Fork frame parts automated processing equipment

Abstract

The application discloses a kind of full-automatic processing equipment of fork frame class parts, including vertical machine tool base, workpiece positioning fixture, processing drive assembly, workpiece output assembly etc..Workpiece positioning fixture is set on vertical machine tool base, for realizing the positioning and clamping of workpiece.Workpiece positioning fixture includes positioning frame, distal positioning piece, push block, turnover sleeve ring, sleeve ring etc., through the cooperation of pre-positioning cylinder and each transmission assembly, the pre-positioning and accurate positioning of workpiece are realized, and finally the clamping of the connecting support part of workpiece is carried out.Pre-positioning cylinder carries out fast pre-positioning, and simplifies main positioning process;Double rack transmission assembly realizes two end surface positioning, with buffering effect;Avoiding mouth makes push block avoid guide slide.Distal positioning piece is higher than the surface of workpiece, covers most of workpiece, and avoids workpiece deformation;Second transmission gear simplifies structure and improves integration.Processing drive assembly is set on vertical machine tool base, for driving processing tool to process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fork frame type part processing equipment, in particular to a fork frame type part automatic processing equipment. BACKGROUND

[0002] The fork frame structure parts are often used in electric tools to connect the main components such as motors, tool mechanisms and handles. Figure 1 is a commonly used fork frame part 01, which includes two working parts g1 on both sides and a connecting support part g2 in the middle. The fork frame part is usually a cast blank. In order to reduce the weight, the solid part has multiple hollow designs for weight reduction. In order to reduce the weight, the fork frame part 01 from the blank to meet the use requirements, generally at least two working parts of the center hole are coaxially expanded and the connecting hole on the connecting support part g2 is expanded.

[0003] For the coaxial expansion machining of the working part of the fork frame part 01, the two working parts g1 need to be fixed and positioned as a whole before machining, and cannot be clamped from the outside or outwardly supported from the inside. Such clamping method is difficult to obtain good results. For example, using a large clamping force will cause elastic deformation of the working part, and the coaxiality cannot be guaranteed. Using a small clamping force, the clamping force is insufficient, and the vibration of the workpiece during machining will cause the cutting of the workpiece to lose its due smoothness. Therefore, in the prior art, in order to carry out automatic continuous machining, a relatively complex clamp needs to be made and a multi-angle independent clamping power needs to be provided. This is not conducive to production cost and maintenance.

[0004] Chinese invention patent application publication No. CN114571188A discloses a fork frame type structure part processing method. The existing method uses a small surface as a support for grinding during machining, causing unstable size guarantee during the machining process, high part rework rate and other problems. The proposed solution solves the deformation problem of the inwardly recessed fork opening after the part is cut. In actual processing, the fork frame structure part also has the problems of difficult automatic rapid processing and low production efficiency due to the lack of a special clamp.

[0005] In summary, the structural features of the fork frame type part make it difficult to achieve automatic continuous machining during processing. This requires special design of the clamping mechanism and positioning parts. SUMMARY

[0006] The present application provides a fork frame type part automatic processing equipment, which is a fork frame type part full-automatic processing equipment integrating positioning, machining and conveying. The equipment realizes automatic processing of the whole workpiece machining process, and achieves high automation degree and machining precision.

[0007] The application aims at providing a fork frame type part automatic machining device.

[0008] The machining machine, the vertical machining machine and the horizontal machining machine are fixed on the upper end of the vertical machine base and the horizontal machine base;

[0009] The base, the vertical machine base and the horizontal machine base are fixed on the workbench, and the vertical machine base has a cavity inside;

[0010] The workpiece positioning jig can automatically clamp and release the workpiece, and is fixed on the lateral side of the vertical machine base, wherein the power and transmission part is located in the cavity of the vertical machine base, and the positioning and clamping part is exposed on the side facing the horizontal machine base; the position corresponding to the positioning and clamping part on the mounting side plate is provided with a threaded through hole;

[0011] The workpiece input assembly and the workpiece output assembly;

[0012] The driving cylinder is fixed in the main part, and the telescopic part has a rack structure;

