Bevel gear machining tool clamp for numerical control equipment

Abstract

The utility model belongs to the technical field of gear machining, and particularly relates to a bevel gear machining tool clamp for numerical control equipment, which comprises a clamping mechanism, a clamping mechanism and a clamping mechanism, wherein the upper clamping block and the lower clamping block are suitable for clamping a bevel gear after being attached; the driving mechanism is arranged on the machining table, connected with the upper clamping block and the lower clamping block and suitable for driving the upper clamping block and the lower clamping block to be attached to each other to clamp the bevel gear during starting so as to limit rotation of the bevel gear. According to the bevel gear clamping device, the driving mechanism is arranged and connected with the clamping mechanism, the clamping mechanism is driven to clamp the bevel gear, and after the bevel gear is clamped, the bevel gear is clamped, and circumferential rotation of the bevel gear is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear processing, and particularly relates to a fixture for machining bevel gears used in numerical control equipment. Background Art

[0002] A gear is a toothed mechanical part that can mesh with each other. Gears are classified into shaft types and disk types according to the shape of the gear blank. When machining disk types, a chuck is usually used for positioning. When machining existing gears, different angles around the periphery need to be machined.

[0003] In the prior art, when clamping and machining a bevel gear, the gear is fixed between multiple rollers. Therefore, during the machining process of the gear, the rollers are prone to rotate, which easily leads to displacement of the gear during machining and deviation of the position, and the gear cannot be well fixed during gear machining. Therefore, the accuracy and machining effect during gear machining are reduced.

[0004] Therefore, a fixture for machining bevel gears used in numerical control equipment is designed to solve the technical problem that the gear rotates during the machining of the periphery of the gear in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fixture for machining bevel gears used in numerical control equipment to solve the above technical problems.

[0006] To solve the above technical problems, the utility model provides a fixture for machining bevel gears used in numerical control equipment, including: a clamping mechanism, which includes an upper clamping block and a lower clamping block; wherein

[0007] The upper clamping block and the lower clamping block are adapted to clamp the bevel gear after being fitted together;

[0008] A driving mechanism is arranged on the machining table and is connected to the upper clamping block and the lower clamping block, and is adapted to drive the upper clamping block and the lower clamping block to fit together to clamp the bevel gear when starting, thereby restricting the rotation of the bevel gear.

[0009] Further, a rotation limiting mechanism is arranged on the upper clamping block, which includes:

[0010] A collar sleeved on the outer wall of the upper clamping block; wherein

[0011] A plurality of positioning holes are evenly formed on the inner wall of the collar; and

[0012] A positioning component is arranged on the upper end surface of the upper clamping block and is connected to the positioning holes.

[0013] Further, a tooth limit member is arranged on the lower end surface of the collar.

[0014] Further, the positioning component includes:

[0015] A telescopic rod slidably connected to the upper end face of the upper clamping block; wherein

[0016] One end of the telescopic rod is adapted to the positioning hole; and

[0017] A limiting block is arranged on the upper end face of the upper clamping block and is connected to the other end of the telescopic rod;

[0018] A first return spring, one end of which is connected to the telescopic rod and the other end is connected to the limiting block.

[0019] Furthermore, a guiding block is arranged on the upper end face of the upper clamping block; wherein

[0020] The positioning rod penetrates through the guiding rod and is slidably connected to the guiding block; and

[0021] A moving member is slidably connected to the guiding block;

[0022] A triggering member is arranged on the outer wall of the telescopic rod; wherein

[0023] The moving member fits with the triggering member.

[0024] Furthermore, a horizontal limiting mechanism is arranged on the lower clamping block, which includes:

[0025] A horizontal limiting member, slidably connected to the upper end face of the lower clamping block; and

[0026] A fixed cylinder is arranged on the upper end face of the lower clamping block; wherein

[0027] A moving rod penetrates through the fixed cylinder; and

[0028] One end of the moving rod is connected to the inner wall of the horizontal limiting member.

[0029] Furthermore, a second return spring is sleeved on the outer side of the other end of the moving rod; wherein

[0030] One end of the second return spring is connected to the inner wall of the fixed cylinder and the other end is connected to the moving rod; and

[0031] A triggering member is arranged on the lower end face of the upper clamping block, and the triggering member is slidably connected to the other end of the moving rod.

[0032] Furthermore, the driving mechanism includes: a motor connected to the processing table; wherein

[0033] The outer side of the output end of the motor is connected with a lower runner; and

[0034] An upper runner, which is connected to the processing table by bearings, and the upper runner meshes with the lower runner.

[0035] Further, an upper clamping rod is connected to the outer side of the upper rotating wheel through a bearing; among which

[0036] One end of the upper clamping rod is connected to the upper end surface of the upper clamping block; and

[0037] A lower clamping rod is connected to the outer side of the lower rotating wheel through a bearing; among which

[0038] One end of the lower clamping rod is connected to the lower end surface of the lower clamping block.

[0039] Further, deflection rods are arranged on both the upper clamping rod and the lower clamping rod; among which

[0040] One end of each deflection rod is connected to the processing table.

