Clamping tool for gear shaping machining of inner helical teeth

Abstract

The utility model provides a clamping tool for inner helical tooth gear shaping processing, which relates to the technical field of inner helical tooth gear shaping processing, and comprises a workbench, a clamping mechanism and a cleaning mechanism, a pair of linear guide rails is arranged on one side of the top of the workbench, a conveying plate is arranged between the pair of linear guide rails in a sliding manner, the clamping mechanism comprises a plurality of clamping rods, and the cleaning mechanism is arranged on the clamping rods. A fixing plate is installed at the center of the top of the conveying plate, a plurality of clamping rods are arranged in the inserting blocks, clamping blocks are arranged at one ends of the clamping rods, the cleaning mechanism comprises a pair of water pipes, a supporting rod is installed on the side, away from the linear guide rail, of the top of the workbench, and the two sides of the top of the water tank are connected with the pair of water pipes through first pumps correspondingly; and one ends of the pair of water pipes penetrate through the mounting block and are provided with spray heads. The gear clamping device is simple and reasonable in structure, novel in design and easy, convenient and fast to operate, effectively clamps and fixes a workpiece gear, facilitates better cutting machining of the interior of the gear, improves production accuracy and has high practical value.

Description

Technical Field

[0001] This utility model belongs to the field of internal helical gear shaping technology, and more specifically, it relates to a clamping fixture for internal helical gear shaping. Background Technology

[0002] Internal helical gear shaping is achieved through the generating motion of the gear shaper cutter and the workpiece, along with the reciprocating cutting motion of the cutter. During shaping, the cutter performs a reciprocating cutting motion while simultaneously rolling relative to the workpiece, machining the entire tooth profile on the workpiece. In each reciprocating stroke, the cutter cuts only a small portion of the workpiece's tooth groove; the tooth surface curve is formed by the envelope of multiple cuts made by the cutting edge of the gear shaper cutter.

[0003] Based on the above, the inventors have discovered the following problems: When machining helical gears, the helical gear is usually placed in a groove, and then the gear shaper moves up and down to cut the inside of the helical gear. However, during the cutting process, the helical gear will be displaced under the action of the gear shaper, which can easily cause the tooth surface contact line of the gear to deviate, resulting in tooth profile error and affecting the subsequent transmission of the helical gear.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a clamping tool for machining internal helical gears, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a clamping fixture for machining internal helical gears, thereby addressing the issues in the background art.

[0006] The purpose and effect of this utility model of a clamping fixture for machining internal helical gears are achieved by the following specific technical means:

[0007] A clamping fixture for machining internal helical gears includes a worktable, a clamping mechanism, and a cleaning mechanism. A pair of linear guides are mounted on one side of the top of the worktable, and a conveying plate is slidably mounted between the linear guides. The clamping mechanism includes several clamping rods, and a fixing plate is mounted at the center of the top of the conveying plate. A first placement ring is provided on the top of the fixing plate, and several connecting blocks are mounted on the top of the first placement ring. A second placement ring is mounted on the top of the connecting blocks, and several inserts are hinged between the first and second placement rings. Several clamping rods are located inside the inserts, and one end of each clamping rod is provided with a clamping block. The cleaning mechanism includes a pair of water pipes, and a support rod is mounted on the top of the worktable on the side away from the linear guides. A horizontal plate is mounted on one side of the top of the support rod, and a water tank is mounted on the outer side of the worktable. Mounting blocks are mounted on both outer sides of the horizontal plate, and a pair of water pipes are connected to the top of the water tank via a first pump on both sides. One end of each pair of water pipes passes through a mounting block and is fitted with a nozzle.

[0008] Furthermore, the top of the conveyor plate is equipped with several protective plates around the fixed plate, and all of the protective plates are arc-shaped. A second cylinder is installed on one side of the top of the fixed plate, and a hinge seat is installed at the output end of the second cylinder.

[0009] Furthermore, a connector is installed on the outside of the first placement ring on the side near the hinge seat, and the connector is hinged to the hinge seat. One end of the clamping rod is hinged to the fixing plate, and an insert rod is inserted at the center of the clamping rod. The two ends of the insert rod pass through the insert block and are respectively hinged to the first placement ring and the second placement ring.

