Automatic clamping fixture for gear oil slinger

Abstract

The utility model discloses an automatic clamping fixture for a gear oil slinger, which solves the problem that gears with different sizes need to be equipped with different oil slingers because the existing clamping fixture for the gear oil slinger is only suitable for the gears with the same size, and specifically comprises a positioning seat, at least one group of throwing block components and a gland, the positioning seat comprises a first cylinder, a second cylinder and a third cylinder of which the outer diameters are sequentially reduced from bottom to top; an annular guide boss is arranged on the second-stage step surface around the third cylinder; the ring center of the annular guide boss is positioned on the axis of the positioning seat; the flail block assembly comprises N flail blocks, and the N flail blocks are arranged on the second-stage step surface around the same circumference of the third cylinder; n is an integer greater than or equal to 2; the peripheral surface formed by all the flail blocks is matched with the inner hole wall of the gear to be clamped; an arc-shaped guide groove matched with the annular guide boss is formed in the bottom of each flail block; and the gland is pressed on the third cylinder and the top of each flail block.

Description

Technical Field

[0001] This utility model relates to clamping fixtures, specifically to an automatic clamping fixture for a gear oil slinger. Background Technology

[0002] Gears are core transmission components in automobiles. The quality of their machining directly affects the vibration, noise, and reliability of the automobile assembly and even the whole vehicle, and sometimes becomes a key factor restricting the improvement of product level.

[0003] Cooling oil is typically used during gear manufacturing. Therefore, after gear manufacturing is complete, some cooling oil remains on the gear. This residual cooling oil can be removed using a gear oil slinger for recycling and environmental protection.

[0004] When the machined gears are installed on the gear oil slinger, they need to be clamped in order to sling oil. However, gears come in a variety of sizes, and the existing clamping fixtures are only suitable for one size of gear. This requires different oil slingers for each size of gear, which undoubtedly increases the cost of cooling oil recovery. Utility Model Content

[0005] To address the technical problem that existing gear oil slingers can only be used for gears of one size, requiring different oil slingers for each size and greatly increasing the cost of cooling oil recovery, this invention provides an automatic clamping fixture for gear oil slingers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic clamping fixture for a gear oil slinger, characterized in that it includes a positioning seat, at least one set of slingering block assemblies, and a pressure cap;

[0008] The positioning seat is a cylindrical stepped structure, comprising a first cylinder, a second cylinder, and a third cylinder whose outer diameter decreases sequentially from bottom to top; a first-level step surface is formed between the first cylinder and the second cylinder, and a second-level step surface is formed between the second cylinder and the third cylinder; an annular guide boss is provided around the third cylinder on the second-level step surface; the center of the annular guide boss is located on the axis of the positioning seat;

[0009] The throwing block assembly includes N throwing blocks, which are respectively arranged on the second-level step surface around the same circumference of the third cylinder; N≥2 and is an integer; the outer surface formed by all the throwing blocks is adapted to the inner wall of the gear to be clamped; the bottom of each throwing block is provided with an arc-shaped guide groove adapted to the annular guide boss.

[0010] The pressure cap is pressed onto the top of the third cylinder and each of the throwing blocks.

[0011] Furthermore, the number of the block-slinging components is M sets, where M≥2;

[0012] The outer diameter of the outer surface formed by all the swing blocks in each set of swing block assemblies is different, which is used to adapt to the inner wall of the gear to be clamped of different sizes.

[0013] Furthermore, the bottom of the pressure cap is provided with N downwardly protruding positioning bosses;

[0014] The N positioning protrusions are respectively embedded between two adjacent swing blocks.

[0015] Furthermore, the pressure cap is press-fitted to the top of the third cylinder and each of the throwing blocks by clamping bolts;

[0016] The third cylinder is provided with a first threaded hole along its axial direction;

[0017] The pressure cap has a through hole in the center;

[0018] The clamping bolt passes through the through hole and is connected to the first threaded hole.

[0019] Furthermore, the first cylinder is provided with multiple mounting holes for mounting the positioning seat on the oil slinger.

[0020] Furthermore, the second cylinder is provided with countersunk holes corresponding to each mounting hole.

[0021] Furthermore, N = 2.

[0022] Furthermore, the top edge of each of the throwing blocks is provided with a 60° chamfer.

[0023] Furthermore, both the first cylinder and the second cylinder have weight-reducing holes at their centers.

[0024] Furthermore, the width of the annular guide boss is 2mm;

[0025] The width of the arc-shaped guide groove is 4mm.

