Protective device for spline shaft machining
By designing protective devices for spline shaft processing, including protective cartridges and spray mechanisms, the problem of tool breaking and debris injuring people when cutting ring grooves on the outer wall of spline shaft is solved, and the effect of improving operational safety is achieved.
Patent Information
- Application Number
- CN202323365232.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2033-12-11
AI Technical Summary
When cutting the ring groove on the outer wall of the spline shaft, the tool is prone to collapse, resulting in debris to cause damage to the operator.
A protective device for spline shaft processing is designed, including a frame, a protective mechanism and a spray mechanism. The protective mechanism blocks the debris from the cracker through the protective casing and the protective cover, and the spray mechanism uses refrigerant to cool down and cleans the cut debris.
It effectively blocks the debris of the crack, reduces damage to the operator, and improves the safety and efficiency of cutting operations through the use of refrigerant.
Smart Images
Figure CN222679693U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spline shaft processing, in particular to a protective device for spline shaft processing. Background Art
[0002] The spline shaft is a type of mechanical transmission. It has the same function as the flat key, semicircular key and oblique key, which is to transmit mechanical torque. There is a longitudinal keyway on the surface of the shaft, and the rotating parts on the shaft also have corresponding keyways, which can keep rotating synchronously with the shaft. While rotating, some can also slide longitudinally on the shaft, such as the gearbox shift gear.
[0003] Before performing the internal gear process of the spline shaft, a tool is required to cut an annular groove on the outer wall of the spline shaft. When the fixture on the machine tool drives the spline shaft to rotate, the tool moves along the lateral and longitudinal directions of the spline shaft circumference. If the feed rate of the tool is inconsistent with the rotation speed of the fixture, it is easy to cause tool breakage, and the fragments produced by tool breakage can easily injure the operator. For this reason, we propose a protective device for spline shaft processing. Summary of the invention
[0004] The utility model aims to solve the problem that in the prior art, when cutting the annular groove on the outer wall of the spline shaft, the cutter is prone to breakage and injury.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a protective device for spline shaft processing, which includes a frame, a protective mechanism, and a spray mechanism, a dovetail groove is opened in the middle of the top of the frame, a first vertical plate is slidably arranged in the dovetail groove, a second vertical plate and a support plate are arranged on both sides of the frame, a bearing is arranged in the support plate, a threaded rod is fixed in the inner ring of the bearing, one end of the threaded rod extends and is threadedly connected to the first vertical plate, and the other end of the threaded rod is connected to a rotating motor, and the opposite end surfaces of the first vertical plate and the second vertical plate are respectively provided with a clamping member and a ejector device, the clamping member includes a rotating cylinder and a clamp, a first sliding groove parallel to the dovetail groove is opened on the front side of the top of the frame, a movable plate is slidably arranged in the first sliding groove, a first telescopic cylinder is arranged at one end of the first sliding groove, the telescopic rod of the first telescopic cylinder is connected to the side wall of the movable plate, and the protective mechanism and the spray mechanism are arranged on the end surface of the movable plate.
[0006] As a preferred solution of the protective device for spline shaft processing described in the utility model, the protective mechanism includes a top plate arranged on the upper part of the movable plate, a protective tube is arranged at the bottom end of the top plate, a slide rail is arranged axially at the top end of the protective tube, a clamping block is arranged at the bottom of one end of the top plate away from the movable plate, a clamping slot is arranged in the clamping block, and the slide rail is slidably clamped in the clamping slot.
[0007] As a preferred solution of the protective device for spline shaft processing described in the utility model, the protective tube is provided with a long movable hole toward the side of the movable plate, the bottom end of the protective tube is provided with a long liquid outlet hole, and arc-shaped plug-in holes are provided at both ends of the protective tube toward the side wall of the movable plate, a rubber plate is movably plugged into the arc-shaped plug-in hole, one end of the rubber plate is arc-shaped, and the protective tube is located on the same axis as the clamp and the ejector device.