[0013] The workpiece positioning jig comprises a mounting side plate, a jig base body detachably and fixedly connected with the mounting side plate, a clamp mounting part with a cylindrical shape and an inner cavity structure on one side of the jig base body, a workpiece parking part provided on the jig base body and located between the clamp mounting part and the mounting side plate, a self-centering jacking mechanism movably mounted in the clamp mounting part, a transmission sleeve threadedly connected with the threaded through hole, a working sleeve sleeved in the transmission sleeve, a third transmission gear coaxially and fixedly connected with the transmission sleeve below the mounting side plate, and a transmission assembly penetrating the jig base body and located on one side of the self-centering jacking mechanism;

[0014] The self-centering jacking mechanism comprises a left camshaft, a right camshaft and a driving gear ring clamped on the outer periphery of one of the camshafts, the two camshafts are coaxially and rotatably connected, and the cam surfaces abut against each other at one end and have conical surfaces at the other end; after the driving gear ring is selected and clamped with one of the camshafts, the radial direction of the other camshaft is limited in the clamp mounting part;

[0015] The transmission assembly comprises a first transmission gear, a second transmission gear and a connecting shaft which are fixedly connected with each other;

[0016] The second transmission gear is engaged with the rack structure of the driving cylinder.

[0017] As a preferred, the workpiece input assembly comprises a conveying belt assembly and a guide chute, and the free end of the guide chute is adjustable in angle. Advantage: the workpiece input assembly of the application adopts the conveying belt and the guide chute adjustable in angle, realizes flexible adjustment of the conveying path, and improves the versatility of the equipment.

[0018] As a preferred, the workpiece output assembly comprises a conveying belt assembly and a unloading assembly. Advantage: the workpiece output assembly in the prior art usually only uses a conveying belt, and an additional operation tool is needed to take out the workpiece during unloading, and the automation degree is low. The workpiece output assembly of the application realizes automatic unloading of the workpiece by setting the unloading assembly, avoids additional operation tools, and improves the automation degree.

[0019] As a preferred, the workpiece positioning jig further comprises a radial positioning structure, which comprises: a through hole penetrating the connecting shaft; a turnover sleeve ring rotatably sleeved on the outer periphery of the right camshaft, the outer ring of the turnover sleeve ring having partial transmission teeth; a sleeve ring fixedly sleeved on the outer periphery of the turnover sleeve ring and having a shifting block; an inscribed shaft rotatable in the through hole, both ends of the inscribed shaft partially protruding out of the through hole; a fourth transmission gear fixed to the lower end of the inscribed shaft; a positioning frame having meshing teeth matched with the transmission teeth on the part fixed to the upper end of the inscribed shaft and sleeved on the outer periphery of the connecting shaft; a distal positioning member fixed to the positioning frame; and a base fixed to a pre-positioning cylinder in a predetermined position in the internal cavity of the vertical machine tool base, the telescopic rod of the pre-positioning cylinder being capable of entering the working part of the workpiece to obtain pre-positioning of the workpiece. Advantage: the workpiece positioning jig in the prior art usually uses a simple positioning structure, and the positioning precision is poor, which is difficult to meet the positioning requirements of workpieces at different angles. The radial positioning structure of the application realizes accurate positioning of the workpiece at different angles, improves the positioning precision and universality, and the pre-positioning cylinder realizes pre-positioning of the workpiece, simplifies the main positioning process, and improves the positioning efficiency.

[0020] As a preferred, the radial positioning structure further comprises a double-rack transmission assembly integrally fixed to the mounting side plate, which comprises a sliding rail, a fixed tooth belt fixed to the movable part of the sliding rail, an elastic sliding tooth belt slidably mounted on the movable part of the sliding rail, a compression spring abuttingly arranged on the outer side end face of the elastic sliding tooth belt, and a spring mounting seat for placing the compression spring; the fixed tooth belt is capable of meshing and separating with the second transmission gear, and the elastic sliding tooth belt remains in meshing state with the fourth transmission gear. Advantage: the double-rack transmission assembly realizes driving of the positioning frame and the distal positioning member, so that the workpiece obtains comprehensive positioning in two directions, greatly improving the positioning precision and stability. In the prior art, the workpiece usually only obtains positioning in one direction, and the positioning precision and stability are poor, or multiple angles and powers are needed to obtain stable positioning. The setting of the elastic sliding tooth belt and the compression spring enables the double-rack transmission assembly to have a certain buffering effect, which can adapt to the slight deformation of the workpiece during processing and the self-adjustment of the slight position change during simultaneous positioning in two directions, improving the positioning stability.

