Bushing press-fitting tool with guiding and limiting functions

Abstract

The invention discloses a bushing press-fitting tool with guiding and limiting functions, and relates to the technical field of mechanical assembly, the bushing press-fitting tool comprises a bottom plate, a first fixing groove is formed in the inner wall of the bottom plate, the bushing press-fitting tool is characterized in that a press-fitting mechanism is arranged in the bottom plate, and a limiting mechanism is arranged on the front face of the bottom plate; the press-fitting mechanism comprises a bushing workpiece, a bottom support is slidably connected to the inner wall of the bushing workpiece, a fourth fixing groove is formed in the inner wall of the bottom support, and a guide column is slidably connected to the inner wall of the fourth fixing groove. After a lining workpiece is placed on the top of the bottom plate, the lining is placed on the bottom support, then the press-fitting guide pin is inserted, the press-fitting guide pin moves to drive the guide column to move along the inner wall of the lining until the guide column is inserted into the fourth fixing groove formed in the inner wall of the bottom support, and at the moment, the lining is extruded through the third fixing groove to be fixed; and the bushing is firmly fixed in the vertical direction by the guide post and the bottom support.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical assembly, and in particular relates to a bushing press-fitting tool with a guide limiter. Background Art

[0002] In mechanical assembly, bushings are common parts and are widely used in various mechanical equipment to improve the fitting accuracy and wear resistance of parts. The bushing press-fitting process usually requires high-precision operations to ensure that the bushing can fit correctly and have ideal performance after installation.

[0003] In order to ensure that no deflection, deformation or damage occurs during the press-fitting process, the design of the press-fitting tool is particularly important. At present, the press-fitting of the bushing in the workpiece is inconvenient to operate and has low production efficiency. The press-fitting is uneven, not in place, easy to tilt, the surface fit is not close, and the outer surface of the bushing is easily scratched, affecting the assembly quality. For this reason, we proposed a bushing press-fitting tool with guide limit. Utility Model Content

[0004] The purpose of the invention is to provide a bushing pressing tool with a guide limit, which fixes the bushing by squeezing it through a fixing groove, and the guide column and the base support firmly fix the bushing in the vertical direction. Finally, the press acts on the pressing guide pin to move the pressing guide pin downward, driving the bushing and the base support to move downward until the bushing is pressed into the workpiece, thereby solving the problems of the current bushing pressing in the workpiece, inconvenient operation, low production efficiency, uneven pressing, out of position, easy tilting, loose surface fitting, and easy scratches on the outer surface of the bushing, which affects the assembly quality.

[0005] In order to solve the above technical problems, the invention is implemented through the following technical solutions:

[0006] The invention is a bushing press-fitting tool with guide limit, comprising a bottom plate, a fixing groove 1 is opened on the inner wall of the bottom plate, a press-fitting mechanism is arranged inside the bottom plate, and a limit mechanism is arranged on the front side of the bottom plate;

[0007] The press-fitting mechanism includes a bushing workpiece, the inner wall of the bushing workpiece is slidably connected to a base, the inner wall of the base is provided with a fixing groove four, the inner wall of the fixing groove four is slidably connected to a guide column, the inner wall of the guide column is fixedly connected to a fixing block, the outer wall of the fixing block is fixedly connected to a press-fitting guide pin, the inner wall of the press-fitting guide pin is provided with a fixing groove three, the inner wall of the fixing groove three is rotatably connected to a bushing, the fixing groove is used to ensure that the guide column remains vertical, thereby ensuring that the bushing remains vertical.

[0008] Furthermore, the bottom of the bushing workpiece is fixedly connected to the top of the base plate, the outer surface of the base support is slidably connected to the inner wall of the base plate, and the outer surface of the guide column is slidably connected to the inner wall of the bushing, so that the bushing workpiece is supported and fixed by the base plate.

[0009] Furthermore, the outer surface of the base support is slidably connected to the inner wall of the bottom plate, a fixing groove 2 is provided on the inner wall of the base support, a return spring is fixedly connected to the inner wall of the fixing groove 2, and one end of the return spring away from the fixing groove 2 is fixedly connected to the inner wall of the fixing groove 1, so that the base support can be reset after being pressed into place through the return spring.

[0010] Furthermore, the limiting mechanism includes a motor fixedly connected to the top of the base plate, and the output shaft at the bottom of the motor is fixedly connected to a worm through a coupling, and the worm is driven to rotate by the motor.

[0011] Furthermore, the outer surface of the worm is rotatably connected to a support block, and the bottom of the support block is fixedly connected to a support block 1, so that the worm is supported by the support block.