[0026] The beneficial effects of this utility model are:

[0027] 1. The present invention provides an automatic clamping fixture for a gear oil slinger, which uses the inner hole of the gear to be clamped as the positioning reference and adopts a split structure. When the gear to be clamped and the automatic clamping fixture rotate at high speed, the sling block moves radially to both ends of the positioning seat under centrifugal force, thereby automatically clamping the gear. Its structure is ingenious and can reliably clamp the gear to be clamped.

[0028] 2. The present invention provides an automatic clamping fixture for a gear oil slinger, which can replace the slinger blocks of different sizes according to the different sizes of the gears to be clamped, making it applicable to gears of various sizes and able to clamp gears of different sizes, thus expanding the application range of the automatic clamping fixture and greatly reducing the cost of cooling oil recovery. Attached Figure Description

[0029] Figure 1 This is a perspective view of an embodiment of an automatic clamping fixture for a gear oil slinger according to the present invention;

[0030] Figure 2 This is a cross-sectional view of an embodiment of an automatic clamping fixture for a gear oil slinger according to the present invention;

[0031] Figure 3 This is a perspective view of the positioning seat in an embodiment of this utility model;

[0032] Figure 4 This is a cross-sectional view of the positioning seat in an embodiment of this utility model;

[0033] Figure 5 This is a perspective view of the throwing block in an embodiment of this utility model;

[0034] Figure 6 This is a cross-sectional view of the throwing block in an embodiment of this utility model;

[0035] Figure 7 This is a perspective view of the cover in an embodiment of this utility model;

[0036] Figure 8 This is a cross-sectional view of the pressure cap in an embodiment of this utility model.

[0037] Icon labels:

[0038] 1-Positioning seat, 11-First cylinder, 111-Mounting hole, 12-Second cylinder, 121-Counterhead, 13-Third cylinder, 131-First threaded hole, 14-First-level stepped surface, 15-Second-level stepped surface, 16-Annular guide boss, 17-Weight reduction hole;

[0039] 2-Throwing block, 21-Arc-shaped guide groove;

[0040] 3-Gland, 31-Positioning boss, 32-Through hole;

[0041] 4- Gear to be clamped. Detailed Implementation

[0042] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] This utility model provides an automatic clamping fixture for a gear oil slinger, such as... Figure 1 and Figure 2 As shown, it includes a positioning seat 1, a throwing block assembly, and a pressure cap 3;

[0044] like Figure 3 and Figure 4 As shown, the positioning seat 1 has a cylindrical stepped structure, including a first cylinder 11, a second cylinder 12, and a third cylinder 13 whose outer diameters decrease sequentially from bottom to top. A first-level stepped surface 14 is formed between the first cylinder 11 and the second cylinder 12, and a second-level stepped surface 15 is formed between the second cylinder 12 and the third cylinder 13. For connection and fixation with external machine tools and equipment, the first cylinder 11 has multiple mounting holes 111 for mounting the positioning seat 1 on the oil slinger. The second cylinder 12 has countersunk holes 121 corresponding to each mounting hole 111. An annular guide boss 16 is provided around the third cylinder 13 on the second-level stepped surface 15. The width of the annular guide boss 16 is 2mm; the center of the annular guide boss 16 is located on the axis of the positioning seat 1. Weight-reducing holes 17 are provided at the centers of both the first cylinder 11 and the second cylinder 12.

[0045] like Figure 5 and Figure 6 As shown, the number of swing block assemblies is M, where M≥1; the specific value of M can be selected according to the size of the gear 4 to be clamped. The number of swing block assemblies is equal to the number of different sizes of gears 4 to be clamped. Each swing block assembly includes N swing blocks 2, and each swing block 2 is set on the secondary step surface 15 around the third cylinder 13; N≥1 and is a positive integer. In this embodiment, N=2 is preferred. In other embodiments, N can also take the values ​​3, 4, 5, etc. The outer surface formed by all swing blocks 2 is adapted to the inner wall of the gear 4 to be clamped; the outer diameter of the outer surface formed by all swing blocks 2 in each set of swing block assemblies is different. The bottom of each swing block 2 is provided with an arc-shaped guide groove 21 adapted to the annular guide boss 16. The groove width of the arc-shaped guide groove 21 is 4mm; the top edge of each swing block 2 is provided with a 60° chamfer.

[0046] like Figure 7 and Figure 8As shown, the pressure cap 3 is press-fitted to the top of the third cylinder 13 and each of the throwing blocks 2 by the clamping bolts 5. The bottom of the pressure cap 3 is provided with N downwardly protruding positioning bosses 31; the N positioning bosses 31 are respectively embedded between two adjacent throwing blocks 2. The third cylinder 13 is provided with a first threaded hole 131 along its axial direction; the pressure cap 3 is provided with a through hole 32 at its center; the clamping bolts 5 pass through the through hole 32 and are connected to the first threaded hole 131.

