Powder metallurgy positioning clamp suitable for shaft sleeve

Abstract

The utility model relates to the field of shaft sleeve positioning, and discloses a powder metallurgy positioning clamp suitable for a shaft sleeve, which comprises a workbench, the bottom of the workbench is fixedly connected with a support frame, the axis of the upper surface of the support frame is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a rotating column. A disc is fixedly connected to the upper surface of the rotating column, multiple sets of racks are fixedly connected to the outer side of the upper surface of the disc, a positioning assembly is arranged at the axis of the upper surface of the disc and comprises a positioning disc, four sets of transverse grooves are formed in the upper surface of the positioning disc, and threaded columns are connected to the right surfaces of the inner walls of the transverse grooves in a penetrating mode. According to the shaft sleeve positioning device, the multi-angle positioning effect on different types of shaft sleeves is achieved through mutual matching of the connecting relation between the positioning disc, the threaded column and other parts in the positioning assembly, the inner ring and the outer ring of the shaft sleeve are correspondingly fixed, and the positioning effect of the shaft sleeve on the positioning device is improved.

Description

Technical Field

[0001] The utility model relates to the field of shaft sleeve positioning, in particular to a powder metallurgy positioning fixture suitable for shaft sleeves. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. When processing bearings, it is often necessary to configure a positioning fixture to fix the sleeve to improve the accuracy of processing.

[0003] After searching, Chinese patent announcement number: CN206415920U discloses a CNC machining positioning fixture for a rotating shaft sleeve, including a first clamping mechanism, a second clamping mechanism and a positioning clamping mechanism. The first clamping mechanism includes: a first base, a first positioning plate, a first positioning pin, and a first locking device; the second clamping mechanism includes: a second base, a second positioning plate, a second positioning pin, and a second locking device; the positioning clamping mechanism includes: a positioning mold and a pressure plate; the top and bottom surfaces of the positioning mold are both provided with air-avoiding bosses; the side of the positioning mold is provided with at least one positioning groove and a locking hole for connecting the pressure plate. The fixture has a simple structure and a reasonable design, which ensures that the machining positioning references at both ends of the part are consistent, thereby ensuring the accuracy of the product.

[0004] The above device has the following defects: the above fixture is clamped only by the inward movement of the two side clamps, and its clamping area is small, resulting in poor stability during the clamping process. When the device processes irregularly shaped sleeves, it is impossible to make corresponding improvements to the clamping plates according to the differences in the special-shaped sleeves, which reduces the application scope of the positioning device. Therefore, a powder metallurgy positioning fixture suitable for sleeves is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a powder metallurgy positioning fixture suitable for a shaft sleeve, aiming to improve the problem in the prior art that the shaft sleeve accidentally falls off due to the small clamping area of ​​the fixture.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a powder metallurgy positioning fixture suitable for a sleeve, comprising a workbench, a support frame is fixedly connected to the bottom of the workbench, a motor is fixedly connected to the axis center of the upper surface of the support frame, a rotating column is fixedly connected to the output shaft of the motor, a disc is fixedly connected to the upper surface of the rotating column, a plurality of racks are fixedly connected to the outer side of the upper surface of the disc, a positioning assembly is arranged at the axis center of the upper surface of the disc, the positioning assembly comprises a positioning disc, four groups of transverse grooves are opened on the upper surface of the positioning disc, a threaded column is penetrated and connected to the right surface of the inner wall of the transverse groove, a gear is fixedly connected to the right end of the threaded column, a threaded block is threadedly connected to the outer wall of the threaded column, a spring is sleeved on the outer wall of the threaded column near the right side of the threaded block, a positioning column is fixedly connected to the axis center of the upper surface of the positioning disc, and a circular ring seat is fixedly connected to the lower surface of the positioning disc.

[0007] As a further description of the above technical solution:

[0008] An auxiliary component is arranged on the upper surface of the threaded block, and the auxiliary component includes an H-shaped block. A plurality of groups of circular holes are provided on the left and right sides of the upper surface of the H-shaped block. A mounting seat is detachably connected to the upper surface of the H-shaped block through fixing bolts, and a clamping plate is fixedly connected to the axis center of the upper surface of the mounting seat.

[0009] As a further description of the above technical solution:

[0010] A through groove is provided on the upper surface of the disc, and the positioning disc is slidably connected in the inner wall of the through groove of the disc via a circular ring seat.

[0011] As a further description of the above technical solution:

[0012] The tooth edges of the gear mesh with the teeth of the rack.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the threaded block is slidably connected to the inner wall of the transverse groove.

[0015] As a further description of the above technical solution:

[0016] The left end of the spring is fixedly connected to the right surface of the threaded block, and the right end of the spring is fixedly connected to the right surface of the inner wall of the transverse groove.

[0017] As a further description of the above technical solution:

[0018] The fixing bolt is detachably connected to the inner wall of the circular hole.

