Hot forging of a forklift separation sleeve

Abstract

The present invention discloses a hot forging process for a forklift separation sleeve, and relates to the field of hot forging. The following scheme is proposed, which includes a support assembly, the support assembly is composed of a first support frame and a first support plate fixed on the first support frame, a second support frame is fixed on the first support plate, a first oil cylinder is fixed on both sides of the top of the second support frame, a connecting guide rod is connected and fixed to the output end of the first oil cylinder, the connecting guide rod is slidably connected to the second support frame, and a cutter is fixed to the end of the connecting guide rod away from the first oil cylinder, a first mold is provided on the first support plate, and a convex shaft forging assembly is provided on both sides of the first mold. By installing the first oil cylinder on both sides of the first mold, and connecting the cutter to the first oil cylinder through the connecting guide rod, the blank can be cut into two side ears in cooperation with the first mold, and then the side ears are squeezed by the convex shaft forging assembly to forge a convex shaft, thereby ensuring the overall strength of the separation sleeve.

Description

Technical Field

[0001] The invention relates to the field of hot forging, and in particular to hot forging of a forklift separation sleeve. Background Art

[0002] The release sleeve outside the release bearing on the forklift is an important component that drives the release bearing to move. The existing forklift release sleeve shape manual is attached. Figure 7 As shown, the forklift separation sleeve is mainly composed of two parts: a cylinder and a convex shaft;

[0003] The traditional hot forging process of the forklift separation sleeve can form a cylinder by driving the inner mold to impact the blank with the cylinder, but there are cams on both sides of the forklift separation sleeve, and the cams are indispensable parts of the forklift separation sleeve. The current hot forging process can only produce a cylinder. The cams need to be hot forged independently and then combined with the cylinder by welding. Separate processing increases the production time, and the welding between the cam and the cylinder is easy to break, and the strength is not as high as that of the one-piece hot forging. Summary of the invention

[0004] 1. Purpose of the invention

[0005] In view of this, the object of the present invention is to provide a hot forging process for a forklift release sleeve, so as to realize hot forging of a cam shaft directly on a blank.

[0006] (II) Technical solution

[0007] In order to achieve the above technical purpose, the present invention provides a hot forging process for a forklift separation sleeve:

[0008] The invention relates to a method for facilitating an axial movement of a plurality of piston rods, wherein the piston rods are connected to and fixed to the piston rod of the piston rod, and the piston rods are connected to and fixed to the piston rod of the piston rod.

[0009] Preferably, a third oil cylinder and a flipping mechanism are fixed under the first support plate, and the flipping mechanism is composed of a flipping mold, a transmission assembly and a connecting shaft. The third oil cylinder is linked to the flipping mold through the transmission assembly, and the output end of the third oil cylinder is equipped with a transmission assembly, and the transmission assembly includes a connecting plate, which is fixed to the first support plate, and the connecting plate is rotatably connected to a curved plate through a rotating shaft, and the connecting plate is rotatably connected to a push-pull rod through a rotating shaft, and a connecting seat is fixed to the output end of the third oil cylinder, and the connecting seat is hinged to the push-pull rod.

[0010] Preferably, the bottom of the curved plate is coaxially rotatably connected to a connecting rod with the push-pull rod, the end of the connecting rod facing away from the push-pull rod is rotatably connected to a connecting block, the end of the connecting block away from the connecting rod is rotatably connected to a rack, the outer surface of the rack is slidably connected to a sleeve, and the sleeve is fixed on the first support frame, and the lower surface of the rack is meshed with a gear.

[0011] Preferably, the flip mold is connected and fixed to the gear via a connecting shaft, and both ends of the connecting shaft are rotatably connected to side fixing plates, and the side fixing plates are fixed on the first supporting frame.

[0012] Preferably, the fixing frame is composed of side plates and support plates, and there are two side plates and two support plates. The two side plates are distributed on both sides of the two support plates, and the side plates are hollow triangles. The curved plates are fixedly connected to the side plates, and the two second oil cylinders in the two convex shaft forging assemblies are respectively fixed on the two support plates, and the support plates are wedge-shaped, and the second oil cylinders are obliquely installed on the support plates.

