly is an important aspect of electrified railway construction. High-speed railways have extremely high precision requirements for overhead contact system installation. Since most components of high-speed railway overhead contact system projects cannot be repeatedly disassembled and reassembled, the cantilever arm support device must be precisely assembled in one go after accurate calculations. Due to constraints such as high altitude conditions on site, a pre-fabrication method based on ground batches is necessary. The quality of this one-time installation of the entire contact suspension directly affects the quality, progress, and efficiency of subsequent construction. The aluminum cantilever arm includes a cantilever tube and a single-ear connector. After the single-ear connector is installed at one end of the cantilever tube, it is necessary to drill a hole at its end, print a code on the outer periphery of the cantilever tube, and cut the cantilever tube to a certain length. Therefore, there is an urgent need for a processing device for drilling, printing, and cutting aluminum cantilever arms.

[0003] In view of this, the present invention provides an aluminum cantilever processing device that integrates the functions of punching, cutting and printing on the cantilever, realizing one-stop processing of punching, cutting and printing on the cantilever, and the processing accuracy is controllable, realizing the automated production of aluminum cantilever, improving work efficiency and product qualification rate. Utility Model Content

[0004] The present invention aims to provide an aluminum wrist arm processing device to overcome the shortcomings of the existing technology. The technical problem to be solved by the present invention is achieved through the following technical solution.

[0005] An aluminum cantilever arm processing device includes a support platform, a traction drilling device, a sawing device, and a printing device. The traction drilling device includes a traction base plate and a clamping device, a traction device, and a drilling device mounted on the traction base plate. The traction base plate is mounted on the support platform and can move horizontally relative to the support platform. The clamping device is used to clamp and fix the cantilever arm. The traction device is connected to both the traction base plate and the support platform, and is used to drive the traction base plate to move left and right along the support platform, thereby driving the cantilever arm to move left and right along the support platform. The drilling device is located to the side of the clamping device and is used to drill holes in the cantilever arm. The sawing device is located to the left of the traction drilling device and is used to further support and cut the cantilever arm. The printing device is located between the traction drilling device and the sawing device and is located to the side of the cantilever arm, and is used to print on the outer peripheral wall of the cantilever arm.

[0006] Preferably, the clamping device includes a clamping bracket I, a clamping cylinder I, a clamping block I, and a traction support. The clamping bracket I is mounted on the traction base plate. The clamping cylinder I is mounted on the upper end of the clamping bracket I with its output end facing downward. The output end of the clamping cylinder I is fixedly connected to the clamping block I. The bottom end face of the clamping block I is provided with a V-shaped groove. The traction support is mounted on the traction base plate and its position corresponds to the position of the clamping block I. The upper end face of the traction support is provided with an arc-shaped groove, which matches the wrist arm.

[0007] Preferably, the clamping device further includes a tube tail support and a fixing handle. The wrist arm includes a wrist arm tube and a single-ear connector. The single-ear connector is provided with a round hole. After the end of the wrist arm is placed on the arc-shaped groove on the traction support, the round hole of the single-ear connector matches the position of the fixing hole on the tube tail support. The fixing handle is used to pass through the round hole of the single-ear connector and insert into the fixing hole of the tube tail support to fix the wrist arm.

[0008] Preferably, the traction device includes a traction motor, a gear, and a rack. The traction motor is mounted on the traction base plate and its output end extends downward through the traction base plate. The gear is mounted at the lower end of the output end of the traction motor, and the rack is mounted on the support platform. The gear and the rack mesh with each other.

[0009] Preferably, a guide device is provided between the traction base plate and the support platform. The guide device includes sliders I installed on both sides of the lower end face of the traction base plate and guide rails installed on both sides of the upper end face of the support platform. The sliders I and the guide rails are connected to each other.

[0010] Preferably, the sawing device includes a sawing mounting plate, a sawing clamping device, a saw blade, and a sawing driving device. The sawing mounting plate is fixedly installed on the support platform and located on the left side of the traction base plate. The sawing clamping device is used to clamp and fix the arm. The sawing driving device is installed on the sawing mounting plate and connected to the saw blade. The initial position of the saw blade is located to the side of the arm and the sawing surface is perpendicular to the axis of the arm. The sawing driving device is used to drive the saw blade to move back and forth and to drive the saw blade to rotate, so as to cut the arm.