[0008] As a preferred solution of the protective device for spline shaft processing described in the utility model, the protective mechanism also includes a slide plate arranged at a position corresponding to the movable plate and the protective tube, the slide plate is provided with a second sliding groove, the slide plate is provided with a tool seat, the bottom end of the tool seat is slidably provided with a limit block located in the second sliding groove, the tool seat is provided with a mounting block on the end face facing the protective tube, and the mounting block is provided with a tool at a position facing the elongated movable hole.
[0009] As a preferred solution of the protective device for spline shaft processing described in the utility model, a second telescopic cylinder is provided on the side wall of the movable plate, and a telescopic rod of the second telescopic cylinder passes through the movable plate and is connected to the tool holder.
[0010] As a preferred solution of the protective device for spline shaft processing described in the utility model, wherein: the protective mechanism also includes a first protective sleeve arranged on the outer periphery of the mounting block, and a second protective sleeve is slidably sleeved on the outer periphery of the first protective sleeve.
[0011] As a preferred solution of the protective device for spline shaft processing described in the utility model, the spray mechanism includes a liquid collecting box arranged below the protective cylinder, the side wall of the liquid collecting box is fixed to the movable plate by a connecting rod, and a filter screen is arranged at the opening above the liquid collecting box.
[0012] As a preferred solution of the protective device for spline shaft processing described in the utility model, a water spray box is arranged at the top end of the protective tube, the water spray box is a hollow box body, and water spray outlets are evenly distributed at the bottom end, the side wall of the water spray box is connected with a liquid outlet pipe, the liquid outlet pipe passes through the protective tube and is connected with the output end of the water pump, the water pump is arranged at the top end of the top plate, and the input end of the water pump is connected with the bottom end of the liquid collecting box through an infusion tube.
[0013] The beneficial effects of the utility model are as follows: the utility model sleeves the protective tube on the outer wall of the spline shaft, and a part of the tool passes through the long movable hole of the protective tube to cut the spline shaft body. If the tool breaks during operation, a large amount of fragments will be blocked by the protective tube, reducing the harm to the operator. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0015] Figure 1 It is a visual diagram of a protective device for spline shaft processing.
[0016] Figure 2 This is a visual representation from another perspective of a protective device for spline shaft processing.
[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0018] Figure 4 The present invention is a structural schematic diagram of the combination of a protective mechanism and a movable plate in a protective device for spline shaft processing.
[0019] Figure 5 The present invention is a bottom view of a protective mechanism in a protective device for processing a spline shaft.
[0020] Figure 6 The present invention is a direct view of a protective mechanism for removing a first protective cover and a second protective cover in a protective device for processing a spline shaft. DETAILED DESCRIPTION
[0021] The utility model is specifically introduced below in conjunction with the accompanying drawings and embodiments.
[0022] Reference Figures 1 to 6 The present embodiment is a protection device for processing a spline shaft, comprising a frame 1, a protection mechanism 2, and a spray mechanism 3. A dovetail groove 1a is provided in the middle of the top of the frame 1, a first vertical plate 1b is slidably provided in the dovetail groove 1a, a second vertical plate 1c and a support plate 1d are provided on both sides of the frame 1, a bearing 1d-1 is provided in the support plate 1d, a threaded rod 1e is fixed in the inner ring of the bearing 1d-1, one end of the threaded rod 1e extends and is threadedly connected to the first vertical plate 1b, and the other end of the threaded rod 1e is connected to a rotating motor 1e- 1, the opposite end faces of the first vertical plate 1b and the second vertical plate 1c are respectively provided with a clamping member and a pin device 1g, the clamping member includes a rotating cylinder 1f-1 and a fixture 1f-2, a first sliding groove 1h parallel to the dovetail groove 1a is opened on the front side of the top of the frame 1, a moving plate 1i is slidably arranged in the first sliding groove 1h, a first telescopic cylinder 1j is arranged at one end of the first sliding groove 1h, the telescopic rod of the first telescopic cylinder 1j is connected to the side wall of the moving plate 1i, and a protective mechanism 2 and a spray mechanism 3 are arranged on the end face of the moving plate 1i.
[0023] One end of the spline shaft is clamped by the clamp 1f-2 on the second vertical plate 1c, and the rotating motor 1e-1 is turned on. The rotating motor 1e-1 drives the threaded rod 1e to rotate and then drives the first vertical plate 1b to move toward the second vertical plate 1c until the ejector device 1g on the first vertical plate 1b pushes against the end of the spline shaft.