[0047] After processing is complete, turn off the motor button; the disc-shaped gear parts will then come to a standstill. Repeat the above steps to ensure effective oil removal.

[0048] Working principle: Place the gear 4 to be clamped on the positioning seat 1, start the motor of the oil slinger, and the high-speed motor drives the positioning seat 1 to rotate at high speed. This generates centrifugal force, causing the slinger block 2, under the constraint of the annular guide boss and the arc-shaped guide groove, to move radially along the positioning seat 1 to tighten the inner hole of the gear, thereby clamping the gear. The high-speed rotation of the gear causes the residual oil from gear processing to centrifugally move and be thrown off the gear for recycling, thus protecting the environment and saving processing costs. After processing is complete, turn off the motor. After the gear parts come to rest, repeat the above actions to ensure the oil slinging effect.

[0049] This disc-type gear oil slinger features a cleverly designed automatic clamping fixture, allowing for rapid changeovers. Only the slinging block 2 needs to be replaced for different gear sizes. This automatic clamping and releasing of the gears solves the problem of residual oil being slinged out from the gears on-site.

[0050] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An automatic clamping fixture for a gear oil slinger, characterized in that: Includes a positioning seat (1), at least one set of throwing block components and a pressure cap (3); The positioning seat (1) is a cylindrical stepped structure, including a first cylinder (11), a second cylinder (12), and a third cylinder (13) whose outer diameters decrease sequentially from bottom to top; a first-level step surface (14) is formed between the first cylinder (11) and the second cylinder (12), and a second-level step surface (15) is formed between the second cylinder (12) and the third cylinder (13); an annular guide boss (16) is provided on the second-level step surface (15) around the third cylinder (13); the center of the annular guide boss (16) is located on the axis of the positioning seat (1); The throwing block assembly includes N throwing blocks (2), and the N throwing blocks (2) are respectively arranged on the second-level step surface (15) around the same circumference of the third cylinder (13); N≥2 and is an integer; the outer surface formed by all the throwing blocks (2) is adapted to the inner wall of the gear (4) to be clamped; the bottom of each throwing block (2) is provided with an arc-shaped guide groove (21) adapted to the annular guide boss (16); The pressure cap (3) is pressed onto the top of the third cylinder (13) and each of the throwing blocks (2).

2. The automatic clamping fixture for a gear oil slinger according to claim 1, characterized in that: The number of the block-slinging components is M sets, where M≥2; The outer diameter of the outer surface formed by all the throwing blocks (2) in each group of throwing block assemblies is different, which is used to adapt to the inner wall of the gear (4) to be clamped of different sizes.

3. The automatic clamping fixture for a gear oil slinger according to claim 1 or 2, characterized in that: The bottom of the pressure cap (3) is provided with N downward protruding positioning bosses (31); The N positioning bosses (31) are respectively embedded between two adjacent swing blocks (2).

4. The automatic clamping fixture for a gear oil slinger according to claim 3, characterized in that: The pressure cap (3) is pressed onto the top of the third cylinder (13) and each of the throwing blocks (2) by the clamping bolts (5); The third cylinder (13) is provided with a first threaded hole (131) along its axial direction; The pressure cap (3) has a through hole (32) in the center; The clamping bolt (5) passes through the through hole (32) and is connected to the first threaded hole (131).

5. The automatic clamping fixture for a gear oil slinger according to claim 4, characterized in that: The first cylinder (11) is provided with a plurality of mounting holes (111) for mounting the positioning seat (1) on the oil slinger.

6. The automatic clamping fixture for a gear oil slinger according to claim 5, characterized in that: The second cylinder (12) is provided with countersunk holes (121) corresponding to each mounting hole (111).

7. The automatic clamping fixture for a gear oil slinger according to claim 6, characterized in that: The N=2.

8. The automatic clamping fixture for a gear oil slinger according to claim 7, characterized in that: The top edge of each of the throwing blocks (2) is provided with a 60° chamfer.

9. The automatic clamping fixture for a gear oil slinger according to claim 8, characterized in that: The first cylinder (11) and the second cylinder (12) are both provided with weight reduction holes (17) at their centers.

10. The automatic clamping fixture for a gear oil slinger according to claim 9, characterized in that: The width of the annular guide boss (16) is 2mm; The width of the arc-shaped guide groove (21) is 4 mm.

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