[0011] Preferably, the sawing clamping device includes a clamping bracket II, a clamping cylinder II, a clamping block II, and a sawing support base. The clamping bracket II is mounted on the sawing mounting plate. The clamping cylinder II is mounted on the upper end of the clamping bracket II with its output end facing downward. The output end of the clamping cylinder II is fixedly connected to the clamping block II. The bottom end face of the clamping block II is provided with a V-shaped groove. The sawing support base is mounted on the sawing mounting plate and its position corresponds to the position of the clamping block II. The upper end face of the sawing support base is L-shaped, and its L-shaped bend faces the saw blade.

[0012] Preferably, the sawing drive device includes a sawing motor, the output end of which is fixedly connected to the saw blade and is used to drive the saw blade to rotate; the sawing motor is mounted on the sawing mounting plate and can move back and forth relative to the sawing mounting plate.

[0013] Preferably, a sawing motor support plate is mounted on the sawing mounting plate, and a sawing telescopic cylinder is mounted on the sawing motor support plate. The output end of the sawing telescopic cylinder is fixedly connected to the sawing motor and is used to drive the sawing motor to move back and forth.

[0014] Preferably, the printing device includes a printing bracket, a printhead, and a printing controller. The printing bracket is installed between the traction punching device and the sawing device. The printhead is installed on one side of the upper end of the printing bracket with the nozzle facing the wrist arm fixed on the traction punching device. The printing controller is installed on the other side of the upper end of the printing bracket and is used to control the printing operation of the printhead and display printing information.

[0015] In this invention, when processing the wrist arm, the right end of the wrist arm is first clamped and fixed by the clamping device of the traction punching device, while the sawing device further supports the left or middle part of the wrist arm. Then, a hole is punched at the right end of the wrist arm by the punching device. The right end of the wrist arm is pulled to the right by the traction device to move to the first target position so that the printing device can print at the corresponding position of the wrist arm. After printing is completed, the wrist arm is pulled horizontally along the support platform to the second target position by the traction device. The wrist arm is further clamped and fixed by the sawing device, and then the wrist arm is cut by the sawing device.

[0016] This utility model provides an aluminum bracket processing device that integrates the functions of punching, cutting, and printing on the bracket, realizing one-stop processing of the bracket, and the processing accuracy is precise and controllable. It realizes the automated production of aluminum brackets, improving work efficiency and product qualification rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the traction drilling device in this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping device in this utility model;

[0020] Figure 4 This is a schematic diagram of the sawing device in this utility model;

[0021] Figure 5 This is a schematic diagram of the sawing and clamping device in this utility model;

[0022] Figure 6 This is a schematic diagram of the printing device in this utility model;

[0023] Figure 7 This is a schematic diagram of the wrist arm structure in this utility model;

[0024] The reference numerals in the attached figures are as follows: 11. Traction platform; 12. Sawing platform; 2. Traction drilling device; 21. Traction base plate; 221. Clamping bracket I; 222. Clamping cylinder I; 223. Clamping block mounting seat I; 224. Clamping block I; 225. Support block mounting plate; 2251. Through slot; 226. Traction support block I; 227. Traction support block II; 228. Pipe tail support seat; 229. Fixed handle; 231. Traction motor; 232. Rack; 233. Slider I; 234. Guide rail; 24. Drilling device; 25. Drilling baffle; 26. Cutting box; 3. Sawing device; 31. Sawing. Mounting plate, 311. Saw slot, 321. Clamping bracket II, 322. Clamping cylinder II, 323. Clamping block mounting seat II, 324. Clamping block II, 325. Saw support block I, 326. Saw support block II, 331. Saw motor support plate, 332. Saw telescopic cylinder, 333. Motor sliding plate, 334. Saw motor, 335. Saw blade, 336. Saw blade protective cover, 337. Slider II, 338. Slide rail, 4. Printing device, 41. Printing bracket, 42. Printhead, 43. Printing controller, 5. Wrist arm, 51. Wrist arm tube, 52. Single ear connector, 521. Round hole. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] In this utility model, the front, back, left, and right directions refer to... Figure 1 The directions shown are front, back, left, and right.