[0012] Furthermore, a threaded rod is rotatably connected to an inner wall of the support block, a worm wheel is fixedly connected to the top of the threaded rod, the worm wheel is meshed with one end of the worm that is close to each other, and the rotation of the worm drives the worm wheel to rotate.

[0013] Furthermore, a moving block is rotatably connected to the outer surface of the threaded rod, and two moving blocks are provided in total. A fixed plate is fixedly connected to one end of the moving blocks that are close to each other, and the moving blocks are moved by the rotation of the threaded rod.

[0014] Furthermore, the inner wall of the moving block away from the threaded rod is slidably connected to a sliding rod, the outer surface of the sliding rod is fixedly connected to a supporting block 2, the outer wall of the supporting block 2 is fixedly connected to the outer wall of the bottom plate, and the moving path of the fixed plate is controlled by the sliding rod.

[0015] Furthermore, the outer wall of the fixed plate is fixedly connected with a bottom ring, the top of the bottom ring is fixedly connected with a support column, a total of several support columns are provided, the outer surface of the support column is slidably connected to the inner wall of the bottom plate, and the support column is supported and fixed by the bottom ring.

[0016] Furthermore, a limiting ring is fixedly connected to the top of the support column, and a protective sheet is fixedly connected to the top of the limiting ring, so that the limiting ring is moved by the movement of the support column.

[0017] The invention has the following beneficial effects:

[0018] 1. The invention provides a press-fitting mechanism. When the bushing needs to be press-fitted to the appropriate position of the workpiece, the bushing workpiece is placed on the top of the bottom plate and then on the bottom bracket. The press-fitting guide pin is inserted. The movement of the press-fitting guide pin drives the guide column to move along the inner wall of the bushing until the guide column is inserted into the fixing groove four provided on the inner wall of the bottom bracket. At this time, the bushing is squeezed through the fixing groove three to fix it. The guide column and the bottom bracket firmly fix the bushing in the vertical direction. Finally, the press acts on the press-fitting guide pin to move the press-fitting guide pin downward, driving the bushing and the bottom bracket to move downward until the bushing is pressed into the workpiece. The whole process can ensure that the bushing is vertical and not tilted, and always maintains the correct installation direction, so as to avoid the bushing tilting and causing scratches on the outer surface during the press-fitting process, thereby improving the assembly quality.

[0019] 2. The invention sets a limit mechanism. When facing workpieces with different press-fitting depths, the motor can be driven. The rotation of the motor drives the worm to rotate, thereby driving the worm wheel to rotate, and then driving the threaded rod to rotate. The rotation of the threaded rod will drive the fixed plate to move up and down, thereby driving the bottom ring and the support column to move. When the support column moves, it will drive the limit ring to move up and down, thereby controlling the movement distance of the bottom support, achieving the control of the press-fitting depth, ensuring that the bushing can reach the same press-fitting depth during each press-fitting process, and avoiding over-deep or incomplete installation.

[0020] Of course, any product implementing the invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the invention;

[0023] Figure 2 The back structure diagram of the bottom plate of the invention is shown in FIG.

[0024] Figure 3 The front cross-sectional structural diagram of the base plate of the invention is shown;

[0025] Figure 4 For invention Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 5 For invention Figure 3 The enlarged structural diagram of the middle B part;

[0027] Figure 6This is a front sectional structural diagram of the press-fit guide pin of the invention;

[0028] Figure 7 This is a schematic diagram of the front structure of the invented threaded rod;

