Linkage type same-side adjusting center frame

Abstract

According to the linkage type same-side adjusting center frame, first supporting bodies are arranged on the two sides of the upper portion in a center frame body, second supporting bodies are arranged on the two sides of the lower portion in the center frame body, and transmission shafts are rotationally connected between the first supporting bodies and the second supporting bodies and between the second supporting bodies through universal couplings. According to the scheme, after the lifting device is arranged at the corresponding position, the electric rotating tool is connected with the bit clamping column, the bit clamping column is rotated, and the screw can ascend and descend through meshing transmission between the main gear shaft and the auxiliary gear shaft, so that the diameter length of center clamping of the center frame can be adjusted in a linkage mode; according to the scheme, frequent manual adjustment is avoided, rotation transmission can be braked in a braking mode, the workpiece clamping stability is guaranteed in the vibration process, the air cylinder can guarantee that the air cylinder has a safe buffering range when the workpiece vibrates, and the situation that the center frame and the workpiece are damaged due to too large vibration impact is avoided.

Description

Technical Field

[0001] This invention relates to the field of machine tool center rest technology, specifically a linkage-type same-side adjustable center rest. Background Technology

[0002] With the development of the national high-end equipment manufacturing strategic industry, machine tool equipment is widely used in aerospace, wind power and nuclear power, mining machinery, large-scale water conservancy and other fields. Especially in the production field involving aircraft landing gear structural frames, higher requirements are placed on the precision, efficiency, safety and user-friendliness of machine tool processing. As a workpiece mounting and support device, the rationality of the center rest's structure directly affects the overall improvement of machine tool processing. Traditional center rests adopt a closed structure of upper and lower bodies, with support slides arranged on both sides of the center rest body. When hoisting workpieces, the upper body of the center rest needs to be repeatedly opened and closed. When adjusting the support slides on both sides, workers need to run back and forth on the machine tool bed, which is time-consuming and labor-intensive, with low work efficiency. The working conditions such as iron filings at the rear of the bed are complex, and the back-and-forth running of workers poses safety hazards. Furthermore, the severe vibration during workpiece processing can cause the frame to loosen, and may cause certain damage to the workpiece and the frame. Summary of the Invention

[0003] This invention provides a linkage-type same-side adjustment center frame to solve the technical problems mentioned in the background art.

[0004] A linkage-type same-side adjustable center frame includes a center frame body. The center frame body has first support bodies on its upper two sides and second support bodies on its lower two sides. A drive shaft is rotatably connected between the first and second support bodies and between the second support bodies via a universal coupling. A first gear ring is rotatably mounted on the upper and lower ends of the side of the first support body, and a first hollow screw rotatably passes through the side of the first support body. The inner end face of the first gear ring is threaded, and the first hollow screw spirally passes through the first gear ring. A first main gear shaft is rotatably mounted on one side of the first support body, and one side of the first main gear shaft rotatably meshes with a first secondary gear shaft. The first secondary gear shaft and the first gear... The wheel rims rotate and mesh, and the upper and lower ends of the middle part of the second support body are rotatably provided with a second gear ring. The two sides of the second gear ring are rotatably meshed with a second auxiliary gear shaft, and the outer side of the second auxiliary gear shaft is rotatably meshed with a second main gear shaft. The middle part of the second support body is rotatably provided with a second hollow screw. The inner end face of the second gear ring is provided with a thread. The second hollow screw spirally passes through the second gear ring. The inner end faces of the first hollow screw and the second hollow screw are movably provided with top columns. The transmission shaft is coaxially connected to the first main gear shaft and the second main gear shaft through a universal coupling. Preferably, the linkage type same-side adjustment center frame is characterized in that the upper and lower ends of the first hollow screw and the second hollow screw movably pass through the center frame body.

[0005] Preferably, the linkage-type same-side adjustment center frame is characterized in that a bit retainer is coaxially provided on the upper end face of the first main gear shaft, and the bit retainer rotates and extends out of the center frame body.