[0019] As a further description of the above technical solution:

[0020] The lower surface of the H-shaped block is fixedly connected to the upper surface of the threaded block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the positioning plate and the threaded column and other parts in the positioning assembly cooperate with each other through the connection relationship, so as to realize the multi-angle positioning of different types of sleeves, so that the inner ring and the outer ring of the sleeve are fixed correspondingly, and the positioning effect of the sleeve on the positioning device is improved.

[0023] 2. In the utility model, the replacement and installation of different types of clamps in the auxiliary components are realized through the mutual cooperation between the parts in the auxiliary components through the connection relationship, so that the positioning component can enhance the positioning effect of the special-shaped shaft sleeve under the action of different types of clamps, thereby improving the application range of the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional front view schematic diagram of the main body of a powder metallurgy positioning fixture suitable for a shaft sleeve proposed by the utility model;

[0025] Figure 2 This is a three-dimensional bottom view schematic diagram of the main body of a powder metallurgy positioning fixture suitable for a shaft sleeve proposed by the utility model;

[0026] Figure 3 It is a schematic diagram of a partial cross-sectional area of ​​a positioning plate of a powder metallurgy positioning fixture suitable for a shaft sleeve proposed by the utility model;

[0027] Figure 4 A schematic diagram of a disk area of ​​a powder metallurgy positioning fixture suitable for a shaft sleeve proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the H-block area of ​​a powder metallurgy positioning fixture suitable for a shaft sleeve proposed by the utility model.

[0029] Legend:

[0030] 1. Workbench; 2. Support frame; 3. Motor; 4. Rotating column; 5. Disc; 6. Rack; 7. Positioning assembly; 71. Positioning disc; 72. Horizontal groove; 73. Threaded column; 74. Threaded block; 75. Spring; 76. Gear; 77. Positioning column; 78. Ring seat; 8. Auxiliary assembly; 81. H-block; 82. Round hole; 83. Mounting seat; 84. Fixing bolt; 85. Clamp. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a powder metallurgy positioning fixture suitable for a sleeve, comprising a workbench 1, a support frame 2 is fixedly connected to the bottom of the workbench 1, and the support frame 2 supports the workbench 1 to improve the stability of the workbench 1, a motor 3 is fixedly connected to the axis center of the upper surface of the support frame 2, and the motor 3 serves as the power output of the entire device, and the output shaft of the motor 3 is fixedly connected to a rotating column 4, and a disk 5 is fixedly connected to the upper surface of the rotating column 4. A through groove is opened on the upper surface of the disk 5, and a positioning disk 71 is slidably connected to the inner wall of the through groove of the disk 5 through a circular ring seat 78. When the motor 3 is started, the rotating column 4 is driven to rotate, and the rotation of the rotating column 4 drives the disk 5 to rotate, and the through groove of the disk 5 drives the circular ring seat 78 to rotate, and multiple sets of racks 6 are fixedly connected to the outer side of the upper surface of the disk 5, and the racks 6 on the disk 5 cooperate with the gear 76 to rotate the gear 76, so that the positioning component 7 is started.

[0033] Reference Figure 2 - Figure 4A positioning assembly 7 is provided at the axis center of the upper surface of the disk 5. The positioning assembly 7 includes a positioning disk 71. The positioning disk 71 supports the positioning assembly 7. Four sets of transverse grooves 72 are provided on the upper surface of the positioning disk 71. A threaded column 73 is connected to the right surface of the inner wall of the transverse groove 72. A gear 76 is fixedly connected to the right end of the threaded column 73. The tooth edge of the gear 76 meshes with the teeth of the rack 6. A circular ring seat 78 is fixedly connected to the lower surface of the positioning disk 71. The gear 76 rotates under the action of the rack 6, driving the threaded column 73 to rotate. The outer wall of the threaded column 73 is threadedly connected with a threaded block 74. The outer wall of the threaded block 74 is slidably connected to the inner wall of the transverse groove 72. The threaded column 73 rotates through the action of the threaded block 74, so that the threaded block 74 is in the transverse groove 72. When the corresponding displacement adjustment occurs, a spring 75 is sleeved on the outer wall of the threaded column 73 near the right side of the threaded block 74. The left end of the spring 75 is fixedly connected to the right surface of the threaded block 74, and the right end of the spring 75 is fixedly connected to the right surface of the inner wall of the transverse groove 72. Through the action of the spring 75 and the threaded block 74, the threaded block 74 has an elastically adjustable positioning function. A positioning column 77 is fixedly connected to the axis center of the upper surface of the positioning plate 71. The positioning column 77 positions the inner ring of the processed sleeve, thereby enhancing the positioning function of the positioning assembly 7 on the sleeve, and cooperates with the splint 85 to achieve the adjustment and positioning function of the outer ring of the sleeve, so that the outer ring of the sleeve can clamp the sleeve around under the action of the splint 85 and the positioning column 77, thereby enhancing the positioning effect of the sleeve.