[0029] Figure 8 For invention Figure 7 Schematic diagram of the enlarged structure of part C in the middle.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 101. Base plate; 2. Press-fitting mechanism; 201. Bushing workpiece; 202. Bottom support; 203. Return spring; 204. Guide column; 205. Bushing; 206. Press-fitting guide pin; 207. Fixed block; 208. Fixed slot one; 209. Fixed slot two; 210. Fixed slot three; 211. Fixed slot four; 3. Limiting mechanism; 301. Support block one; 302. Support block two; 303. Threaded rod; 304. Sliding rod; 305. Moving block; 306. Fixed plate; 307. Bottom ring; 308. Support column; 309. Limiting ring; 310. Protective sheet; 311. Support block; 312. Worm; 313. Worm wheel; 314. Motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0033] See also Figure 1-8As shown, the invention is a bushing press-fitting tool with guide limit, including a bottom plate 101, a fixing groove 208 is opened on the inner wall of the bottom plate 101, a press-fitting mechanism 2 is arranged inside the bottom plate 101, and a limit mechanism 3 is arranged on the front of the bottom plate 101. The press-fitting mechanism 2 includes a bushing workpiece 201, and the bushing workpiece 201 is supported and fixed by the bottom plate 101. The inner wall of the bushing workpiece 201 is slidably connected with a bottom bracket 202, and the inner wall of the bottom bracket 202 is opened with a fixing groove 211. The inner wall of the fixing groove 211 is slidably connected with a guide column 204, and the guide column 204 is supported by the fixing groove 211. The guide column 204 is supported so that it can remain vertical. The inner wall of the guide column 204 is fixedly connected to a fixed block 207. The outer wall of the fixed block 207 is fixedly connected to a press-fit guide pin 206. The press-fit guide pin 206 is moved under pressure to drive the guide column 204 to move. The inner wall of the press-fit guide pin 206 is provided with a fixed groove three 210. The inner wall of the fixed groove three 210 is rotatably connected to a bushing 205. The bushing 205 is supported by the fixed groove three 210, and at the same time, it is ensured that uniform pressure is transmitted to the bushing 205 during the press-fitting process to prevent the bushing from deformation or local scratches.

[0034] The bottom of the bushing workpiece 201 is fixedly connected to the top of the base plate 101, the outer surface of the base 202 is slidably connected to the inner wall of the base plate 101, the outer surface of the guide column 204 is slidably connected to the inner wall of the bushing 205, and the moving path of the base 202 is controlled by the base plate 101, so that the base 202 can maintain vertical movement.

[0035] The outer surface of the base 202 is slidably connected to the inner wall of the bottom plate 101, and a fixing groove 209 is opened on the inner wall of the base 202. A return spring 203 is fixedly connected to the inner wall of the fixing groove 209. One end of the return spring 203 away from the fixing groove 209 is fixedly connected to the inner wall of the fixing groove 1 208. The return spring 203 is fixed by the fixing groove 1 208 and the fixing groove 209.

[0036] The limiting mechanism 3 includes a motor 314 fixedly connected to the top of the base plate 101, and the bottom output shaft of the motor 314 is fixedly connected to the worm 312 through a coupling. The motor 314 drives the worm 312 to rotate. At the same time, there is a self-locking relationship between the worm 312 and the worm wheel 313, so that the worm wheel 313 can be fixed when the worm 312 stops rotating.

[0037] The outer surface of the worm 312 is rotatably connected to a support block 311 , and the bottom of the support block 311 is fixedly connected to a support block 1 301 , so that the worm 312 is supported by the support block 311 .

[0038] The inner wall of the support block 1 301 is rotatably connected to a threaded rod 303, and a worm wheel 313 is fixedly connected to the top of the threaded rod 303. The worm wheel 313 is meshed with one end of the worm 312 that is close to each other. The rotation of the worm 312 drives the worm wheel 313 to rotate, thereby driving the threaded rod 303 to rotate.

[0039] The outer surface of the threaded rod 303 is rotatably connected to a moving block 305, and there are two moving blocks 305. One end of the moving blocks 305 close to each other is fixedly connected to a fixed plate 306. The moving block 305 is driven to move by the rotation of the threaded rod 303, thereby driving the fixed plate 306 to move.

[0040] The inner wall of the moving block 305 away from the threaded rod 303 is slidably connected to the sliding rod 304, and the outer surface of the sliding rod 304 is fixedly connected to the supporting block 2 302, and the outer wall of the supporting block 2 302 is fixedly connected to the outer wall of the bottom plate 101, and the fixed plate 306 is controlled to move up and down by the sliding rod 304 and the threaded rod 303.

[0041] The outer wall of the fixed plate 306 is fixedly connected to a bottom ring 307, and the top of the bottom ring 307 is fixedly connected to a support column 308. There are several support columns 308 in total. The outer surface of the support column 308 is slidably connected to the inner wall of the bottom plate 101. The support column 308 is supported and fixed by the bottom ring 307, so that when the bottom ring 307 moves, it will drive the support column 308 to move.

[0042] A limit ring 309 is fixedly connected to the top of the support column 308, and a protective sheet 310 is fixedly connected to the top of the limit ring 309. The limit ring 309 is moved by the movement of the support column 308 to adjust the distance between the limit ring 309 and the base 202, thereby controlling the press-fitting depth.