[0027] Example 1:

[0028] Reference Figure 1As shown, an aluminum wrist arm processing device is improved in that it includes a support platform, a traction punching device 2, a sawing device 3, and a printing device 4. The traction punching device 2 includes a traction base plate 21 and a clamping device, a traction device, and a punching device mounted on the traction base plate 21. The traction base plate 21 is mounted on the support platform and can move horizontally relative to the support platform. The clamping device is used to press and fix the wrist arm 5. The traction device is connected to the traction base plate 21 and the support platform respectively, and is used to drive the traction base plate 21 to move left and right along the support platform, thereby driving the wrist arm 5 to move left and right along the support platform. The punching device is located to the side of the clamping device and is used to punch holes in the wrist arm 5. The sawing device 3 is located to the left of the traction punching device 2 and is used to further support and cut the wrist arm 5. The printing device 4 is located between the traction punching device 2 and the sawing device 3 and is located to the side of the wrist arm 5, and is used to print on the outer peripheral wall of the wrist arm 5.

[0029] In this embodiment, when processing the wrist arm 5, the right end of the wrist arm 5 is first clamped and fixed by the clamping device of the traction punching device 2. At the same time, the sawing device 3 further supports the left or middle part of the wrist arm 5. Then, the punching device punches a hole at the right end of the wrist arm 5. The traction device pulls the right end of the wrist arm 5 to move to the first target position so that the printing device 4 can print at the corresponding position of the wrist arm 5. After printing is completed, the traction device continues to pull the wrist arm 5 to move horizontally along the support platform to the second target position. The sawing device 3 further clamps and fixes the wrist arm 5. Then, the sawing device 3 cuts the wrist arm 5.

[0030] This embodiment provides an aluminum cantilever processing device that integrates drilling, cutting, and printing functions for the cantilever, realizing one-stop processing of drilling, cutting, and printing for the cantilever. The processing accuracy is precise and controllable, realizing automated production of aluminum cantilever, improving work efficiency and product qualification rate.

[0031] Furthermore, the drilling device includes a drill bit for drilling holes in the wrist arm.

[0032] Furthermore, the printing device 4 includes a printing bracket 41, a printhead 42, and a printing controller 43. The printing bracket 41 is installed between the traction punching device 2 and the sawing device 3. The printhead 42 is installed on one side of the upper end of the printing bracket 41 with the nozzle facing the wrist arm 5 fixed on the traction punching device 2. The printing controller 43 is installed on the other side of the upper end of the printing bracket 41 and is used to control the printing operation of the printhead 42 and display the printing information.

[0033] Example 2:

[0034] Based on Example 1, referring to Figure 2 and Figure 3 As shown, the clamping device includes a clamping bracket I221, a clamping cylinder I222, a clamping block I224, and a traction support. The clamping bracket I221 is mounted on the traction base plate 21. The clamping cylinder I222 is mounted on the upper end of the clamping bracket I221 with its output end facing downward. The output end of the clamping cylinder I222 is fixedly connected to the clamping block I224. The bottom end face of the clamping block I224 is provided with a V-shaped groove. The traction support is mounted on the traction base plate 21 and its position corresponds to the position of the clamping block I224. The upper end face of the traction support is provided with an arc-shaped groove, which matches the wrist arm 5.

[0035] In this embodiment, when the clamping device clamps the right end of the wrist arm 5, it first places the right end of the wrist arm 5 on the arc-shaped groove of the traction support, activates the clamping cylinder I222, and causes the output end of the clamping cylinder I222 to extend downward, driving the clamping block I224 to move downward, thereby pressing the clamping block I against the wrist arm 5 downward. The arc-shaped groove on the traction support and the V-shaped groove at the bottom of the clamping block I224 limit the front and rear positions of the wrist arm 5, thereby clamping and fixing the right end of the wrist arm 5.

[0036] Furthermore, the output end of the clamping cylinder I222 is fixedly connected to the clamping block mounting base I223, and the clamping block I224 is installed at the bottom end of the clamping block mounting base I223.

[0037] Furthermore, the traction support includes a traction support block I226 and a traction support block II227, with a gap provided between the traction support block I226 and the traction support block II227.

[0038] Furthermore, a support block mounting plate 225 is installed on the traction base plate 21, and the traction support block I 226 and the traction support block II 227 are installed on the support block mounting plate 225.

[0039] Furthermore, both the traction base plate 21 and the support block mounting plate 225 are provided with through grooves 2251, and the through grooves 2251 are matched with the gaps between the traction support block I226 and the traction support block II227.