[0041] The beneficial effect of the present utility model is that by providing a driving mechanism and connecting it with the clamping mechanism, the driving mechanism drives the clamping mechanism to clamp the bevel gear, and after clamping the bevel gear, it holds the bevel gear to prevent its circumferential rotation.

[0042] Other features and advantages of the present utility model will be described in the following specification, and some of them will become obvious from the specification or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0043] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specifically provides preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Description of the Drawings

[0044] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 is the overall front three-dimensional structure schematic diagram of the present utility model;

[0046] Figure 2 is the cross-sectional structure schematic diagram of the clamping mechanism of the present utility model;

[0047] Figure 3 is the Figure 2 enlarged structure schematic diagram of part A in the present utility model;

[0048] Figure 4It is a schematic diagram of the overall sectional structure of the present utility model;

[0049] Figure 5 is the Figure 4 schematic enlarged structure diagram of part B in the present utility model.

[0050] In the figure:

[0051] 1. Driving mechanism; 10. Motor; 11. Lower runner; 110. Lower clamping rod; 12. Upper runner; 120. Upper clamping rod; 13. Deflection rod;

[0052] 2. Clamping mechanism; 20. Upper clamping block; 200. Trigger; 201. Collar; 202. Positioning hole; 203. Tooth limit member; 21. Lower clamping block; 210. Horizontal limit member; 211. Slide block; 212. Fixed cylinder; 213. Moving rod; 214. Second return spring; 215. Chute;

[0053] 3. Positioning assembly; 30. Expansion rod; 31. Limit block; 32. First return spring; 33. Guide block; 34. Moving member; 35. Trigger;

[0054] 4. Bevel gear;

[0055] 5. Processing table. Specific embodiments

[0056] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0057] In the prior art, when clamping and processing a bevel gear, the gear is fixed between multiple rollers. Therefore, during the gear processing, the rollers are likely to rotate, which easily leads to the displacement of the gear during processing and deviation of the position, and the gear cannot be well fixed during gear processing. Therefore, the precision and processing effect during gear processing are reduced.

[0058] To solve the above technical problems, in at least one embodiment, a fixture for machining bevel gears for a numerical control device is provided, including: a clamping mechanism 2, which includes an upper clamping block 20 and a lower clamping block 21; wherein the upper clamping block 20 and the lower clamping block 21 are adapted to clamp the bevel gear 4 after being fitted together; a driving mechanism, which is arranged on the processing table 5, connected to the upper clamping block 20 and the lower clamping block 21, and is adapted to drive the upper clamping block 20 and the lower clamping block 21 to fit together to clamp the bevel gear 4 when starting, thereby restricting the rotation of the bevel gear 4;

[0059] By providing a driving mechanism, connecting it to the clamping mechanism, driving the clamping mechanism to clamp the bevel gear, and after clamping the bevel gear, jamming the bevel gear to restrict its circumferential rotation.

[0060] In some embodiments, before machining the bevel gear 4, place it on the upper end face of the lower clamping block 21. At this time, the horizontal limiting member 210 passes through the central hollow hole groove of the bevel gear 4, and start the motor 10. The output end thereof drives the lower runner 11 to rotate. From Figure 1 it can be seen that both the outer walls of the lower runner 11 and the upper runner 12 are provided with teeth so that they mesh with each other. Therefore, when the lower runner 11 rotates, it drives the upper runner 12 to rotate. The upper runner 12 drives the upper clamping rod 120 connected to it by a bearing to deflect. At the same time, the lower runner 11 drives the lower clamping rod 110 connected to it by a bearing to deflect. The deflection directions of the upper and lower clamping rods are restricted by the deflection rod 13, so that the upper clamping block 20 and the lower clamping block 21 approach each other until the bevel gear 4 is clamped (the upper end face of the upper clamping block 20 is connected to the upper clamping rod 120 by a bearing, and the lower end face of the lower clamping block 21 is connected to the lower clamping rod 110 by a bearing).

[0061] In some embodiments, when the upper clamping block 20 and the lower clamping block 21 approach each other, the trigger member 200 fixed to the lower end face of the upper clamping block 20 approaches the lower clamping block 21 until it is inserted into the fixed cylinder 212. From Figure 3 it can be seen that as the trigger member 200 continues to move (the cross-section of the trigger member 200 is preferably an inverted trapezoid), when it contacts the end of the moving rod 213 located inside the fixed cylinder 212, the trigger member 200 pushes the moving rod 213 to move. At this time, the second return spring 214 is compressed. The moving rod 213 drives the horizontal limiting member 210 to move until the horizontal limiting member 210 contacts the inner wall of the central hollow part of the bevel gear. The horizontal limiting member 210, the moving rod 213 and the second return spring 214 are a group, and several groups can be provided on the fixed cylinder 212. By several horizontal limiting members 210 contacting the inner wall of the central hollow part of the bevel gear, the bevel gear is fixed on the upper surface of the lower clamping block 21 to prevent it from having a horizontal displacement during the machining process.