[0021] Preferably, an avoidance opening is provided at the position of the guide slide corresponding to the shift block. Beneficial effect: The setting of the avoidance opening enables the shift block to avoid the guide slide during the workpiece positioning process. The setting of the avoidance opening enhances the advantages of the present invention in workpiece transportation, makes the structure more compatible and coordinated, and reflects the systematicness and integrity of the present invention in the overall design of the equipment. The present invention not only achieves a high degree of automation and precision in the positioning and processing of the workpiece, but also demonstrates strong compatibility during the transportation of the workpiece, realizing the automation of the entire workpiece processing process, which is difficult to achieve with the existing technology.

[0022] Preferably, the distal positioning member is positioned higher than the height of the workpiece when in the clamped position. When in the working position, the distal positioning member covers at least a majority of the workpiece, while leaving space at the center for the machining tool to enter and exit. Advantageous Effects: The distal positioning member is elevated a certain height above the workpiece surface, covering a majority of the workpiece surface, effectively preventing deformation and displacement of the workpiece during machining, ensuring machining accuracy. Furthermore, the central machining space provides no interference with the machining tool's movement.

[0023] Preferably, the second transmission gear has a tooth width sufficient to mesh with the third transmission gear in its upper portion and with the fixed toothed belt in its lower portion. Beneficial Effect: The second transmission gear can mesh with both the third transmission gear to drive the left camshaft and the fixed toothed belt to drive the positioning frame and distal positioning member, thus enabling the drive of two distinct components, simplifying the transmission structure and improving system integration. Existing structures typically require two independent transmission assemblies to drive different components, resulting in a complex structure and low integration.

[0024] Preferably, the equipment further includes a baffle disposed within the vertical machine base to prevent the workpiece from slipping off the workpiece output assembly. Advantageous Effects: The baffle effectively prevents the workpiece from slipping off the workpiece output assembly during unloading and output, thus avoiding damage to the workpiece and ensuring smooth output of the workpiece.

[0025] Preferably, after the workpiece enters the workpiece positioning fixture, the telescopic rod of the pre-positioning cylinder enters the working portion on one side of the workpiece for pre-positioning. The telescopic portion of the drive cylinder pushes the movable portion of the slide rail, causing the elastic sliding toothed belt to move and drive the fourth transmission gear to rotate. The fourth transmission gear drives the positioning frame and the distal positioning member to rotate. The positioning frame rotates, driving the flip collar, which in turn drives the collar. The shift block moves in the opposite direction of the positioning frame's swing. The rotation of the shift block causes the workpiece to flip and ultimately, the positioning frame and the various transmission components work together to clamp the workpiece's connecting support portion. Beneficial Effect: The coordinated operation of the pre-positioning cylinder and the various transmission components enables pre-positioning and precise positioning of the workpiece, simplifying the positioning process and improving positioning efficiency and accuracy. After the pre-positioning cylinder performs pre-positioning, the various transmission components continue to drive the positioning frame and the distal positioning member to rotate and precisely position the workpiece, ultimately achieving clamping of the workpiece's connecting support portion. This combination of pre-positioning and precise positioning is difficult to achieve with existing technologies and is beneficial for improving automation and positioning accuracy.

[0026] In summary, the present invention has the following advantages compared with the prior art:

[0027] 1. It realizes the fully automatic and high-precision processing of fork frame parts, with the advantages of high degree of automation, high precision, simple structure and strong versatility, overcoming the shortcomings of low degree of automation, poor precision, complex structure and poor applicability of fork frame parts processing equipment in the existing technology.

[0028] 2. The workpiece positioning fixture enables full axial and radial positioning and clamping of the workpiece. The power and transmission components for positioning are concealed within the cavity, making the structure more compact. The pre-positioning cylinder enables rapid pre-positioning of the workpiece, simplifying the main positioning process and improving positioning efficiency.