[0024] In this embodiment, the protective mechanism 2 includes a top plate 2a arranged on the upper part of the movable plate 1i, a protective tube 2b is arranged at the bottom end of the top plate 2a, a slide rail 2c is arranged axially at the top end of the protective tube 2b, a clamping block 2d is arranged at the bottom of one end of the top plate 2a away from the movable plate 1i, a clamping groove is arranged in the clamping block 2d, and the slide rail 2c is slidably clamped in the clamping groove.
[0025] The spline shaft is passed through the protective tube 2b. When the movable plate 1i moves, the protective tube 2b is driven by the top plate 2a to move axially along the spline shaft. When the protective tube 2b moves to be close to the clamp 1f-2, the movable plate 1i is continued to be moved. The clamping block 2d at the bottom end of the top plate 2a on the movable plate 1i slides with the slide rail 2c, so that the tool is not hindered by the protective tube 2b itself and can process the end of the spline shaft.
[0026] In this embodiment, a long movable hole 2e is opened on the side of the protective tube 2b facing the movable plate 1i, a long liquid outlet hole 2f is opened at the bottom end of the protective tube 2b, and arc-shaped plug-in holes 2g are opened on the side walls of the movable plate 1i at both ends of the protective tube 2b. A rubber plate 2h is movably inserted in the arc-shaped plug-in hole 2g, and one end of the rubber plate 2h is arc-shaped. The protective tube 2b, the clamp 1f-2 and the ejector device 1g are located on the same axis.
[0027] The long movable hole 2e on the protective tube 2b allows the tool to slide in the long movable hole 2e without being hindered by the length of the protective tube 2b itself, thereby processing the end of the spline shaft. Inserting rubber plates 2h in the arc-shaped plug holes 2g on both sides of the protective tube 2b can prevent the tool from breaking and causing fragments to splash out from the outlets at both ends of the protective tube 2b to injure people.
[0028] In this embodiment, the protective mechanism 2 also includes a slide plate 2i arranged at a position corresponding to the movable plate 1i and the protective tube 2b, a second sliding groove 2i-1 is opened on the slide plate 2i, a tool holder 2j is arranged on the slide plate 2i, a limit block 2j-1 located in the second sliding groove 2i-1 is slidably arranged at the bottom end of the tool holder 2j, a mounting block 2j-2 is arranged on the end face of the tool holder 2j facing the protective tube 2b, and a tool 2j-3 is arranged on the mounting block 2j-2 facing the elongated movable hole 2e.
[0029] Move the tool holder 2j, and pass the tool 2j-3 on the tool holder 2j through the long movable hole 2e to cut the annular groove on the outer wall of the spline shaft.
[0030] In this embodiment, a second telescopic cylinder 2j-4 is provided on the side wall of the movable plate 1i, and the telescopic rod of the second telescopic cylinder 2j-4 passes through the movable plate 1i and is connected to the knife seat 2j.
[0031] The telescopic rod of the second telescopic cylinder 2j-4 is controlled to extend or contract, thereby pushing or pulling back the movable tool holder 2j.
[0032] In this embodiment, the protection mechanism 2 further comprises a first protective sleeve 2k arranged on the outer periphery of the mounting block 2j-2, and a second protective sleeve 2k-1 is slidably sleeved on the outer periphery of the first protective sleeve 2k.
[0033] The cutter 2j-3 may break under the action of external force, and the first protective cover 2k and the second protective cover 2k-1 can prevent the cutter 2j-3 located outside the protective tube 2b from hurting the operator.
[0034] In this embodiment, the spray mechanism 3 includes a liquid collecting box 3a disposed below the protective tube 2b, the side wall of the liquid collecting box 3a is fixed to the movable plate 1i through a connecting rod 3b, and a filter screen 3c is disposed at the opening above the liquid collecting box 3a.
[0035] The liquid collecting box 3a is used to contain the refrigerant. The refrigerant flowing out of the long strip liquid outlet 2f at the bottom of the protective tube 2b enters the liquid collecting box 3a for recycling after filtering debris through the filter screen 3c.