[0006] Preferably, the linkage-type same-side adjustment center frame is characterized in that the inner and outer ends of the first hollow screw and the second hollow screw are provided with top plates, and the first hollow screw and the second hollow screw are rotatably connected to the top plates. The top plates are movably disposed outside the center frame body, and auxiliary rods are arrayed and connected between the top plates. The auxiliary rods are located on the periphery of the first hollow screw and the second hollow screw.

[0007] Preferably, the linkage-type same-side adjustment center frame is characterized by having an auxiliary wheel rotatably mounted at the end of the top rod.

[0008] Preferably, the linkage-type same-side adjustment center frame is characterized in that an air buffer cylinder is provided on the outer side of the top plate of the outer end of the first hollow screw and the second hollow screw, and a moving rod is movably provided in the middle of the first hollow screw and the second hollow screw. The air buffer cylinder controls the connection of the moving rod, and the lower end of the moving rod is connected to the top rod, and a pressure sensor is provided at the connection.

[0009] Preferably, the linkage-type same-side adjustment center frame is characterized in that a support plate is provided on the outer side of the top plate of the first hollow screw and the second hollow screw, and support columns are arranged in an array between the support plate and the top plate, and an air buffer cylinder is provided on the outer end face of the support plate.

[0010] Preferably, the linkage-type same-side adjustment center frame is characterized in that the front and rear end faces of the center frame body are provided with support boxes, the outer end face of the support box is provided with a cylinder, the inside of the support box is provided with a brake block, and the position of the brake block is located on both sides of the transmission shaft, and the cylinder controls the connection of the brake block.

[0011] Preferably, the linkage-type same-side adjustment center frame is characterized in that the inner end face of the brake block is a curved surface.

[0012] Beneficial effects: Based on the workpiece length, this solution is set to the appropriate position using a lifting device. A screwdriver bit holder is connected via an electric rotary tool. Rotating the bit holder, through the meshing transmission between the main gear shaft and the auxiliary gear shaft, allows the screw to rise and fall, thus enabling a linkage adjustment of the center clamping diameter of the center frame. This avoids frequent manual adjustments. Furthermore, this solution uses a braking mechanism to brake the rotational transmission, ensuring workpiece clamping stability during vibration. The cylinder provides a safe buffer range during workpiece vibration, preventing damage to the center frame and workpiece due to excessive vibration impact. Attached Figure Description

[0013] Figure 1 Perspective view of the invention; Figure 2 Analytical front view of the present invention; Figure 3 Side sectional view of the present invention; Figure 4 A perspective view of the first support body of the present invention; Figure 5 A three-dimensional cross-sectional view of the first support body of the present invention; Figure 6 A perspective view of the second support body of the present invention; Figure 7 Cross-sectional view of the second support of the present invention In the figure: center frame body 1, first support body 101, first hollow screw 1011, first main gear shaft 1012, bit holder 10121, first auxiliary gear shaft 1013, first gear ring 1014, second support body 102, second gear ring 1021, second auxiliary gear shaft 1022, second main gear shaft 1023, second hollow screw 1024, universal coupling 103, transmission shaft 104, top plate 105, auxiliary rod 1051, support plate 1052, support column 1053, top rod 106, auxiliary wheel 1061, air buffer cylinder 107, moving rod 1071, pressure sensor 1072, support box 108, cylinder 1081, brake block 1082. Detailed Implementation