[0029] 3. The dual-rack drive assembly achieves end-face positioning, significantly improving positioning accuracy and stability. The use of an elastic sliding toothed belt and compression springs provides a buffering effect, adapting to minor workpiece deformations during machining and automatically adjusting to minor position changes during simultaneous positioning in two directions, thereby improving positioning stability.

[0030] 4. The setting of the avoidance opening enables the shift block to avoid the guide slide, ensuring that the workpiece passes through the guide slide smoothly and enhancing the compatibility of the conveying system.

[0031] 5. The remote positioning piece is higher than the workpiece surface, covering most of the workpiece surface, effectively preventing workpiece deformation and ensuring machining accuracy. At the same time, it leaves machining space and does not interfere with the machining tool.

[0032] 6. The second transmission gear can engage with the third transmission gear to drive the left camshaft, and can also engage with the fixed toothed belt to drive the positioning frame, simplifying the structure and improving integration.

[0033] 7. The baffle prevents the workpiece from slipping from the workpiece output assembly during the output process, ensuring smooth output of the workpiece and achieving continuous automatic output.

[0034] 8. The pre-positioning cylinder and various transmission components realize the pre-positioning and precise positioning of the workpiece, simplify the positioning process, improve the positioning efficiency and accuracy, and realize the clamping of the workpiece connection support part.

[0035] In summary, the present invention realizes the automation of the entire process of automated processing of fork frame parts, achieves a high degree of automation and precision, has a reasonable mechanical structure design, and has important inventive creativity compared with the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural diagram of the fork frame parts;

[0037] Figure 2 It is a structural schematic diagram of the present invention;

[0038] Figure 3 The structural diagram of the conveyor belt, machine tool, etc. in the workpiece input assembly is hidden for the present invention;

[0039] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0040] Figure 5 This is a structural diagram of the workpiece positioning fixture;

[0041] Figure 6 A structural diagram of the workpiece positioning fixture from another angle;

[0042] Figure 7 Exploded view of some parts of the workpiece positioning fixture;

[0043] Figure 8 This is a schematic diagram of the structure of the workpiece positioning fixture after clamping the workpiece;

[0044] Figure 9 This is a structural diagram of the transmission assembly cooperating with the double-rack transmission assembly, with the second transmission gear moved out.

[0045] Markings in the figure:

[0046] Fork part 01, work part g1, connecting support part g2, machine tool base 2, machine tool base 3, machine tool 4, machine tool 5, workpiece input assembly 6, guide chute 61, workpiece output assembly 7, drive cylinder 001, mounting side plate 10, workpiece positioning jig 20, jig base 21, workpiece parking part 211, clamp mounting part 22, self-centering jacking mechanism 23, left cam shaft 231, right cam shaft 232, drive gear ring 233, threaded hole 24, transmission sleeve 25, work sleeve 26, third transmission gear 27, transmission assembly 29, first transmission gear 291, second transmission gear 292, connecting shaft 293, radial positioning structure 30, turnover sleeve ring 301, transmission teeth 302, sleeve ring 303, avoidance port 304, push block 305, pre-positioning cylinder 306, meshing teeth 331, inner shaft 31, fourth transmission gear 32, positioning frame 33, distal positioning part 34, double rack transmission assembly 35, slide rail 351, fixed tooth belt 352, elastic sliding tooth belt 353, compression spring 354, spring mounting seat 355. DETAILED DESCRIPTION

[0047] The application will be further described below in conjunction with the embodiments shown in the accompanying drawings:

[0048] Embodiment 1

[0049] As shown in the drawings, the fork part automatic processing equipment of the application comprises: Figures 1-3

[0050] Workbench 1, vertical machine tool base 2 and horizontal machine tool base 3 are fixed on the workbench 1. The upper end of the vertical machine tool base 2 and the horizontal machine tool base 3 is respectively fixed with a vertical machining machine tool 4 and a horizontal machining machine tool 5. The vertical machine tool base 2 has a cavity inside.

[0051] Workpiece positioning jig 20, the workpiece positioning jig 20 can automatically clamp and release the workpiece. The workpiece positioning jig 20 is fixed on the side of the vertical machine tool base 2 as a whole, wherein the power and transmission part is hidden in the cavity of the vertical machine tool base 2, and the positioning and clamping part is exposed on the side facing the horizontal machine tool base 3.