[0036] In this embodiment, a water spray box 3d is arranged at the top of the interior of the protective tube 2b. The water spray box 3d is a hollow box body, and water spray outlets are evenly distributed at the bottom. The side wall of the water spray box 3d is connected with a liquid outlet pipe 3e. The liquid outlet pipe 3e passes through the protective tube 2b and is connected with the output end of the water pump 3f. The water pump 3f is arranged at the top of the top plate 2a, and the input end of the water pump 3f is connected with the bottom end of the liquid collecting box 3a through the infusion tube 3g.
[0037] The refrigerant in the liquid collecting box 3a, under the action of the water pump 3f, passes through the liquid infusion pipe 3g and the liquid outlet pipe 3e and finally enters the water spray box 3d to cool the spline shaft and tool 2j-3 in the cutting operation. At the same time, the refrigerant can take away the chips cut from the surface of the spline shaft.
[0038] Working principle: one end of the spline shaft is clamped by the clamp 1f-2 on the second vertical plate 1c, and then the spline shaft is passed through the protective tube 2b, and the rotating motor 1e-1 is turned on. The rotating motor 1e-1 drives the threaded rod 1e to rotate and then drives the first vertical plate 1b to move toward the second vertical plate 1c until the ejector device 1g on the first vertical plate 1b presses against the end of the spline shaft, and the telescopic rod of the first telescopic cylinder 1j is controlled to extend or contract, so that the movable plate 1i is located at the approximate position where the spline shaft needs to be cut, and the telescopic rod of the second telescopic cylinder 2j-4 is controlled to extend and then push the tool holder 2j, and the tool 2j-3 on the tool holder 2j is passed through the long movable hole 2e. When the tool holder 2j moves toward the spline shaft, one end of the second protective sleeve 2k-1 abuts against the protective tube 2b. As the tool holder 2j continues to approach, the second protective sleeve 2k-1 slides on the outer wall of the first protective sleeve 2k until the tool 2j-3 abuts against the surface of the spline shaft that needs to be cut, and the rotating cylinder 1f-1 is turned on. The spline shaft is rotated, and at the same time, the telescopic rod of the second telescopic cylinder 2j-4 is controlled to continue to extend to the set position, and the telescopic rod of the first telescopic cylinder 1j is controlled to extend or contract, so that the tool 2j-3 is cut along the axial and radial directions of the spline shaft, and the water pump 3f is turned on. Under the action of the water pump 3f, the refrigerant in the liquid collecting box 3a passes through the infusion tube 3g and the liquid outlet tube 3e and finally enters the water spray box 3d to cool the spline shaft and the tool 2j-3 in the cutting operation. At the same time, the refrigerant can take away the cut debris on the surface of the spline shaft. The refrigerant flowing out of the long strip liquid outlet hole 2f at the bottom of the protective tube 2b enters the liquid collecting box 3a for recycling after filtering the debris through the filter net 3c. If the tool 2j-3 breaks during operation, the blade is mostly blocked by the protective tube 2b, the first protective cover 2k and the second protective cover 2k-1, and the openings at both ends of the protective tube 2b can also be blocked by the rubber plate 2h, which greatly reduces the probability of the tool breaking and injuring people.
[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A protective device for spline shaft processing, characterized in that: The invention comprises a frame (1), a protection mechanism (2), and a spray mechanism (3); a dovetail groove (1a) is provided in the middle of the top of the frame (1); a first vertical plate (1b) is slidably arranged in the dovetail groove (1a); a second vertical plate (1c) and a support plate (1d) are arranged on both sides of the frame (1); a bearing (1d-1) is arranged in the support plate (1d); a threaded rod (1e) is fixed in the inner ring of the bearing (1d-1); one end of the threaded rod (1e) extends and is threadedly connected to the first vertical plate (1b); the other end of the threaded rod (1e) is connected to a rotating motor (1e-1); the first vertical plate (1b) is provided with a second vertical plate (1c) and a support plate (1d); a bearing (1d-1) is provided in the support plate (1d); a threaded rod (1e) is fixed in the inner ring of the bearing (1d-1); one end of the threaded rod (1e) extends and is threadedly connected to the first vertical plate (1b); the other end of the threaded rod (1e) is connected to a rotating motor (1e-1); ) and the end faces opposite to the second vertical plate (1c) are respectively provided with a clamping member and a pin device (1g), the clamping member comprises a rotating cylinder (1f-1) and a clamp (1f-2), a first sliding groove (1h) parallel to the dovetail groove (1a) is opened on the front side of the top of the frame (1), a movable plate (1i) is slidably arranged in the first sliding groove (1h), a first telescopic cylinder (1j) is arranged at one end of the first sliding groove (1h), the telescopic rod of the first telescopic cylinder (1j) is connected to the side wall of the movable plate (1i), and the protective mechanism (2) and the spray mechanism (3) are arranged on the end face of the movable plate (1i).