[0040] Furthermore, a chip box 26 is installed at the bottom of the traction base plate 21, and the size of the chip box 26 at least covers the through slot 2251.

[0041] Furthermore, drilling baffles 25 are respectively provided on the front and rear sides of the gap of the traction support.

[0042] In this embodiment, when the right end of the wrist arm 5 is drilled by the drilling device, the chips fall into the gap below under the obstruction of the drilling baffle 25 and fall into the chip box 26 below the traction base plate 21, which avoids the chips generated during drilling from polluting the surrounding environment and makes the worktable cleaner.

[0043] Furthermore, the support platform includes a traction platform 11 and a sawing platform 12 located to the left of the traction platform 11.

[0044] Furthermore, the traction base plate 21 is mounted on the traction platform 11 and can move left and right along with the traction platform 11.

[0045] Furthermore, the clamping device also includes a tube tail support 228 and a fixed handle 229, as shown in the reference. Figure 7 As shown, the wrist arm 5 includes a wrist arm tube 51 and a single-ear connector 52. The single-ear connector 52 is provided with a round hole. After the end of the wrist arm 5 is placed on the arc-shaped groove on the traction support, the round hole of the single-ear connector 52 matches the position of the fixing hole on the tube tail support 228. The fixing handle 229 is used to pass through the round hole of the single-ear connector 52 and insert into the fixing hole of the tube tail support 228 to fix the wrist arm 5.

[0046] In this embodiment, after the wrist arm 5 is placed on the traction support, the axis of the circular hole of the single-ear connector 52 is made perpendicular and corresponds to the fixing hole of the tube tail support 228. Then, the fixing handle 229 is inserted into the fixing hole of the tube tail support 228 through the circular hole, thereby further limiting the position of the wrist arm 5 and avoiding slight movement of the wrist arm 5 during processing, so as to make the punching, printing and cutting processing position of the wrist arm 5 more accurate.

[0047] Furthermore, the traction device includes a traction motor 231, a gear, and a rack 232. The traction motor 231 is mounted on the traction base plate 21 and its output end extends downward through the traction base plate 21. The gear is mounted at the lower end of the output end of the traction motor 231. The rack 232 is mounted on the support platform, and the gear and the rack 232 mesh with each other.

[0048] In this embodiment, when the traction device is working, the traction motor 231 rotates forward and backward, driving the gear to rotate forward and backward, thereby driving the traction base plate 21 to move left and right along the rack 232.

[0049] Furthermore, a guide device is provided between the traction base plate 21 and the support platform. The guide device includes sliders I233 installed on both sides of the lower end face of the traction base plate 21 and guide rails 234 installed on both sides of the upper end face of the support platform. The sliders I233 and the guide rails 234 are connected to each other.

[0050] In this embodiment, the guide device makes the movement of the traction base plate 21 along the support platform more stable and smooth.

[0051] Example 3:

[0052] Based on Example 1, referring to Figure 4 and Figure 5 As shown, the sawing device 3 includes a sawing mounting plate 31, a sawing clamping device, a saw blade 335, and a sawing driving device. The sawing mounting plate 31 is fixedly installed on the support platform and located on the left side of the traction base plate 21. The sawing clamping device is used to clamp and fix the arm 5. The sawing driving device is installed on the sawing mounting plate 31 and connected to the saw blade 335. The initial position of the saw blade 335 is located on the side of the arm 5 and the sawing surface is perpendicular to the axis of the arm 5. The sawing driving device is used to drive the saw blade 335 to move back and forth and to drive the saw blade 335 to rotate, so as to cut the arm 5.

[0053] In this embodiment, when the sawing device 3 is working, the traction device first pulls the wrist arm 5 to the target position, then the sawing clamping device further clamps and fixes the wrist arm 5, and then the sawing drive device drives the saw blade 335 to rotate and move back and forth to cut the wrist arm 5.

[0054] Furthermore, the sawing mounting plate 31 is mounted on the sawing platform 12.

[0055] Furthermore, the sawing and clamping device includes a clamping bracket II321, a clamping cylinder II322, a clamping block II324, and a sawing support. The clamping bracket II321 is mounted on the sawing mounting plate 31. The clamping cylinder II322 is mounted on the upper end of the clamping bracket II321 with its output end facing downward. The output end of the clamping cylinder II322 is fixedly connected to the clamping block II324. The bottom end face of the clamping block II324 is provided with a V-shaped groove. The sawing support is mounted on the sawing mounting plate 31 and its position corresponds to the position of the clamping block II324. The upper end face of the sawing support is L-shaped, and its L-shaped bend faces the saw blade 335.