[0052] Workpiece input assembly 6, the workpiece input assembly 6 comprises a conveyor belt assembly and a guide chute 61 hinged at the end of the conveying direction of the conveyor belt assembly. The free end of the guide chute 61 can swing up and down, and the swing angle can be fixed to adjust the workpiece to fall into the positioning jig 20 at a suitable angle.

[0053] Workpiece output assembly 7, the workpiece output assembly 7 comprises a conveyor belt assembly and a discharging assembly. The overall height of the conveyor belt assembly is lower than that of the workpiece positioning jig 20. When the workpiece is finished processing, the workpiece is released from the support and positioning of the positioning jig 20, and falls along the positioning jig 20 to the workpiece output assembly 7 by the action of the discharging assembly and its own gravity.​

[0054] The workpiece positioning fixture 20 includes:

[0055] Mounting side plate 10 is used to securely connect to the vertical machine tool base 2 and separate the positioning fixture's power and transmission components from the positioning and clamping components. This prevents machining waste and saponified coolant from entering the power and transmission components. Threaded through-holes 24 are provided on mounting side plate 10 at locations corresponding to the positioning and clamping components.

[0056] The jig base 21 is removably fixed to the mounting side plate 10. One side of the jig base 21 has a cylindrical, hollow fixture mounting portion 22. A workpiece resting portion 211 is provided on the jig base 21, located between the fixture mounting portion 22 and the mounting side plate 10. The workpiece resting portion 211 is concavely curved, its curvature matching the curvature of the workpiece's working surface. When a workpiece is placed into the workpiece resting portion 211, its axis substantially aligns with the axis of the fixture mounting portion 22.

[0057] The self-centering support mechanism 23 is movably mounted within the fixture mounting portion 22. The axis of the self-centering support mechanism 23 has a hole extending vertically through it, the diameter of which is larger than the diameter of the hole to be machined in the workpiece. The self-centering support mechanism 23 comprises a left camshaft 231 and a right camshaft 232, which are coaxially rotatably connected, with cam surfaces abutting each other at one end and a conical surface at the other end; and a drive gear ring 233 secured to the outer circumference of one of the camshafts. Once the drive gear ring 233 is secured to one camshaft, the radial direction of the other camshaft is confined within the fixture mounting portion 22, allowing axial movement. The height between the left and right camshafts 231 and 232 is smaller than the workpiece's clamping portion. A clearance greater than the clamping portion of the workpiece is left between the right camshaft 232 and the working sleeve 26.

[0058] The transmission sleeve 25 is threadedly connected to the threaded through hole 24.

[0059] The working sleeve 26 is sleeved in the transmission sleeve 25.

[0060] The third transmission gear 27 is located below the mounting side plate 10 and is coaxially fixedly connected to the transmission sleeve 25.

[0061] The transmission assembly 29 extends through the fixture base 21 and is located on one side of the self-centering support mechanism 23. The transmission assembly 29 includes a first transmission gear 291 that meshes with the drive gear ring 233; a second transmission gear 292 that meshes with the third transmission gear 27; and a connecting shaft 293 fixedly connected to the first and second transmission gears 291, 292.

[0062] Driving cylinder 001, the main body of driving cylinder 001 is fixed, and the telescopic part has a rack structure and can be engaged with the second transmission gear 292.

[0063] During operation, the workpiece enters the self-centering supporting mechanism 23 in a corresponding posture as the workpiece input component 6 moves.

[0064] The driving cylinder 001 drives the second transmission gear 292 to rotate, the second transmission gear 292 drives the third transmission gear 27 to rotate, and the third transmission gear 27 drives the transmission sleeve 25 to rotate. Under the action of the thread, the transmission sleeve 25 rises. The rising transmission sleeve 25 drives the working sleeve 26 to rise.

[0065] At the same time, the first transmission gear 291 rotates synchronously and drives the driving gear ring 233 to rotate, and the driving gear ring 233 drives a camshaft to rotate. Under the action of the cam surface, the left camshaft 231 and the right camshaft 232 extend outward synchronously.

