Clamping and positioning device for groove milling of spline shaft

Abstract

The utility model discloses a spline shaft milling groove clamping and positioning device, which relates to the technical field of spline shaft clamping, and comprises a bottom plate, a pressing block, a fixed plate and a sliding plate arranged on the bottom plate, a movable plate vertically arranged on the sliding plate, rotating cylinders arranged on the sides, close to each other, of the fixed plate and the movable plate, fixing discs are arranged on the sides, close to each other, of the two rotating cylinders, telescopic cylinders are arranged on the fixing discs in a sliding mode, the telescopic cylinders penetrate into the rotating cylinders in a sliding mode, connecting plates are arranged on the telescopic cylinders, one ends of the connecting plates penetrate into the telescopic cylinders, and pressing blocks are arranged at the ends of the connecting plates; the two telescopic cylinders get close to each other and extrude and fix the two ends of the spline shaft, the spline shaft presses the telescopic cylinders into the rotating cylinder, the rotating rod rotates and drives the two connecting plates to get close to each other, the connecting plates extrude and fix the spline shaft through the pressing blocks, rapid clamping of the spline shaft is achieved, and the stability of the spline shaft during groove milling is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of spline shaft clamping technology, specifically a spline shaft milling groove clamping and positioning device. Background Technology

[0002] A splined shaft is a type of mechanical transmission used to transmit mechanical torque. It has longitudinal keyways on its outer surface, and the rotating parts fitted on the shaft also have corresponding keyways, which can rotate synchronously with the shaft. While rotating, some of them can also slide longitudinally on the shaft, such as gearbox shift gears.

[0003] A splined shaft consists of a shaft, spline teeth, and grooves between the spline teeth. When milling the splined shaft, it is necessary to clamp and position it. Existing positioning devices are not suitable for machining splined shafts of different lengths. Fixing the splined shaft is quite troublesome, making the clamping process cumbersome and affecting the subsequent machining accuracy and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a spline shaft milling groove clamping and positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A spline shaft milling groove clamping and positioning device includes a base plate and further includes:

[0007] The pressure block has a base plate with a fixed plate and a sliding plate. A movable plate is vertically mounted on the sliding plate. A rotating cylinder is mounted on the side of the fixed plate that is close to the movable plate. A fixed plate is mounted on the side of the two rotating cylinders that are close to each other. A telescopic cylinder is slidably mounted on the fixed plate and slides into the interior of the rotating cylinder. A connecting plate is mounted on the telescopic cylinder. One end of the connecting plate passes into the interior of the telescopic cylinder and is mounted on the pressure block. A rotating rod is mounted on the fixed plate and is rotatably connected to the connecting plate. A positioning rod is mounted on the movable plate and is connected to the rotating cylinder at one end.

[0008] A positioning rod is provided with a rotating gear on its outside. A side plate is provided on the side wall of the movable plate. A positioning rod that cooperates with the rotating gear is slidably provided on the side plate. A support frame is provided at the bottom of the base plate. A guide rail is provided at the bottom of the support frame. A fixing plate is provided between the two guide rails. A sliding groove is provided on the support frame. An installation plate is provided inside the sliding groove. The installation plate is slidably provided inside the guide rail.

[0009] The sliding mechanism, connected to the movable plate, can drive the movable plate and the sliding plate to slide left and right.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] In one alternative: the sliding mechanism includes a lead screw, a drive block, and a sleeve. A connecting block is provided at the bottom of the sliding plate, a drive block is provided at the bottom of the connecting block, a sleeve is fixedly provided on the drive block, a threaded hole is provided inside the sleeve, the lead screw is provided inside the support frame, and the sleeve is sleeved on the outside of the lead screw.

[0012] In one alternative: a motor is provided on the side wall of the support frame, and the rotating end of the motor is connected to a lead screw.

[0013] In one alternative: the base plate has a guide groove inside, the connecting block is slidably disposed inside the guide groove, the guide groove has a guide rod inside, and the connecting block is slidably sleeved on the guide rod.

[0014] In one alternative: a drive motor is provided on the base plate, a drive rod is provided on the side wall of the rotating cylinder, and a transmission belt is provided between the drive rod and the drive motor.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The spline shaft milling clamping and positioning device uses a sliding mechanism to drive the movable plate and sliding plate to slide left and right. The two telescopic cylinders approach each other and press and fix the two ends of the spline shaft. The spline shaft presses the telescopic cylinder into the rotating cylinder. The rotating rod rotates and drives the two connecting plates to approach each other. The connecting plates press and fix the spline shaft through the pressure block, realizing the quick clamping of the spline shaft and ensuring the stability of the spline shaft during milling. It has the advantages of simple structure, convenient operation and stable clamping. Attached Figure Description

[0017] Figure 1 A schematic diagram of the spline shaft milling groove clamping and positioning device.