[0013] Preferably, the flip mold is composed of a cylinder and a guide plate, the guide plate is semi-arc-shaped, and the guide plate is welded and fixed on the outer surface of the cylinder, the groove is opened perpendicular to the first mold, and the cutter is arranged obliquely with the first mold.

[0014] Preferably, the cutter is semi-arc-shaped, the width of the cutter is equal to the width of the cutting groove on the first mold, a guide block is fixed on the second support frame, and the connecting guide rod is slidably connected to the second support frame through the guide block.

[0015] Preferably, a roller guide is provided on the side of the flip mold, a second support plate is fixed to the bottom of the roller guide, a second mold and a third support frame are fixed to the upper surface of the second support plate, and the third support frame is located above the second mold, a fourth oil cylinder is fixed on the third support frame, and the fourth oil cylinder and the second mold are located on the same vertical line.

[0016] It can be seen from the above technical solutions that the present application has the following beneficial effects:

[0017] 1: By installing the first oil cylinder on both sides of the first mold, and connecting the cutter to the first oil cylinder through a connecting guide rod, the blank can be cut into two side ears in cooperation with the first mold, and then the second oil cylinder drives the forming mold through the U-shaped frame to extrude the side ears, so as to forge the convex shaft and ensure the overall strength of the separation sleeve.

[0018] 2: By assembling a transmission assembly on the support assembly, the first mold can be directly driven to flip, so that the semi-finished blank can be flipped through the flipping mold and poured into the roller guide rail, and then slide into the second mold to continue forging. There is no need to manually flip and transport the blank, which improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a hot forging process of a forklift separation sleeve provided by the present invention;

[0021] Figure 2 A schematic diagram of the partial structure of a hot forging process of a forklift separation sleeve provided by the present invention;

[0022] Figure 3 A hot forging method for a forklift separation sleeve provided by the present invention Figure 2 Schematic diagram of the explosion structure;

[0023] Figure 4 A hot forging method for a forklift separation sleeve provided by the present invention Figure 2 A side view structural schematic diagram of;

[0024] Figure 5 A hot forging method for a forklift separation sleeve provided by the present invention Figure 4 A schematic diagram of the cross-sectional structure at AA;

[0025] Figure 6 A hot forging method for a forklift separation sleeve provided by the present invention Figure 5 Schematic diagram of the overall structure of the transmission assembly;

[0026] Figure 7 A hot forging method for a forklift separation sleeve provided by the present invention Figure 2 A schematic diagram of the flipping state structure of the flipping mold;

[0027] Figure 8A schematic diagram of the overall structure of a forklift release sleeve that is processed by hot forging of a forklift release sleeve provided by the present invention.

[0028] Description of the drawings: 1. Support assembly; 101. First support frame; 102. First support plate; 2. First mold; 3. Second support frame; 4. First oil cylinder; 5. Connecting guide rod; 6. Cutter; 7. Fixed frame; 8. Second oil cylinder; 9. Forming mold; 10. Flip mold; 11. Transmission assembly; 111. Connecting plate; 112. Connecting seat; 113. Push-pull rod; 114. Curved plate; 115. Connecting rod; 116. Connecting block; 117. Rack; 118. Sleeve; 119. Gear; 120. Side fixing plate; 12. Third oil cylinder; 13. U-shaped frame; 14. Connecting shaft; 15. Roller guide rail; 16. Second support plate; 17. Third support frame; 18. Fourth oil cylinder; 19. Second mold; 20. Forklift separation sleeve. DETAILED DESCRIPTION

[0029] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0030] Reference Figure 1-8 :

[0031] A hot forging process of a forklift separation sleeve includes a support assembly 1, the support assembly 1 is composed of a first support frame 101 and a first support plate 102 fixed on the first support frame 101, a first mold 2 is provided on the first support plate 102, and grooves are provided on both sides of the first mold 2, such as Figure 1 As shown;