[0014] The implementation process of the present invention will be described in detail below with reference to the accompanying drawings. The described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a welded connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0016] like Figures 1-7The illustrated linkage-type same-side adjustment center frame includes a center frame body 1. The center frame body 1 is characterized by having first support bodies 101 on both upper sides and second support bodies 102 on both lower sides. A drive shaft 104 is rotatably connected between the first support bodies 101 and the second support bodies 102, and between the second support bodies 102, via a universal coupling 103. A first gear ring 1014 is rotatably mounted on the upper and lower ends of the side of the first support body 101, and a first hollow screw 1011 rotatably passes through the side of the first support body 101. The inner end face of the first gear ring 1014 is threaded, and the first hollow screw 1011 spirally passes through the first gear ring 1014. A first main gear shaft 1012 is rotatably mounted on one side of the first support body 101, and one side of the first main gear shaft 1012 rotatably meshes with a first auxiliary gear shaft 1013. 3. The first gear ring 1014 is rotatably engaged with the second support body 102. The upper and lower ends of the middle part of the second support body 102 are rotatably provided with the second gear ring 1021. The two sides of the second gear ring 1021 are rotatably engaged with the second auxiliary gear shaft 1022. The outer side of the second auxiliary gear shaft 1022 is rotatably engaged with the second main gear shaft 1023. The middle part of the second support body 102 is rotatably provided with the second hollow screw 1024. The inner end face of the second gear ring 1021 is provided with threads. The second hollow screw 1024 spirally passes through the second gear ring 1021. The inner end faces of the first hollow screw 1011 and the second hollow screw 1024 are movably provided with top columns. The transmission shaft 104 is coaxially connected to the first main gear shaft 1012 and the second main gear shaft 1023 through the universal coupling 103. Furthermore, the upper and lower ends of the first hollow screw 1011 and the second hollow screw 1024 movably pass through the central frame body 1.

[0017] Furthermore, a bit holder 10121 is coaxially provided on the upper end face of the first main gear shaft 1012, and the bit holder 10121 extends out of the center frame body 1.

[0018] Furthermore, the inner and outer ends of the first hollow screw 1011 and the second hollow screw 1024 are provided with top plates 105, and the first hollow screw 1011 and the second hollow screw 1024 are rotatably connected to the top plates 105. The top plates 105 are movably disposed outside the central frame body 1, and auxiliary rods 1051 are arrayed and connected between the top plates 105. The auxiliary rods 1051 are located on the periphery of the first hollow screw 1011 and the second hollow screw 1024.

[0019] Furthermore, an auxiliary wheel 1061 is rotatably provided at the end of the push rod 106.

[0020] Furthermore, an air buffer cylinder 107 is provided on the outer side of the top plate 105 at the outer end of the first hollow screw 1011 and the second hollow screw 1024. A moving rod 1071 is movably provided in the middle of the first hollow screw 1011 and the second hollow screw 1024. The air buffer cylinder 107 controls the moving rod 1071. The lower end of the moving rod 1071 is connected to the top rod 106, and a pressure sensor 1072 is provided at the connection.

[0021] Furthermore, a support plate 1052 is provided on the outer side of the top plate 105 of the first hollow screw 1011 and the second hollow screw 1024, and support columns 1053 are arranged in an array between the support plate 1052 and the top plate 105. The air buffer cylinder 107 is provided on the outer end face of the support plate 1052.

[0022] Furthermore, the front and rear ends of the central frame body 1 are provided with support boxes 108, the outer end face of the support box 108 is provided with a cylinder 1081, the inside of the support box 108 is provided with a brake block 1082, and the position of the brake block 1082 is located on both sides of the transmission shaft 104. The cylinder 1081 controls the connection of the brake block 1082.

[0023] Furthermore, the inner end face of the brake block 1082 is curved.