[0010] Furthermore, the conveyor plate is provided with a first mounting groove inside, and a first filter plate is installed inside the first mounting groove. The first placement ring and the second placement ring are both provided with placement grooves inside.

[0011] Furthermore, a first cylinder is installed on the top side of the horizontal plate, and the output end of the first cylinder passes through the horizontal plate and is connected to a mounting bracket. A motor is installed at the center of the mounting bracket, and the output end of the motor passes through the mounting bracket and is connected to a toothed head.

[0012] Furthermore, a pair of nozzles are located on both sides of the toothed head, and a second mounting groove is provided on the top of the worktable directly below the toothed head. Baffles are installed on both sides of the interior of the second mounting groove, and a second filter plate is installed inside the second mounting groove.

[0013] Furthermore, the workbench has a groove inside, and the groove has a water collection tank inside. The water collection tank and the second mounting groove are connected to each other, and the bottom end of the water collection tank is connected to a water collection pipe. A second pump is installed on one side of the groove, and the water collection pipe is connected to the second pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This type of clamping fixture for internal helical gear shaping, through the coordinated use of a first filter plate, a protective plate, a fixed plate, a first placement ring, a second placement ring, a insert block, a clamping rod, a clamping ring, a second cylinder, and a hinge seat, allows the gear to be placed in the placement groove during gear machining. Then, the second cylinder is activated to extend or retract, which, in conjunction with the hinge seat, drives the first placement ring to rotate. When the first placement ring rotates, it changes the angle of the clamping rod and the insert block, causing several clamping rods and clamping blocks to move closer or further apart. When the clamping ring is in contact with the outside of the workpiece, it clamps the workpiece, facilitating the cutting head to cut the inside of the gear.

[0016] 2. This type of clamping fixture for internal helical gear shaping utilizes a water tank, water pipe, mounting block, nozzle, baffle, second filter plate, groove, water collection tank, and water collection pipe in conjunction with each other. During gear cutting, a large amount of heat is generated between the gear shaping head and the gear. The first pump is activated, delivering liquid from the water tank to the nozzle to cool the gear and cutting tool. During the water spraying process, debris generated during cutting is also dissipated. Water and impurities flow through the first and second filter plates into the water collection tank. The second pump and water collection pipe then discharge wastewater outside the equipment. Several protective plates and a baffle further facilitate the flow of water and debris into the water collection tank, improving the cleanliness of the worktable. This invention features a simple and reasonable structure, novel design, and easy and convenient operation. It effectively clamps and fixes the workpiece gear, facilitating better internal gear cutting and improving production accuracy, thus possessing high practical value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of the fixing plate of this utility model.

[0019] Figure 3 This is a partial three-dimensional schematic diagram of the present invention.

[0020] Figure 4 This is a partial planar sectional view of the present invention.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1001. Workbench; 1002. Linear guide rail; 1003. Conveyor plate; 1004. Support rod; 1005. Horizontal plate; 1006. First cylinder; 1007. Mounting bracket; 1008. Motor; 1009. Gear cutter head; 2001. First filter plate; 2002. Protective plate; 2003. Fixing plate; 2004. First placement ring; 2005. Second placement ring; 2006. Connecting block; 2 007, Insert block; 2008, Clamping rod; 2009, Clamping block; 2010, Second cylinder; 2011, Hinge seat; 2012, Placement slot; 3001, Water tank; 3002, Water pipe; 3003, Mounting block; 3004, Nozzle; 3005, Baffle; 3006, Second filter plate; 3007, Groove; 3008, Water collection tank; 3009, Water collection pipe; 3010, Second pump. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] This utility model provides a clamping fixture for machining internal helical gears, including a worktable 1001, a clamping mechanism, and a cleaning mechanism. A pair of linear guide rails 1002 are mounted on one side of the top of the worktable 1001, and a conveying plate 1003 is slidably mounted between the pair of linear guide rails 1002. The clamping mechanism includes several clamping rods 2008, and a fixing plate 2003 is mounted at the top center of the conveying plate 1003. The top of the fixing plate 2003 is provided with a first placement ring 2004, and several connecting blocks 2006 are mounted on the top of the first placement ring 2004. Second placement rings 2005 are mounted on the top of the several connecting blocks 2006, and the first placement ring 2004 and the second placement ring 2005 are hinged together by several... A dry insertion block 2007 is provided, and a plurality of clamping rods 2008 are disposed inside the insertion block 2007. One end of each clamping rod 2008 is provided with a clamping block 2009. The cleaning mechanism includes a pair of water pipes 3002. A support rod 1004 is installed on the top of the workbench 1001 on the side away from the linear guide rail 1002. A horizontal plate 1005 is installed on the top side of the support rod 1004. A water tank 3001 is installed on the outer side of the workbench 1001. Mounting blocks 3003 are installed on both outer sides of the horizontal plate 1005. A pair of water pipes 3002 are connected to the top sides of the water tank 3001 through a first pump. One end of each pair of water pipes 3002 passes through the mounting block 3003 and is equipped with a nozzle 3004.