[0018] Figure 2 This is a schematic diagram of the support frame in the spline shaft milling groove clamping and positioning device.

[0019] Figure 3 This is a sectional view of the base plate in the spline shaft milling groove clamping and positioning device.

[0020] Figure 4 This is a cross-sectional view of the rotating cylinder in the spline shaft milling groove clamping and positioning device.

[0021] Figure reference numerals: 1-Base plate, 101-Guide groove, 2-Support frame, 201-Screw hole, 202-Sliding groove, 3-Mounting plate, 4-Bolt, 5-Guide rail, 6-Fixing plate, 7-Motor, 8-Sliding plate, 9-Moving plate, 10-Fixing plate, 11-Rotating cylinder, 12-Telescopic cylinder, 13-Connecting plate, 14-Rotating rod, 15-Fixing disc, 16-Pressure block, 17-Positioning rod, 18-Rotating gear, 19-Positioning rod, 20-Side plate, 21-Drive motor, 22-Drive block, 23-Sleeve, 24-Lead screw, 25-Guide rod, 26-Connecting block, 27-Drive rod, 28-Transmission belt, 29-Moving rod, 30-Spring, 31-Telescopic spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope.

[0023] In one embodiment, such as Figure 1-4 As shown, a spline shaft milling groove clamping and positioning device includes a base plate 1, and further includes:

[0024] The base plate 1 is provided with a fixed plate 10 and a sliding plate 8. A movable plate 9 is vertically provided on the sliding plate 8. A rotating cylinder 11 is rotatably provided on the side of the fixed plate 10 and the movable plate 9 that are close to each other. A fixed plate 15 is fixedly provided on the side of the two rotating cylinders 11 that are close to each other. A telescopic cylinder 12 is slidably provided at the center of the fixed plate 15. The telescopic cylinder 12 slides into the interior of the rotating cylinder 11. A telescopic spring 31 is provided between the rotating cylinder 11 and the telescopic cylinder 12. A connecting plate 13 is slidably provided on the telescopic cylinder 12. One end of the connecting plate 13 passes into the interior of the telescopic cylinder 12 and is provided with a pressure block 16. The pressure block 16 is an arc-shaped block. A rotating rod 14 is rotatably provided on the fixed plate 15. One end of the rotating rod 14 is rotatably connected to the connecting plate 13. A positioning rod 17 is rotatably provided on the movable plate 9. One end of the positioning rod 17 is fixedly connected to the rotating cylinder 11.

[0025] A positioning rod 19 is provided. A rotating gear 18 is provided on the outside of the positioning rod 17. A side plate 20 is slidably provided on the side wall of the movable plate 9. A positioning rod 19 that cooperates with the rotating gear 18 is slidably provided on the side plate 20. The positioning rod 19 is connected to the side plate 20 by a spring 30. A support frame 2 is provided at the bottom of the base plate 1. A guide rail 5 is provided at the bottom of the support frame 2. A fixing plate 6 is provided between the two guide rails 5. A screw hole 201 and a sliding groove 202 are provided on the support frame 2. An mounting plate 3 is provided inside the sliding groove 202. The mounting plate 3 is slidably provided inside the guide rail 5. The mounting plate 3 is connected to the support frame 2 and the guide rail 5 by bolts 4.

[0026] The sliding mechanism is connected to the movable plate 9 and can drive the movable plate 9 and the sliding plate 8 to slide left and right.

[0027] The spline shaft milling clamping and positioning device drives the movable plate 9 and the sliding plate 8 to slide left and right through the sliding mechanism. The sliding plate 8 drives the movable plate 9 to move closer to the fixed plate 10. The two ends of the spline shaft are placed inside the two rotating cylinders 11. The two telescopic cylinders 12 move closer to each other and press and fix the two ends of the spline shaft. The spline shaft presses the telescopic cylinders 12 into the rotating cylinders 11. The fixed plate 15 cannot move. The rotating rod 14 rotates and drives the two connecting plates 13 to move closer to each other. The connecting plates 13 press and fix the spline shaft through the pressure block 16, thus realizing the clamping of the spline shaft. The support frame 2 can slide along the guide rail 5, which facilitates the adjustment of the processing position of the spline shaft. As an embodiment, the left, right and up and down positions of the various components shown in the figure are only one arrangement. The specific positions are set according to specific needs.

[0028] In one embodiment, such as Figure 1-3 As shown, the sliding mechanism includes a lead screw 24, a drive block 22, and a sleeve 23. A connecting block 26 is fixedly installed at the bottom of the sliding plate 8, and a drive block 22 is fixedly installed at the bottom of the connecting block 26. A sleeve 23 is fixedly installed on the drive block 22, and a threaded hole is opened inside the sleeve 23. The lead screw 24 is installed inside the support frame 2, and the sleeve 23 is sleeved on the outside of the lead screw 24. The lead screw 24 rotates and drives the drive block 22 to move left and right through the sleeve 23. The drive block 22 drives the movable plate 9 to move through the connecting block 26 and the sliding plate 8.