[0024] Example 1 A first gear ring 1014 is rotatably mounted on the upper and lower ends of the side of the first support body 101, and a first hollow screw 1011 is rotatably passed through the side of the first support body 101. The inner end face of the first gear ring 1014 is threaded, and the first hollow screw 1011 spirally passes through the first gear ring 1014. A first main gear shaft 1012 is rotatably mounted on one side of the first support body 101. A bit catch 10121 is coaxially mounted on the upper end face of the first main gear shaft 1012. The bit catch 10121 rotatably extends out of the center frame body 1. A first auxiliary gear shaft 1013 is rotatably engaged on one side of the first main gear shaft 1012. The first auxiliary gear shaft 1013 is rotatably engaged with the first gear ring 1014. A second support body 102 is rotatably mounted on the upper and lower ends of the middle. A second gear ring 1021 has a second auxiliary gear shaft 1022 rotatably meshed on both sides. A second main gear shaft 1023 rotatably meshes on the outer side of the second auxiliary gear shaft 1022. A second hollow screw 1024 rotatably passes through the middle of the second support body 102. The inner end face of the second gear ring 1021 is threaded. The second hollow screw 1024 spirally passes through the second gear ring 1021. A top post is movably provided on the inner end face of the first hollow screw 1011 and the second hollow screw 1024. An auxiliary wheel 1061 rotatably provides at the end of the top post 106. The transmission shaft 104 is coaxially connected to the first main gear shaft 1012 and the second main gear shaft 1023 through a universal coupling 103. The first hollow screw 1011 and the second main gear shaft 1023 are connected to the second main gear shaft 1022 and the second main gear shaft 1023 through a universal coupling 103. The upper and lower ends of the two hollow screws 1024 movably pass through the central frame body 1. Top plates 105 are provided at the inner and outer ends of the first and second hollow screws 1024. The first hollow screw 1011 and the second hollow screw 1024 are rotatably connected to the top plates 105. The top plates 105 are movably disposed outside the central frame body 1. Auxiliary rods 1051 are arrayed and connected between the top plates 105. The auxiliary rods 1051 are located around the first hollow screw 1011 and the second hollow screw 1024. The lower parts of the first gear ring 1014 and the second gear ring 1021 involved in this solution can be in an extended state. Their extended parts are rotatably connected to the first support body 101 and the second support body 102 via bearings, and connected to the rotating part via the bit chuck 10121. A wrench or an electric shaft for transmission is used to rotate the first main gear shaft 1012, which in turn rotates the first auxiliary gear shaft 1013, thereby enabling the first hollow screw 1011 to move up and down. At this time, the top plate 105 and the auxiliary rod 1051 can ensure the smooth movement of the first hollow screw 1011 and the second hollow screw 1024, thus enabling the top column to move inward and outward at the recess in the center of the central frame body 1. While the first main gear shaft 1012 rotates, the universal coupling 103 and the transmission shaft 104 can drive the second main gear shaft 1023 and the second auxiliary gear shaft 1022 to rotate, thereby meshing and driving the second gear ring 1021 to rotate, causing the second hollow screw 1024, through which the helix passes, to move up and down.In this design, both sides of the first main gear shaft 1012 are equipped with bit retainers 10121, allowing for transmission input from both sides or simultaneous transmission input from both sides. The first main gear shaft 1012, the first auxiliary gear shaft 1013, the second main gear shaft 1023, and the second auxiliary gear shaft 1022 all have gear sections at their upper and lower ends, ensuring stable meshing transmission. Furthermore, the shafts of the first main gear shaft 1012, the first auxiliary gear shaft 1013, the second main gear shaft 1023, and the second auxiliary gear shaft 1022 are rotatably mounted inside the first support body 101 and the second support body 102 via bearings. The diameters of the first and second gear rings are smaller than the adjacent and relative distances of the auxiliary rods, thus not affecting the rotation of the first and second gear rings.

[0025] Example 2 Based on the first embodiment, an air buffer cylinder 107 is provided on the outer side of the top plate 105 at the outer end of the first hollow screw 1011 and the second hollow screw 1024. A moving rod 1071 is movably provided in the middle of the first hollow screw 1011 and the second hollow screw 1024. The air buffer cylinder 107 controls the moving rod 1071. The lower end of the moving rod 1071 is connected to the top rod 106, and a pressure sensor 1072 is provided at the connection point. The top plate 105 at the outer end of the first hollow screw 1011 and the second hollow screw 1024... A support plate 1052 is provided on the outer side, and support columns 1053 are arranged in an array between the support plate 1052 and the top plate 105. An air buffer cylinder 107 is provided on the outer end face of the support plate 1052. The pressure range is input to the pressure sensor 1072 at the control system end. The maximum and minimum pressure limit values ​​of the air buffer cylinder 107 can be controlled by the control end. When the workpiece vibrates, the air buffer cylinder 107 can provide a certain degree of buffering through the pressure range to avoid damage to the frame or the workpiece surface.