[0032] A second support frame 3 is fixed on the first support plate 102, and first oil cylinders 4 are fixed on both sides of the top of the second support frame 3. A connecting guide rod 5 is connected and fixed to the output end of the first oil cylinder 4. The connecting guide rod 5 is slidably connected to the second support frame 3, and a cutter 6 is fixed to the end of the connecting guide rod 5 away from the first oil cylinder 4. The cutter 6 is made of high-strength metal material to ensure cutting strength, such as titanium alloy. The connecting guide rod 5 is driven by the first oil cylinder 4 to drive the cutter 6 to cut the blank. The cutting groove on the first mold 2 is opened perpendicular to the first mold 2, and the cutter 6 and the first mold 2 are arranged obliquely, so that the cutter 6 can cut the blank at an angle, so that the material cut from the blank is separated to both sides;

[0033] Further, such as Figure 1As shown, the cutter 6 is semi-arc shaped, so that the cut blank is thick in the middle and thin on both sides, which is more conducive to forging into an axis shape. The width of the cutter 6 is equal to the width of the cutting groove on the first mold 2, so that the cutter 6 can be used in conjunction with the first mold 2. A guide block is fixed on the second support frame 3, and the connecting guide rod 5 is slidably connected to the second support frame 3 through the guide block to ensure the sliding stability of the connecting guide rod 5.

[0034] After the side ears are cut out on both sides of the blank, the side ears need to be forged into an axis shape, so convex shaft forging components are installed on both sides of the first mold 2, and the convex shaft forging components are composed of a second oil cylinder 8, a forming mold 9 and a U-shaped frame 13. A fixing frame 7 is fixed on the first mold 2, and the second oil cylinder 8 is fixed on both the front and rear sides of the fixing frame 7. The U-shaped frame 13 is fixed on the output end of the second oil cylinder 8, and the forming mold 9 is fixed on the end of the U-shaped frame 13 away from the second oil cylinder 8. The opposite surfaces of the two forming molds 9 in the two convex shaft forging components are semicircular, such as Figure 3 As shown, the two forming dies 9 can form a circular inner cavity when combined, thereby forging the side ears into a round shaft shape.

[0035] Specifically, Figure 5 and Figure 6 As shown, a third oil cylinder 12 and a flip mechanism are fixed below the first support plate 102. The flip mechanism is composed of a flip mold 10, a transmission assembly 11 and a connecting shaft 14. The third oil cylinder 12 is linked with the flip mold 10 through the transmission assembly 11. The output end of the third oil cylinder 12 is equipped with the transmission assembly 11. The transmission assembly 11 includes a connecting plate 111, which is fixed on the first support plate 102. The connecting plate 111 is rotatably connected to a curved plate 114 through a rotating shaft. The connecting plate 111 is rotatably connected to a push-pull rod 113 through a rotating shaft. A connecting seat 112 is fixed on the output end of the third oil cylinder 12, and the connecting seat 112 is hinged to the push-pull rod 113. The connecting seat 112 is pushed by the third oil cylinder 12, so that the connecting seat 112 can pull or push the push-pull rod 113. The push-pull rod 113 can drive the curved plate 114 to rotate with the connection point with the connecting plate 111 as the center of the circle. The fixing frame 7 is fixed on the curved plate 114, so that the fixing frame 7 can be driven to flip.

[0036] More specifically, the bottom of the curved plate 114 is coaxially rotatably connected to a connecting rod 115 with the push-pull rod 113, and the end of the connecting rod 115 away from the push-pull rod 113 is rotatably connected to a connecting block 116, and the end of the connecting block 116 away from the connecting rod 115 is rotatably connected to a rack 117, and the outer surface of the rack 117 is slidably connected to a sleeve 118, and the sleeve 118 is fixed on the first support frame 101, and the lower surface of the rack 117 is meshed with a gear 119. The connecting rod 115 pulls the connecting block 116 to pull the rack 117, so that the rack 117 drives the gear 119 to rotate.

[0037] Furthermore, the flip mold 10 is connected and fixed to the gear 119 via a connecting shaft 14, and both ends of the connecting shaft 14 are rotatably connected to a side fixing plate 120, which is fixed on the first support frame 101. By rotating the gear 119, the connecting shaft 14 can be driven to rotate, thereby driving the flip mold 10 to flip.