[0034] Reference Figure 3 and Figure 5 The upper surface of the threaded block 74 is provided with an auxiliary component 8, which includes an H-shaped block 81. The lower surface of the H-shaped block 81 is fixedly connected to the upper surface of the threaded block 74. The movement of the threaded block 74 toward the axis drives the H-shaped block 81 to move. A plurality of groups of circular holes 82 are provided on the left and right sides of the upper surface of the H-shaped block 81. The upper surface of the H-shaped block 81 is detachably connected to a mounting seat 83 through a fixing bolt 84. A clamping plate 85 is fixedly connected to the axis center of the upper surface of the mounting seat 83. The fixing bolt 84 is detachably connected to the inner wall of the circular hole 82. The fixing bolt 84 is used to realize the quick disassembly and installation of the mounting seat 83, so that the H-shaped block 81 can be adapted to a variety of different types of clamping plates 85, thereby enhancing the application range of the auxiliary component 8 to various clamping plates 85 and improving the practicability of the device. At the same time, by adjusting the installation of the mounting seat 83 in different circular holes 82, the fine-tuning effect of the horizontal direction of the clamp is achieved, thereby improving the stability when clamping different shaft sleeves.

[0035] Working principle: the motor 3 is started, and the disc 5 is driven to rotate through the rotating column 4, so that the rack 6 on the disc 5 drives the gear 76 to rotate, and the rotation of the gear 76 drives the threaded column 73 to rotate, so that the threaded block 74 cooperates with the spring 75 to perform a positioning and adjustment function on the sleeve on the positioning disk 71, and the movement of the threaded block 74 drives the H-block 81 to move, so that the splint 85 cooperates with the positioning column 77 to achieve a dual positioning effect on the inner and outer rings of the processed sleeve, so that the splint 85 is wrapped around the outer ring of the sleeve for fixing, thereby enhancing the positioning effect of the processed sleeve on the positioning assembly 7. At the same time, when the splint 85 needs to be replaced, the circular hole 82 on the H-block 81 and the fixing bolt 84 can be used to quickly replace the parts in the auxiliary assembly 8, and the adaptability of the sleeve positioning device to different splints 85 is improved, thereby enriching the practicality of the device.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder metallurgy positioning fixture suitable for a shaft sleeve, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a support frame (2); the upper surface of the support frame (2) is fixedly connected to a motor (3); the output shaft of the motor (3) is fixedly connected to a rotating column (4); the upper surface of the rotating column (4) is fixedly connected to a disk (5); the outer side of the upper surface of the disk (5) is fixedly connected to a plurality of racks (6); a positioning assembly (7) is arranged at the upper surface of the disk (5); the positioning assembly (7) comprises a positioning disk (71); the upper surface of the positioning disk (71) is The surface is provided with four groups of transverse grooves (72), the right surface of the inner wall of the transverse groove (72) is penetrated by a threaded column (73), the right end of the threaded column (73) is fixedly connected with a gear (76), the outer wall of the threaded column (73) is threadedly connected with a threaded block (74), the outer wall of the threaded column (73) is sleeved with a spring (75) near the right side of the threaded block (74), the upper surface of the positioning plate (71) is fixedly connected with a positioning column (77) at the axis center, and the lower surface of the positioning plate (71) is fixedly connected with a circular ring seat (78).

2. A powder metallurgy positioning fixture suitable for a shaft sleeve according to claim 1, characterized in that: An auxiliary component (8) is arranged on the upper surface of the threaded block (74), and the auxiliary component (8) comprises an H-shaped block (81). A plurality of groups of circular holes (82) are provided on the left and right sides of the upper surface of the H-shaped block (81). The upper surface of the H-shaped block (81) is detachably connected to a mounting seat (83) via fixing bolts (84), and a clamping plate (85) is fixedly connected to the axis of the upper surface of the mounting seat (83).

3. The powder metallurgy positioning fixture suitable for a sleeve according to claim 1, characterized in that: A through groove is formed on the upper surface of the disc (5), and the positioning disc (71) is slidably connected to the inner wall of the through groove of the disc (5) via a circular ring seat (78).

4. The powder metallurgy positioning fixture suitable for a sleeve according to claim 1, characterized in that: The tooth edges of the gear (76) mesh with the teeth of the rack (6).

5. The powder metallurgy positioning fixture suitable for a shaft sleeve according to claim 1, characterized in that: The outer wall of the threaded block (74) is slidably connected to the inner wall of the transverse groove (72).

6. The powder metallurgy positioning fixture suitable for a shaft sleeve according to claim 1, characterized in that: The left end of the spring (75) is fixedly connected to the right surface of the threaded block (74), and the right end of the spring (75) is fixedly connected to the right surface of the inner wall of the transverse groove (72).

7. The powder metallurgy positioning fixture suitable for a shaft sleeve according to claim 2, characterized in that: The fixing bolt (84) is detachably connected to the inner wall of the circular hole (82).

8. The powder metallurgy positioning fixture suitable for a shaft sleeve according to claim 2, characterized in that: The lower surface of the H-shaped block (81) is fixedly connected to the upper surface of the threaded block (74).

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