[0026] Example 3 The front and rear ends of the center frame body 1 are provided with support boxes 108. The outer end face of the support box 108 is provided with a cylinder 1081. The support box 108 is provided with a moving brake block 1082. The brake block 1082 is located on both sides of the transmission shaft 104. The cylinder 1081 controls the connection of the brake block 1082. The inner end face of the brake block 1082 is curved. After the center frame completes the workpiece clamping, the cylinder 1081 works to clamp the transmission shaft 104 through the brake block 1082 to achieve stable restriction. The brake block 1082 is made of high friction rubber material.

[0027] Within the scope of protection. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linkage-type same-side adjustment center frame, comprising a center frame body (1), characterized in that... The upper two sides of the central frame body (1) are provided with first support bodies (101), and the lower two sides of the central frame body (1) are provided with second support bodies (102). The first support body (101) and the second support body (102) are rotatably connected by universal couplings (103) to the drive shaft (104). The upper and lower ends of the side of the first support body (101) are rotatably provided with first gear rings (1014), and the side of the first support body (101) is provided with first gear rings (1014). The first hollow screw (1011) is provided, and the inner end face of the first gear ring (1014) is threaded. The first hollow screw (1011) spirals through the first gear ring (1014). A first main gear shaft (1012) is rotatably provided on one side of the first support body (101). The first main gear shaft (1012) rotatably meshes with a first auxiliary gear shaft (1013) on one side. The first auxiliary gear shaft (1013) rotatably meshes with the first gear ring (1014). The second support body ( The second support body (102) has a second gear ring (1021) rotatably mounted at its upper and lower ends. A second auxiliary gear shaft (1022) is rotatably meshed on both sides of the second gear ring (1021). A second main gear shaft (1023) is rotatably meshed on the outer side of the second auxiliary gear shaft (1022). A second hollow screw (1024) rotatably passes through the middle of the second support body (102). The inner end face of the second gear ring (1021) is threaded, and the second hollow screw (1024) spirally passes through the second gear ring (1021). The inner end faces of the first hollow screw (1011) and the second hollow screw (1024) are movably provided with top columns. The transmission shaft (104) is coaxially connected to the first main gear shaft (1012) and the second main gear shaft (1023) through a universal coupling (103). According to the linkage type same-side adjustment center frame according to claim 1, the upper and lower ends of the first hollow screw (1011) and the second hollow screw (1024) movably pass through the center frame body (1).

2. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... The upper end face of the first main gear shaft (1012) is coaxially provided with a bit holder (10121), and the bit holder (10121) extends out of the center frame body (1) by rotation.

3. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... The inner and outer ends of the first hollow screw (1011) and the second hollow screw (1024) are provided with top plates (105), and the first hollow screw (1011) and the second hollow screw (1024) are rotatably connected to the top plates (105). The top plates (105) are movably arranged outside the central frame body (1). Auxiliary rods (1051) are arranged in an array between the top plates (105). The auxiliary rods (1051) are located on the periphery of the first hollow screw (1011) and the second hollow screw (1024).

4. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... An auxiliary wheel (1061) is provided at the end of the push rod (106) for rotation.

5. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... An air buffer cylinder (107) is provided on the outer side of the top plate (105) at the outer end of the first hollow screw (1011) and the second hollow screw (1024). A moving rod (1071) is movably provided in the middle of the first hollow screw (1011) and the second hollow screw (1024). The air buffer cylinder (107) controls the moving rod (1071). The lower end of the moving rod (1071) is connected to the top rod (106), and a pressure sensor (1072) is provided at the connection.

6. The linkage-type same-side adjustment center frame according to claim 5, characterized in that... A support plate (1052) is provided on the outer side of the top plate (105) of the first hollow screw (1011) and the second hollow screw (1024). Support columns (1053) are arranged in an array between the support plate (1052) and the top plate (105). An air buffer cylinder (107) is provided on the outer end face of the support plate (1052).

7. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... The front and rear ends of the central frame body (1) are provided with support boxes (108), the outer end face of the support box (108) is provided with a cylinder (1081), the inside of the support box (108) is provided with a brake block (1082), and the position of the brake block (1082) is located on both sides of the transmission shaft (104). The cylinder (1081) controls the connection of the brake block (1082).

8. The linkage-type same-side adjustment center frame according to claim 1, characterized in that... The inner end face of the brake block (1082) is curved.

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