[0038] Furthermore, the fixing frame 7 is composed of a side plate and a supporting plate, and both the side plate and the supporting plate are provided with two side plates, which are distributed on both sides of the two supporting plates. The side plates are in the shape of a hollow triangle, which improves the overall strength of the fixing frame 7 while reducing weight. The curved plate 114 is fixedly connected to the side plate, and the two second oil cylinders 8 in the two convex shaft forging assemblies are respectively fixed on the two supporting plates, and the supporting plates are in the shape of a wedge, and the second oil cylinder 8 is obliquely installed on the supporting plates, so that the second oil cylinder 8 can output power at an angle, so that the forming mold 9 can squeeze the side ears from top to bottom, because the side ears are cut out to bend upward, and squeezing the side ears from top to bottom can flatten the side ears, forming a convex shaft perpendicular to the blank, and the finished product is as follows Figure 8 shown.

[0039] More preferably, the flip mold 10 is composed of a cylinder and a guide plate, the guide plate is semi-arc-shaped, and the guide plate is welded and fixed on the outer surface of the cylinder.

[0040] like Figure 1 As shown, a roller guide 15 is provided on the side of the flip mold 10, and the cross-section of the roller guide 15 is trapezoidal. When the semi-finished blank lies on the roller guide 15 and slides down, the convex shafts on both sides of the semi-finished blank can be placed on the side of the roller guide 15, so that the semi-finished blank is not deflected during transportation. A second support plate 16 is fixed to the bottom of the roller guide 15, and a second mold 19 and a third support frame 17 are fixed to the upper surface of the second support plate 16, and the third support frame 17 is located above the second mold 19, and a fourth oil cylinder 18 is fixed to the third support frame 17. A punch (not shown) that cooperates with the second mold 19 is installed at the output end of the fourth oil cylinder 18. The fourth oil cylinder 18 and the second mold 19 are located on the same vertical line. Through the operation of the fourth oil cylinder 18, the punch can be driven to extrude the semi-finished blank, so that the semi-finished blank continues to be formed in the second mold 19.

[0041] Working principle: When in use, the external manipulator or conveyor belt of the blank is sent to the first mold 2, and the connecting guide rod 5 is driven by the first oil cylinder 4, so that the connecting guide rod 5 and the cutter 6 impact the blank, so that the side ears are cut out on both sides of the blank, and then the U-shaped frame 13 is driven by the second oil cylinder 8, so that the U-shaped frame 13 drives the forming mold 9 to clamp the side ears, and the side ears are squeezed by two opposite forming molds 9 at the same time, and the side ears are pressed into a round shaft shape;

[0042] Then, the third oil cylinder 12 is used to pull the connecting seat 112, so that the connecting seat 112 pulls the bottom of the curved plate 114 through the push-pull rod 113, so that the curved plate 114 rotates with the point connected to the connecting plate 111 as the axis, so that the curved plate 114 drives the convex shaft forging assembly to flip through the fixed frame 7, and the convex shaft forging assembly can drive the semi-finished blank to flip. While the semi-finished blank is flipping, the push-pull rod 113 simultaneously pulls the connecting block 116 through the connecting rod 115, and the connecting block 116 drives the rack 117 to turn the gear 119 to rotate, so that the gear 119 drives the flipping mold 10 to flip clockwise through the connecting shaft 14 and catch the semi-finished blank, and then the fixed frame 7 drives the convex shaft forging assembly to reset, and at the same time, the flipping mold 10 can rotate in the opposite direction, flipping the first mold 2 and sliding it into the second mold 19 through the roller guide 15;

[0043] Since the semi-finished blank is turned over, the orientation of the semi-finished blank in the second die 19 is the same as that in the first die 2. In combination with the shape of the second die 19, the fourth oil cylinder 18 presses up and down to forge the semi-finished blank.

[0044] It is worth mentioning that the formed blank can be picked up by a clamp and sent away for automated production.