[0066] The part of the workpiece to be clamped is clamped by the conical parts of the left camshaft 231 and the right camshaft 232 and the upper surface of the working sleeve 26. Figure 8 As shown, the parts to be clamped refer to the inner wall of the inward end and the end surface of the outward end of the two working parts g1.

[0067] After the workpiece is clamped, machine tools 4 and 5 process the workpiece. After all the processes are completed, the unloading assembly unloads the workpiece to the conveyor assembly for output.

[0068] The aforementioned unloading assembly can adopt a grabbing robot in the prior art, or a vacuum suction cup combined with a lifting arm (both methods are not shown in the figure).

[0069] In order to further increase the stability of clamping, a radial positioning structure 30 is provided for the workpiece. At the same time, the radial positioning structure is also used for unloading to replace the unloading component, thereby achieving the purpose of simplifying the equipment structure.

[0070] The radial positioning structure 30 comprises: a through-hole formed at the axis of the connecting shaft 293; a tilting collar 301 tightly and rotatably mounted on the outer circumference of the right camshaft 232; the outer ring of the tilting collar 301 has a portion of transmission teeth 302; a collar 303 with a shift block 305 is also fixedly mounted; and correspondingly, a clearance 304 is provided in the guide slide 61 at the position corresponding to the shift block. Within the through-hole is an inscribed shaft 31, which rotates tightly and partially protrudes at both ends. A fourth transmission gear 32 is fixedly mounted on the lower end of the inscribed shaft 31. A positioning frame 33 has one end fixed to the upper end of the inscribed shaft 31 and the other end sleeved on the outer circumference of the connecting shaft 293. The positioning frame 33 is designed to have meshing teeth 331 that mate with the transmission teeth 302 at the portion fixedly connected to the inscribed shaft 31. A distal positioning member 34 is fixedly mounted on the positioning frame 33. The base is fixed to the pre-positioning cylinder 306 in the internal cavity of the base 2. The telescopic rod of the pre-positioning cylinder 306 tightly enters the center hole of the third transmission gear 27 and can extend into the working part g1 of the workpiece during operation to obtain pre-positioning of the workpiece.

[0071] The height of the distal positioning member 34 must exceed the height of the workpiece when it is in the clamping position. When in the working position, the distal positioning member 34 must cover at least half of the workpiece. At the same time, space must be left in the center for the machining tool to enter and exit.

[0072] The radial positioning structure 30 also includes a double-rack transmission assembly 35 integrally fixed to the mounting side plate 10. The double-rack transmission assembly 35 includes a set of slide rails 351. The slide rails 351 are composed of a fixed portion and a movable portion. The fixed portion of the slide rails 351 is fixed to the mounting side plate 10, a fixed toothed belt 352 is fixed to the movable portion of the slide rails 351, an elastic sliding toothed belt 353 is slidably mounted on the movable portion of the slide rails 351, a compression spring 354 is provided on the outer end surface of the elastic sliding toothed belt 353, and a spring mounting seat 355 is provided to accommodate the compression spring 354.

[0073] The fixed toothed belt 352 and the second transmission gear 292 can be engaged and disengaged. When not clamped, they are disengaged, while the elastic sliding toothed belt 353 remains engaged with the fourth transmission gear 32. It should be noted that the teeth of the second transmission gear 292 are relatively wide, sufficient to engage with the third transmission gear 27 at the top and the fixed toothed belt 352 at the bottom.

[0074] The overall working method of the equipment is as follows: after the workpiece enters the workpiece positioning fixture 20, the telescopic rod of the pre-positioning cylinder 306 enters the working part on one side of the workpiece for pre-positioning, and the telescopic part of the driving cylinder 001 pushes the movable part of the slide rail 351, and the elastic sliding toothed belt 353 is pushed and drives the fourth transmission gear 32 to rotate, and the fourth transmission gear 32 drives the positioning frame 33 and the distal positioning member 34 to rotate. While the positioning frame 33 rotates, it drives the flip ring 301 to rotate, and the flip ring 301 drives the ring 303 to rotate, and the combination Figure 4 、 Figure 5 、 Figure 8 The movement direction of the shift block 305 is opposite to the swing direction of the positioning frame 33. The rotation of the shift block 305 causes the workpiece to flip over and finally the positioning frame 33 and the connection support part g2 of the workpiece are clamped. At this time, the connection support part g2 is in a horizontal position, which is convenient for hole processing.