[0062] In some embodiments, during the process of the upper clamping block 20 approaching the lower clamping block 21 to clamp the bevel gear 4, the bottom ends of several tooth limit members 203 fixed to the lower end surface of the collar 201 are inserted into the tooth gaps of the bevel gear. By inserting one end of the telescopic rod 30 into the positioning hole 202 to limit the collar 201 and the tooth limit members 203, the rotation of the gear 4 during processing can be avoided. For bevel gears 4 with different tooth gaps, the moving member 34 can be manually pressed, causing the moving member 34 to slide downward on the guide block 33. From Figure 5 it can be seen that when the inclined surface of the moving member 34 moves to contact one end of the trigger member 35, the trigger member 35 is pushed to move. The trigger member 35 drives the telescopic rod 30 to retract. At this time, the first return spring 32 is compressed, and one end of the telescopic rod 30 disengages from the positioning hole 202. The collar 201 can rotate freely, and the tooth limit members 203 are rotated to be snapped into the tooth gaps of the bevel gear 4. Then, the moving member 34 is released to reset it (the reset mechanism between the moving member 34 and the guide block 33 can be realized by existing technologies). At this time, the first return spring 32 rebounds, pushing one end of the telescopic rod 30 to re-insert into the positioning hole 202 to fix the collar 201. In this way, for bevel gears with different tooth gaps

[0063] In summary, by providing a driving mechanism, connecting it to the clamping mechanism, driving the clamping mechanism to clamp the bevel gear, and after clamping the bevel gear, clamping the bevel gear to prevent its circumferential rotation.

[0064] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0065] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0066] Inspired by the above-described ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cone gear processing fixture for a numerical control device, characterized in that, Comprising: A clamping mechanism, which includes an upper clamping block and a lower clamping block; Wherein The upper clamping block and the lower clamping block are adapted to clamp the bevel gear after being fitted together; A driving mechanism, which is arranged on the processing table, is connected to the upper clamping block and the lower clamping block, and is adapted to drive the upper clamping block and the lower clamping block to fit together to clamp the bevel gear when starting, thereby restricting the rotation of the bevel gear.

2. The bevel gear processing tooling fixture according to claim 1, wherein A rotation limiting mechanism is arranged on the upper clamping block, and it includes: A collar sleeved on the outer wall of the upper clamping block; wherein A plurality of positioning holes are evenly formed on the inner wall of the collar; and A positioning component, which is arranged on the upper end surface of the upper clamping block and is connected to the positioning holes.

3. The bevel gear processing tooling fixture according to claim 2, wherein A tooth limiting member is arranged on the lower end surface of the collar.

4. The bevel gear processing tooling fixture according to claim 3, wherein The positioning component includes: A telescopic rod slidably connected to the upper end surface of the upper clamping block; wherein One end of the telescopic rod is adapted to the positioning hole; and A limiting block, which is arranged on the upper end surface of the upper clamping block and is connected to the other end of the telescopic rod; A first return spring, one end of which is connected to the telescopic rod and the other end is connected to the limiting block.

5. The bevel gear processing tooling fixture according to claim 4, wherein A guiding block is arranged on the upper end surface of the upper clamping block; wherein The telescopic rod penetrates through the guiding block and is slidably connected to the guiding block; and A moving member is slidably connected to the guiding block; A triggering member is arranged on the outer wall of the telescopic rod; wherein The moving member is fitted with the triggering member.

6. The bevel gear processing tooling fixture according to claim 5, wherein A horizontal limiting mechanism is arranged on the lower clamping block, and it includes: A horizontal limiting member, which is slidably connected to the upper end surface of the lower clamping block; and A fixed cylinder, which is arranged on the upper end surface of the lower clamping block; wherein A moving rod penetrates through the fixed cylinder; and One end of the moving rod is connected to the inner wall of the horizontal limiting member.

7. The bevel gear processing tooling fixture according to claim 6, wherein A second return spring is sleeved on the outer side of the other end of the moving rod; wherein One end of the second return spring is connected to the inner wall of the fixed cylinder and the other end is connected to the moving rod; and A triggering member is arranged on the lower end surface of the upper clamping block, and the triggering member is slidably connected to the other end of the moving rod.

8. The bevel gear processing tooling fixture according to claim 7, wherein The driving mechanism includes: a motor connected to the processing table; wherein A lower runner is connected to the outer side of the output end of the motor; and An upper runner, which is connected to the processing table by a bearing, and the upper runner meshes with the lower runner.

9. The bevel gear processing tooling fixture according to claim 8, wherein An upper clamping rod is connected to the outer side of the upper runner by a bearing; wherein One end of the upper clamping rod is connected to the upper end surface of the upper clamping block; and A lower clamping rod is connected to the outer side of the lower runner by a bearing; wherein One end of the lower clamping rod is connected to the lower end surface of the lower clamping block.

10. The conical gear processing tooling fixture according to claim 9, characterized in that deflection rods are arranged on both the upper clamping rod and the lower clamping rod; wherein one end of each of the deflection rods is connected to the processing table.

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