[0045] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. A hot forging processing device for a forklift release sleeve, comprising a support assembly (1), wherein the support assembly (1) is composed of a first support frame (101) and a first support plate (102) fixed to the first support frame (101), It is characterized in that A second support frame (3) is fixed on the first support plate (102), and first cylinders (4) are fixed on both sides of the top of the second support frame (3). A connecting guide rod (5) is connected and fixed to the output end of the first cylinder (4), and the connecting guide rod (5) is slidably connected to the second support frame (3), and a cutter (6) is fixed to the end of the connecting guide rod (5) away from the first cylinder (4). A first mold (2) is provided on the first support plate (102), and cutting grooves are provided on both sides of the first mold (2). A fixing frame (7) is fixed on the first mold (2), and a second cylinder (8) is fixed on both the front and rear sides of the fixing frame (7). A U-shaped frame (13) is fixed to the output end of the second cylinder (8), and a forming mold (9) is fixed to the end of the U-shaped frame (13) away from the second cylinder (8). The second cylinder (8), the forming mold (9) and the U-shaped frame (13) constitute a convex shaft forging assembly, and two convex shaft forging assemblies are provided, and the two convex shaft forging assemblies are distributed on both sides of the first mold (2).

2. A hot forging processing device for a forklift release sleeve according to claim 1, It is characterized in that A third oil cylinder (12) and a flipping mechanism are fixed below the first support plate (102). The flipping mechanism is composed of a flipping mold (10), a transmission assembly (11) and a connecting shaft (14). The third oil cylinder (12) is linked to the flipping mold (10) through the transmission assembly (11). The output end of the third oil cylinder (12) is equipped with a transmission assembly (11). The transmission assembly (11) comprises a connecting plate (111). The connecting plate (111) is fixed on the first support plate (102). The connecting plate (111) is rotatably connected to a curved plate (114) via a rotating shaft. The connecting plate (111) is rotatably connected to a push-pull rod (113) via a rotating shaft. A connecting seat (112) is fixed to the output end of the third oil cylinder (12), and the connecting seat (112) is hinged to the push-pull rod (113). The bottom of the curved plate (114) is coaxially rotatably connected to a connecting rod (115) with the push-pull rod (113); one end of the connecting rod (115) away from the push-pull rod (113) is rotatably connected to a connecting block (116); one end of the connecting block (116) away from the connecting rod (115) is rotatably connected to a rack (117); the outer surface of the rack (117) is slidably connected to a sleeve (118), and the sleeve (118) is fixed to the first support frame (101); and the lower surface of the rack (117) is meshed with a gear (119); The flip mold (10) is connected and fixed to the gear (119) via a connecting shaft (14), and both ends of the connecting shaft (14) are rotatably connected to a side fixing plate (120), and the side fixing plate (120) is fixed on the first support frame (101); The fixing frame (7) is composed of a side plate and a support plate, and two side plates and two support plates are provided. The two side plates are distributed on both sides of the two support plates, and the side plates are in the shape of a hollow triangle. The curved plate (114) is fixedly connected to the side plates. The two second oil cylinders (8) in the two convex shaft forging assemblies are respectively fixed on the two support plates, and the support plates are in the shape of a wedge. The second oil cylinders (8) are obliquely installed on the support plates.

3. A hot forging device for a forklift release sleeve according to claim 2, It is characterized in that The flip mold (10) is composed of a cylinder and a guide plate, the guide plate is semi-arc-shaped and is welded and fixed on the outer surface of the cylinder, and grooves are provided on both sides of the adjacent cutting knife (6) of the first mold (2), the grooves are provided perpendicular to the first mold (2), and the cutting knife (6) and the first mold (2) are arranged obliquely.

4. A hot forging device for a forklift release sleeve according to claim 1, It is characterized in that The cutter (6) is semi-arc-shaped, and the width of the cutter (6) is equal to the width of the cutting groove on the first mold (2). A guide block is fixed on the second support frame (3), and the connecting guide rod (5) is slidably connected to the second support frame (3) via the guide block.

5. The hot forging processing device for a forklift release sleeve according to claim 2, It is characterized in that A roller guide rail (15) is provided on the side of the flip mold (10); a second support plate (16) is fixed to the bottom of the roller guide rail (15); a second mold (19) and a third support frame (17) are fixed to the upper surface of the second support plate (16); the third support frame (17) is located above the second mold (19); a fourth oil cylinder (18) is fixed on the third support frame (17); and the fourth oil cylinder (18) and the second mold (19) are located on the same vertical line.

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