[0056] Furthermore, the output end of the clamping cylinder II322 is fixedly connected to the clamping block mounting base II323, and the clamping block II324 is installed at the bottom end of the clamping block mounting base II323.

[0057] Furthermore, the sawing support base includes sawing support block I325 and sawing support block II326, and a gap is provided between sawing support block I325 and sawing support block II326.

[0058] Furthermore, the sawing mounting plate 31 is provided with a sawing plate groove 311, and the gap between the sawing plate groove 311 and the sawing support block I 325 and the sawing support block II 326 is matched with each other.

[0059] Furthermore, the sawing platform 12 has a built-in saw chip box, and the sawing plate groove 311 is located above the saw chip box.

[0060] Furthermore, the sawing drive device includes a sawing motor 334, the output end of which is fixedly connected to the saw blade 335 and is used to drive the saw blade 335 to rotate; the sawing motor 334 is mounted on the sawing mounting plate 31 and can move back and forth relative to the sawing mounting plate 31.

[0061] Furthermore, a sawing motor support plate 331 is installed on the sawing mounting plate 31, and a sawing telescopic cylinder 332 is installed on the sawing motor support plate 331. The output end of the sawing telescopic cylinder 332 is fixedly connected to the sawing motor 334 and is used to drive the sawing motor 334 to move back and forth.

[0062] In this embodiment, when the sawing and clamping device is working, the wrist arm 5 is placed on the L-shaped bend of the sawing support base. The clamping cylinder II322 is activated, causing the output end of the clamping cylinder II322 to extend downward, driving the clamping block II324 to move downward, thereby pressing the wrist arm downward and further fixing the middle or left end of the wrist arm 5. The sawing motor 334 is activated, the electric saw blade 335 rotates, and then the sawing telescopic cylinder 332 is activated, causing the output end of the sawing telescopic cylinder 332 to extend backward, driving the sawing motor 334 to move backward, thereby driving the saw blade 335 to move backward to cut the wrist arm 5.

[0063] Furthermore, a motor sliding plate 333 is movably mounted on the sawing motor support plate 331, and the sawing motor is mounted on the motor sliding plate 333.

[0064] Furthermore, slide rails 338 are provided on the left and right sides of the upper end face of the sawing motor support plate 331, and sliders II 337 are respectively installed on the left and right sides of the bottom end of the motor sliding plate 333. The sliders II 337 and the slide rails 338 are connected to each other.

[0065] Furthermore, a saw blade protective cover 336 is provided on the outside of the saw blade 335.

[0066] Furthermore, the printing bracket 41 is installed between the traction base plate 21 and the sawing mounting plate 31.

[0067] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0068] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0069] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0070] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0071] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0072] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0073] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aluminum arm processing apparatus, characterized by: The device comprises a supporting platform, a traction punching device (2), a sawing device (3) and a printing device (4). The traction punching device (2) comprises a traction base plate (21), a clamping device, a traction device and a punching device installed on the traction base plate (21). The traction base plate (21) is installed on the supporting platform and can move horizontally relative to the supporting platform. The clamping device is used for pressing and fixing the wrist arm (5). The traction device is connected with the traction base plate (21) and the supporting platform respectively, and is used for driving the traction base plate (21) to move left and right along the supporting platform, so as to drive the wrist arm (5) to move left and right along the supporting platform. The punching device is arranged at the side of the clamping device and is used for punching the wrist arm (5). The sawing device (3) is arranged at the left side of the traction punching device (2) and is used for further supporting and cutting the wrist arm (5). The printing device (4) is arranged between the traction punching device (2) and the sawing device (3) and at the side of the wrist arm (5), and is used for printing on the peripheral wall of the wrist arm (5).

2. An apparatus for processing aluminum wrist arms as defined in claim 1, wherein: The clamping device comprises a pressing support I (221), a pressing cylinder I (222), a pressing block I (224) and a traction support. The pressing support I (221) is installed on the traction base plate (21). The pressing cylinder I (222) is installed on the upper end of the pressing support I (221) and the output end faces downward. The output end of the pressing cylinder I (222) is fixedly connected with the pressing block I (224). The bottom end surface of the pressing block I (224) is provided with a V-shaped groove. The traction support is installed on the traction base plate (21) and the position corresponds to the position of the pressing block I (224). The upper end surface of the traction support is provided with a circular-arc-shaped groove which matches the wrist arm (5).