[0075] At this position, the sliding toothed belt 353 has completed its travel. Simultaneously, the fixed toothed belt 352 engages with the second transmission gear 292, causing the second transmission gear 292 to rotate. This synchronizes the rotation of the third transmission gear 27 and the first transmission gear 291, achieving workpiece clamping as previously described. Here, the positioning frame 33 and distal positioning member 34 ensure full clamping of both end faces of the workpiece, improving machining stability. Once clamping is complete, the telescopic rod of the pre-positioning cylinder 306 is withdrawn, allowing hole machining to proceed.

[0076] After the processing is completed, the telescopic part of the driving cylinder 001 is retracted. During the retraction process, the fixed toothed belt 352 moves to drive the second transmission gear 292 to rotate in the opposite direction of the aforementioned clamping direction. The first transmission gear 291 rotates synchronously and drives the driving gear ring 233 to rotate in the opposite direction. The left camshaft 231 and the right camshaft 232 gather toward the center to complete the release of the workpiece.

[0077] The driving gear ring 233 drives the self-centering support mechanism 23 to loosen the workpiece, and the ring 303 and the positioning frame 33 return to the initial position. During the reset process, the positioning frame 33 changes to Figure 6 In the downward swing state shown, the workpiece loses its horizontal state under gravity and slides down to the workpiece output component 7 for output.

[0078] In order to ensure smooth output of the workpiece, a baffle is provided in the vertical machine tool base 2 to prevent the workpiece from slipping off the workpiece output assembly 7.

[0079] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An automated processing equipment for fork frame parts, characterized in that: include: Workbench (1); processing machine tools; A vertical processing machine tool (4) and a horizontal processing machine tool (5), wherein the vertical processing machine tool (4) and the horizontal processing machine tool (5) are fixed to the upper ends of the vertical machine tool base (2) and the horizontal machine tool base (3); the vertical machine tool base (2) and the horizontal machine tool base (3) are fixed to the workbench (1); the vertical machine tool base (2) has a cavity inside; A workpiece positioning jig (20) is capable of automatically clamping and releasing a workpiece. The workpiece positioning jig (20) is fixed to the side of the vertical machine tool base (2), wherein the power and transmission parts are located in the cavity of the vertical machine tool base (2), and the positioning and clamping parts are exposed on the side facing the horizontal machine tool base (3); a threaded through hole (24) is provided on the mounting side plate (10) at a position corresponding to the positioning and clamping part; a workpiece input assembly (6) and a workpiece output assembly (7); A driving cylinder (001), wherein the main body of the driving cylinder (001) is fixed and the telescopic part has a rack structure; The workpiece positioning fixture (20) comprises a mounting side plate (10), a fixture base (21) detachably connected to the mounting side plate (10), a fixture mounting portion (22) with a cylindrical shape and an inner hollow structure on one side of the fixture base (21), a workpiece rest portion (211) provided on the fixture base (21) and located between the fixture mounting portion (22) and the mounting side plate (10), a self-centering support mechanism (23) movably installed in the fixture mounting portion (22), a transmission sleeve (25) threadedly connected to the threaded through hole (24), a working sleeve (26) sleeved in the transmission sleeve (25), a third transmission gear (27) located below the mounting side plate (10) and coaxially connected to the transmission sleeve (25), and a transmission assembly (29) penetrating the fixture base (21) and located on one side of the self-centering support mechanism (23); The self-centering supporting mechanism (23) includes a left camshaft (231), a right camshaft (232), and a driving gear ring (233) clamped on the outer periphery of one of the camshafts. The two camshafts are coaxially rotatably connected, and one end of the cam surface contacts each other, while the other end has a conical surface. After the driving gear ring (233) is clamped on one of the camshafts, the radial direction of the other camshaft is limited within the fixture mounting portion (22). The transmission assembly (29) includes a first transmission gear (291), a second transmission gear (292) and a connecting shaft (293) that are fixedly connected to each other; The second transmission gear (292) is engaged with the rack structure of the driving cylinder (001).