[0027] The top of the conveyor plate 1003 is equipped with several guard plates 2002 around the fixed plate 2003, and the guard plates 2002 are all arc-shaped. A second cylinder 2010 is installed on one side of the top of the fixed plate 2003, and a hinge seat 2011 is installed at the output end of the second cylinder 2010. By installing the second cylinder 2010, the first placement ring 2004 can be rotated to adjust the angle of the clamping rod 2008.

[0028] The first placement ring 2004 has a connector installed on the side near the hinge seat 2011, and the connector is hinged to the hinge seat 2011. One end of the clamping rod 2008 is hinged to the fixing plate 2003, and a plug is inserted at the center of the clamping rod 2008. The two ends of the plug pass through the plug block 2007 and are hinged to the first placement ring 2004 and the second placement ring 2005 respectively.

[0029] The conveyor plate 1003 has a first mounting groove inside, and a first filter plate 2001 is installed inside the first mounting groove. The first placement ring 2004 and the second placement ring 2005 each have a placement groove 2012 inside.

[0030] A first cylinder 1006 is installed on one side of the top of the horizontal plate 1005, and the output end of the first cylinder 1006 passes through the horizontal plate 1005 and is connected to a mounting bracket 1007. A motor 1008 is installed at the center of the mounting bracket 1007, and the output end of the motor 1008 passes through the mounting bracket 1007 and is connected to a rotating shaft. A gear head 1009 is connected to the bottom of the rotating shaft.

[0031] Among them, a pair of nozzles 3004 are located on both sides of the toothed head 1009, and the top of the workbench 1001 is provided with a second mounting groove directly below the toothed head 1009. Baffles 3005 are installed on both sides of the interior of the second mounting groove, and a second filter plate 3006 is installed inside the second mounting groove.

[0032] The workbench 1001 has a groove 3007 inside, and a water collection tank 3008 inside the groove 3007. The water collection tank 3008 is connected to the second mounting groove, and a water collection pipe 3009 is connected to the bottom of the water collection tank 3008. A second pump 3010 is installed on one side inside the groove 3007, and the water collection pipe 3009 is connected to the second pump 3010. By providing the water collection tank 3008, wastewater can be collected and discharged out of the equipment.

[0033] The specific usage and function of this embodiment are as follows:

[0034] When using this product, first, check whether the connections are secure. After ensuring they are intact, when machining the gear, place the gear in the placement groove 2012, then start the second cylinder 2010 to extend or retract it. This, in conjunction with the hinge seat 2011, drives the first placement ring 2004 to rotate. When the first placement ring 2004 rotates, it changes the angle of the clamping rods 2008 and the insert block 2007, causing the clamping rods 2008 and clamping blocks 2009 to move closer or further apart. When the clamping ring is in contact with the outside of the workpiece, it clamps the workpiece. Then, start the linear guide 1002 to move the conveyor plate 1003. The cutting process stops directly below the gear shaping head 1009. Then, the first cylinder 1006 is activated, which lowers the mounting frame 1007, allowing the gear shaping head 1009 to cut the inside of the gear. During the cutting process, a pair of nozzles 3004 spray water to cool the gear and the cutting tool. In the process of spraying water, the debris, water and impurities generated during the cutting process can be carried through the first filter plate 2001 and the second filter plate 3006 to the water collection tank 3008. The second pump 3010 and the water collection pipe 3009 discharge the wastewater out of the equipment. During the water spraying process, several protective plates 2002 and a first-degree baffle 3005 can better guide the water and debris to the water collection tank 3008, improving the cleanliness of the workbench 1001 surface.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A clamping fixture for machining internal helical gears, characterized in that: The system includes a workbench (1001), a clamping mechanism, and a cleaning mechanism. A pair of linear guide rails (1002) are mounted on one side of the top of the workbench (1001), and a conveyor plate (1003) is slidably mounted between the pair of linear guide rails (1002). The clamping mechanism includes several clamping rods (2008), and a fixing plate (2003) is mounted at the top center of the conveyor plate (1003). A first placement ring (2004) is provided on the top of the fixing plate (2003), and several connecting blocks (2006) are mounted on the top of the first placement ring (2004). A second placement ring (2005) is mounted on the top of the several connecting blocks (2006), and several inserts (2007) are hinged between the first placement ring (2004) and the second placement ring (2005). The system also includes a clamping mechanism. A holding rod (2008) is located inside the insert block (2007), and a clamping block (2009) is provided at one end of the holding rod (2008). The cleaning mechanism includes a pair of water pipes (3002), and a support rod (1004) is installed on the top of the workbench (1001) on the side away from the linear guide rail (1002). A horizontal plate (1005) is installed on one side of the top of the support rod (1004), and a water tank (3001) is installed on the outer side of the workbench (1001). Mounting blocks (3003) are installed on both outer sides of the horizontal plate (1005), and a pair of water pipes (3002) are connected to the top of the water tank (3001) through a first pump. One end of each pair of water pipes (3002) passes through the mounting block (3003) and is equipped with a nozzle (3004).

2. The clamping fixture for machining internal helical gears as described in claim 1, characterized in that: The top of the conveying plate (1003) is equipped with several guard plates (2002) around the fixed plate (2003), and the guard plates (2002) are all arc-shaped. A second cylinder (2010) is installed on one side of the top of the fixed plate (2003), and a hinge seat (2011) is installed at the output end of the second cylinder (2010).

3. The clamping fixture for machining internal helical gears as described in claim 1, characterized in that: The first placement ring (2004) has a connector installed on the side near the hinge seat (2011) on its exterior, and the connector is hinged to the hinge seat (2011). One end of the clamping rod (2008) is hinged to the fixing plate (2003), and a plug is inserted at the center of the clamping rod (2008). The two ends of the plug pass through the plug block (2007) respectively and are hinged to the first placement ring (2004) and the second placement ring (2005) respectively.

4. The clamping fixture for machining internal helical gears as described in claim 1, characterized in that: The conveyor plate (1003) has a first mounting groove inside, and a first filter plate (2001) is installed inside the first mounting groove. The first placement ring (2004) and the second placement ring (2005) both have placement grooves (2012) inside.

5. The clamping fixture for machining internal helical gears as described in claim 1, characterized in that: A first cylinder (1006) is installed on one side of the top of the horizontal plate (1005), and the output end of the first cylinder (1006) passes through the horizontal plate (1005) and is connected to a mounting bracket (1007). A motor (1008) is installed at the center of the mounting bracket (1007), and the output end of the motor (1008) passes through the mounting bracket (1007) and is connected to a rotating shaft. A toothed head (1009) is connected to the bottom of the rotating shaft.

6. The clamping fixture for machining internal helical gears as described in claim 1, characterized in that: A pair of nozzles (3004) are located on both sides of the toothed head (1009), and a second mounting groove is provided on the top of the worktable (1001) directly below the toothed head (1009). Baffles (3005) are installed on both sides of the interior of the second mounting groove, and a second filter plate (3006) is installed inside the second mounting groove.

7. The clamping fixture for machining internal helical gears as described in claim 6, characterized in that: The workbench (1001) has a groove (3007) inside, and a water collection tank (3008) is provided inside the groove (3007). The water collection tank (3008) is connected to the second mounting groove, and a water collection pipe (3009) is connected to the bottom of the water collection tank (3008). A second pump (3010) is installed on one side inside the groove (3007), and the water collection pipe (3009) is connected to the second pump (3010).

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