3. An apparatus for processing aluminum wrist arms as defined in claim 2 wherein: The clamping device further comprises a pipe tail support seat (228) and a fixed handle (229). The wrist arm (5) comprises a wrist arm pipe (51) and a single ear joint (52). The single ear joint (52) is provided with a round hole. After the end of the wrist arm (5) is arranged on the circular-arc-shaped groove of the traction support, the round hole of the single ear joint (52) matches the position of the fixed hole of the pipe tail support seat (228). The fixed handle (229) is used for penetrating through the round hole of the single ear joint (52) and being inserted into the fixed hole of the pipe tail support seat (228) to fix the wrist arm (5).

4. The apparatus of claim 1, wherein: The traction device comprises a traction motor (231), a gear and a rack (232). The traction motor (231) is installed on the traction base plate (21) and the output end penetrates through the traction base plate (21) downward. The gear is installed on the lower end of the output end of the traction motor (231). The rack (232) is installed on the supporting platform. The gear and the rack (232) are engaged with each other.

5. An apparatus for processing aluminum wrist arms as defined in claim 4 wherein: A guide device is arranged between the traction base plate (21) and the support platform, which includes sliding blocks I (233) mounted on both sides of the lower end surface of the traction base plate (21) and guide rails (234) mounted on the upper end surface of the support platform, and the sliding blocks I (233) and the guide rails (234) are connected to each other in a matching manner.

6. An apparatus for processing aluminum wrist arms as defined in claim 1 wherein: The sawing device (3) comprises a sawing mounting plate (31), a sawing pressing device, a saw blade (335), and a sawing driving device. The sawing mounting plate (31) is fixedly mounted on the support platform and located on the left side of the traction base plate (21). The sawing pressing device is used for pressing and fixing the wrist arm (5). The sawing driving device is mounted on the sawing mounting plate (31) and connected with the saw blade (335). The initial position of the saw blade (335) is located on the side of the wrist arm (5) and the sawing surface is perpendicular to the axis of the wrist arm (5). The sawing driving device is used for driving the saw blade (335) to move forward and backward and driving the saw blade (335) to rotate, so as to cut the wrist arm (5).

7. An apparatus for processing aluminum wrist arms as defined in claim 6 wherein: The sawing pressing device comprises a pressing support II (321), a pressing cylinder II (322), a pressing block II (324), and a sawing support seat. The pressing support II (321) is mounted on the sawing mounting plate (31). The pressing cylinder II (322) is mounted on the upper end of the pressing support II (321) and the output end faces downward. The output end of the pressing cylinder II (322) is fixedly connected with the pressing block II (324). The bottom end surface of the pressing block II (324) is provided with a V-shaped groove. The sawing support seat is mounted on the sawing mounting plate (31) and the position corresponds to that of the pressing block II (324). The upper end surface of the sawing support seat is L-shaped, and the L-shaped bending direction of the sawing support seat faces the saw blade (335).

8. An apparatus for processing aluminum wrist arms as defined in claim 6 wherein: The sawing driving device comprises a sawing motor (334). The output end of the sawing motor (334) is fixedly connected with the saw blade (335) and is used for driving the saw blade (335) to rotate. The sawing motor (334) is mounted on the sawing mounting plate (31) and can move forward and backward relative to the sawing mounting plate (31).

9. An apparatus for processing aluminum wrist arms as defined in claim 8 wherein: A sawing motor support plate (331) is mounted on the sawing mounting plate (31). A sawing telescopic cylinder (332) is mounted on the sawing motor support plate (331). The output end of the sawing telescopic cylinder (332) is fixedly connected with the sawing motor (334) and is used for driving the sawing motor (334) to move forward and backward.

10. The apparatus of claim 1, wherein: The printing device (4) comprises a printing support (41), a printing head (42) and a printing controller (43). The printing support (41) is installed between the traction perforating device (2) and the sawing device (3). The printing head (42) is installed on one side of the upper end of the printing support (41) and its nozzle is directed to the wrist arm (5) fixed on the traction perforating device (2). The printing controller (43) is installed on the other side of the lower end of the printing support (41) to control the printing work of the printing head (42) and display the printing information.

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