2. A protective device for processing a spline shaft according to claim 1, characterized in that: The protective mechanism (2) comprises a top plate (2a) arranged on the upper part of the movable plate (1i), a protective tube (2b) being arranged at the bottom end of the top plate (2a), a slide rail (2c) being arranged axially at the top end of the protective tube (2b), a clamping block (2d) being arranged at the bottom of one end of the top plate (2a) away from the movable plate (1i), a clamping slot being arranged in the clamping block (2d), and the slide rail (2c) being slidably clamped in the clamping slot.
3. A protective device for processing a spline shaft as claimed in claim 2, characterized in that: The protective tube (2b) is provided with a long strip movable hole (2e) on the side facing the movable plate (1i), the bottom end of the protective tube (2b) is provided with a long strip liquid outlet hole (2f), both ends of the protective tube (2b) are provided with arc-shaped plug holes (2g) on the side wall facing the movable plate (1i), a rubber plate (2h) is movably plugged into the arc-shaped plug hole (2g), one end of the rubber plate (2h) is arc-shaped, and the protective tube (2b) is located on the same axis as the clamp (1f-2) and the ejector device (1g).
4. A protective device for processing a spline shaft as claimed in claim 3, characterized in that: The protection mechanism (2) also includes a slide plate (2i) arranged at a position corresponding to the movable plate (1i) and the protection tube (2b), the slide plate (2i) being provided with a second sliding groove (2i-1), the slide plate (2i) being provided with a knife seat (2j), a limit block (2j-1) located in the second sliding groove (2i-1) being slidably provided at the bottom end of the knife seat (2j), a mounting block (2j-2) being provided on the end surface of the knife seat (2j) facing the protection tube (2b), and a knife (2j-3) being provided on the mounting block (2j-2) facing the long strip movable hole (2e).
5. A protective device for processing a spline shaft as claimed in claim 4, characterized in that: A second telescopic cylinder (2j-4) is provided on the side wall of the movable plate (1i); a telescopic rod of the second telescopic cylinder (2j-4) passes through the movable plate (1i) and is connected to the knife seat (2j).
6. A protective device for processing a spline shaft as claimed in claim 5, characterized in that: The protection mechanism (2) further comprises a first protection sleeve (2k) arranged on the outer periphery of the mounting block (2j-2), and a second protection sleeve (2k-1) is slidably sleeved on the outer periphery of the first protection sleeve (2k).
7. A protective device for processing a spline shaft as claimed in claim 6, characterized in that: The spray mechanism (3) comprises a liquid collecting box (3a) arranged below the protective tube (2b); a side wall of the liquid collecting box (3a) is fixed to the movable plate (1i) via a connecting rod (3b); and a filter screen (3c) is arranged at an opening above the liquid collecting box (3a).
8. A protective device for processing a spline shaft as claimed in claim 7, characterized in that: A water spray box (3d) is arranged at the top of the protective tube (2b). The water spray box (3d) is a hollow box body and has water spray outlets evenly distributed at the bottom. A liquid outlet pipe (3e) is connected to the side wall of the water spray box (3d). The liquid outlet pipe (3e) passes through the protective tube (2b) and is connected to the output end of a water pump (3f). The water pump (3f) is arranged at the top of the top plate (2a). The input end of the water pump (3f) is connected to the bottom end of the liquid collection box (3a) through a liquid infusion pipe (3g).