[0029] In one embodiment, such as Figure 1-3 As shown, a motor 7 is provided on the side wall of the support frame 2. The rotating end of the motor 7 is connected to the lead screw 24, and the motor 7 drives the lead screw 24 to rotate.

[0030] In one embodiment, such as Figure 1-3As shown, the base plate 1 has a guide groove 101 inside, the connecting block 26 is slidably disposed inside the guide groove 101, the guide groove 101 has a guide rod 25 inside, and the connecting block 26 is slidably sleeved on the guide rod 25.

[0031] In one embodiment, such as Figure 1-2 As shown, a drive motor 21 is provided on the base plate 1, a drive rod 27 is provided on the side wall of the rotating cylinder 11, a movable rod 29 is provided on the rotating end of the drive motor 21, and a transmission belt 28 is provided between the movable rod 29 and the drive rod 27. The drive motor 21 drives the rotating cylinder 11 to rotate through the transmission belt 28, and the rotating cylinder 11 drives the spline shaft placed inside to rotate, which facilitates the adjustment of the processing position of the spline shaft. The positioning rod 19 blocks the rotating gear 18 upward, so that the rotating cylinder 11 cannot rotate when the spline shaft is milled, ensuring the stability of the spline shaft during processing.

[0032] The above embodiments of this utility model provide a spline shaft milling groove clamping and positioning device. The two ends of the spline shaft are respectively inserted into the telescopic cylinder 12. The motor 7 drives the lead screw 24 to rotate. The rotation of the lead screw 24 drives the drive block 22 and the movable plate 9 to move through the sleeve 23. The movable plate 9 moves closer to the fixed plate 10. The two telescopic cylinders 12 move closer to each other and squeeze and fix the two ends of the spline shaft. The spline shaft presses the telescopic cylinder 12 into the rotating cylinder 11. The fixed plate 15 cannot move. The rotating rod 14 rotates and drives the two connecting plates 13 to move closer to each other. The connecting plates 13 squeeze and fix the spline shaft through the pressure block 16, realizing the clamping of the spline shaft. The positioning rod 19 is pushed down to separate the positioning rod 19 from the rotating gear 18. The drive motor 21 drives the rotating cylinder 11 to rotate through the transmission belt 28. The rotating cylinder 11 drives the spline shaft placed inside to rotate, which facilitates the adjustment of the processing position of the spline shaft.

[0033] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A spline shaft groove milling clamping positioning device comprising a base plate, characterized in that, Also includes: The pressure block has a base plate with a fixed plate and a sliding plate. A movable plate is vertically mounted on the sliding plate. A rotating cylinder is mounted on the side of the fixed plate that is close to the movable plate. A fixed plate is mounted on the side of the two rotating cylinders that are close to each other. A telescopic cylinder is slidably mounted on the fixed plate and slides into the interior of the rotating cylinder. A connecting plate is mounted on the telescopic cylinder. One end of the connecting plate passes into the interior of the telescopic cylinder and is mounted on the pressure block. A rotating rod is mounted on the fixed plate and is rotatably connected to the connecting plate. A positioning rod is mounted on the movable plate and is connected to the rotating cylinder at one end. A positioning rod is provided with a rotating gear on its outside. A side plate is provided on the side wall of the movable plate. A positioning rod that cooperates with the rotating gear is slidably provided on the side plate. A support frame is provided at the bottom of the base plate. A guide rail is provided at the bottom of the support frame. A fixing plate is provided between the two guide rails. A sliding groove is provided on the support frame. An installation plate is provided inside the sliding groove. The installation plate is slidably provided inside the guide rail. The sliding mechanism, connected to the movable plate, can drive the movable plate and the sliding plate to slide left and right.

2. The spline shaft milling collet positioning device of claim 1, wherein, The sliding mechanism includes a lead screw, a drive block, and a sleeve. A connecting block is provided at the bottom of the sliding plate, and a drive block is provided at the bottom of the connecting block. A sleeve is fixedly provided on the drive block, and a threaded hole is opened inside the sleeve. The lead screw is provided inside the support frame, and the sleeve is sleeved on the outside of the lead screw.

3. The spline shaft milling collet positioning device of claim 2, wherein, A motor is installed on the side wall of the support frame, and the rotating end of the motor is connected to a lead screw.

4. The spline shaft milling collet positioning device of claim 2, wherein, The base plate has a guide groove inside, the connecting block is slidably disposed inside the guide groove, the guide groove has a guide rod inside, and the connecting block is slidably sleeved on the guide rod.

5. The spline shaft milling collet positioning device of claim 1, wherein, A drive motor is provided on the base plate, a drive rod is provided on the side wall of the rotating cylinder, and a transmission belt is provided between the drive rod and the drive motor.

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