2. The automated processing equipment for fork frame parts according to claim 1, characterized in that: The workpiece input assembly (6) comprises a conveyor belt assembly and a guide slideway (61), and the angle of the free end of the guide slideway (61) is adjustable.

3. The automated processing equipment for fork frame parts according to claim 2, characterized in that: The workpiece output assembly (7) comprises a conveyor belt assembly and a discharge assembly.

4. The automated processing equipment for fork frame parts according to claim 3, characterized in that: The workpiece positioning fixture (20) further includes a radial positioning structure (30), and the radial positioning structure (30) includes: a through hole extending through the connecting shaft (293); A flip collar (301) rotatably sleeved on the outer periphery of the right camshaft (232), wherein the outer ring of the flip collar (301) has a portion of transmission teeth (302); A ferrule (303) is fixedly mounted on the outer periphery of the flip ring (301) and has a shifting block (305); An inscribed shaft (31) rotatable in the through hole, with both ends of the inscribed shaft (31) partially extending beyond the through hole; a fourth transmission gear (32) fixed to the lower end of the inscribed shaft (31); A positioning frame (33) having one end fixed to the upper end of the inscribed shaft (31) and the other end sleeved on the outer periphery of the connecting shaft (293), wherein the positioning frame (33) has meshing teeth (331) that cooperate with the transmission teeth (302) at a portion fixedly connected to the inscribed shaft (31); A distal positioning member (34) fixed on the positioning frame (33); The base of the pre-positioning cylinder (306) is fixed in the inner cavity of the vertical machine tool base (2); the telescopic rod of the pre-positioning cylinder (306) can enter the working part (g1) of the workpiece to obtain pre-positioning of the workpiece.

5. The automated processing equipment for fork frame parts according to claim 4, characterized in that: The radial positioning structure (30) further includes a double rack transmission assembly (35) integrally fixed on the mounting side plate (10), the double rack transmission assembly (35) including a slide rail (351), a fixed toothed belt (352) fixed on the movable portion of the slide rail (351), an elastic sliding toothed belt (353) slidably mounted on the movable portion of the slide rail (351), a compression spring (354) disposed against the outer end surface of the elastic sliding toothed belt (353), and a spring mounting seat (355) for placing the compression spring (354); the fixed toothed belt (352) can be engaged with and disengaged from the second transmission gear (292), and the elastic sliding toothed belt (353) remains in an engaged state with the fourth transmission gear (32).

6. The automated processing equipment for fork frame parts according to claim 5, characterized in that: The guide slideway (61) is provided with an avoidance opening (304) at a position corresponding to the shifting block (305).

7. The automated processing equipment for fork frame parts according to claim 6, characterized in that: The height of the distal positioning member (34) is higher than the height of the workpiece in the clamping state. When the distal positioning member (34) enters the working position, the size of the distal positioning member (34) at least covers the majority of the workpiece disc, while leaving space for the machining tool to enter and exit at the center.

8. The automated processing equipment for fork frame parts according to claim 7, characterized in that: The tooth width of the second transmission gear (292) is sufficient to mesh with the third transmission gear (27) at the upper half and mesh with the fixed toothed belt (352) at the lower half.

9. The automated processing equipment for fork frame parts according to claim 8, characterized in that: It also includes a baffle plate arranged in the vertical machine tool base (2) to prevent the workpiece from falling off the workpiece output assembly (7).

10. The automated processing equipment for fork frame parts according to claim 9, characterized in that: After the workpiece enters the workpiece positioning fixture (20), the telescopic rod of the pre-positioning cylinder (306) enters the working part (g1) on one side of the workpiece for pre-positioning, and drives the telescopic part of the cylinder (001) to push the movable part of the slide rail (351), and the elastic sliding toothed belt (353) moves and drives the fourth transmission gear (32) to rotate, and the fourth transmission gear (32) drives the positioning frame (33) and the distal positioning member (34) to rotate. When the positioning frame (33) rotates, it drives the flip ring (301) to rotate, and the flip ring (301) drives the ring (303) to rotate. The action direction of the shift block (305) is opposite to the swing direction of the positioning frame (33). The rotation of the shift block (305) causes the workpiece to flip and finally the positioning frame (33) and the connecting support part (g2) of the workpiece are clamped together.

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