[0043] A specific application of this embodiment is:

[0044] When the staff needs to use the equipment, when the bushing needs to be pressed into the appropriate position of the workpiece, the bushing workpiece 201 is placed on the top of the bottom plate 101, and then the bushing 205 is placed on the bottom bracket 202, and then the press-fitting guide pin 206 is inserted. The movement of the press-fitting guide pin 206 drives the guide column 204 to move along the inner wall of the bushing 205 until the guide column 204 is inserted into the fixing groove four 211 set on the inner wall of the bottom bracket 202. At this time, the bushing 205 is squeezed through the fixing groove three 210 to fix it. At this time, the guide column 204 and the bottom bracket 202 firmly fix the bushing 205 in the vertical direction. Finally, the press acts on the press-fitting guide pin 206, so that the press-fitting guide pin 206 is pressed into the inner wall of the bushing 205. The pin 206 moves downward, driving the bushing 205 and the base 202 to move downward. When the base 202 moves downward, it squeezes the return spring 203 to deform it until the bushing 205 is pressed into the workpiece. The bushing 205 and the bushing workpiece 201 are squeezed and fixed to each other. After the press-fitting is completed, the press-fitting guide pin 206 and the bushing workpiece 201 are removed. At this time, the return spring 203 is not subject to the pressure of the guide column 204. The return spring 203 pushes the base 202 to reset it. The whole process can ensure that the bushing 205 is vertical and not tilted, and always maintains the correct installation direction, so as to avoid the bushing 205 tilting and causing scratches on the outer surface during the press-fitting process, thereby improving the assembly quality. When facing workpieces with different pressing depths, the motor 314 can be driven at this time. The rotation of the motor 314 drives the worm 312 to rotate, thereby driving the worm wheel 313 to rotate, and then driving the threaded rod 303 to rotate. The rotation of the threaded rod 303 will drive the fixed plate 306 to move up and down, thereby driving the bottom ring 307 and the support column 308 to move. When the support column 308 moves, it will drive the limit ring 309 to move up and down, thereby controlling the movement distance of the bottom support 202 to achieve the control of the pressing depth, ensuring that the bushing can reach the same pressing depth during each pressing process, and avoiding excessive or incomplete installation.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that technicians in the relevant technical field can better understand and use the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bushing press-fitting tool with guide limit, comprising a bottom plate (101), wherein the inner wall of the bottom plate (101) is provided with a fixing groove (208), characterized in that: A pressing mechanism (2) is arranged inside the bottom plate (101), and a limiting mechanism (3) is arranged on the front side of the bottom plate (101); The press-fitting mechanism (2) comprises a bushing workpiece (201), the inner wall of the bushing workpiece (201) is slidably connected to a base (202), the inner wall of the base (202) is provided with a fixing groove four (211), the inner wall of the fixing groove four (211) is slidably connected to a guide column (204), the inner wall of the guide column (204) is fixedly connected to a fixing block (207), the outer wall of the fixing block (207) is fixedly connected to a press-fitting guide pin (206), the inner wall of the press-fitting guide pin (206) is provided with a fixing groove three (210), and the inner wall of the fixing groove three (210) is rotatably connected to a bushing (205).

2. A bushing press-fitting tool with guide limiter according to claim 1, characterized in that: The bottom of the bushing workpiece (201) is fixedly connected to the top of the base plate (101), the outer surface of the base support (202) is slidably connected to the inner wall of the base plate (101), and the outer surface of the guide column (204) is slidably connected to the inner wall of the bushing (205).

3. A bushing press-fitting tool with guide limiter according to claim 2, characterized in that: The outer surface of the base bracket (202) is slidably connected to the inner wall of the bottom plate (101); a second fixing groove (209) is provided on the inner wall of the base bracket (202); a return spring (203) is fixedly connected to the inner wall of the second fixing groove (209); and one end of the return spring (203) away from the second fixing groove (209) is fixedly connected to the inner wall of the first fixing groove (208).

4. A bushing press-fitting tool with guide limiter according to claim 3, characterized in that: The limiting mechanism (3) comprises a motor (314) fixedly connected to the top of the bottom plate (101), and the bottom output shaft of the motor (314) is fixedly connected to a worm (312) via a coupling.

5. The bushing press-fitting tool with guide limiter according to claim 4, characterized in that: The outer surface of the worm (312) is rotatably connected to a support block (311), and the bottom of the support block (311) is fixedly connected to a support block 1 (301).

6. A bushing press-fitting tool with guide limiter according to claim 5, characterized in that: The inner wall of the support block 1 (301) is rotatably connected to a threaded rod (303), the top of the threaded rod (303) is fixedly connected to a worm wheel (313), and the worm wheel (313) is meshed with one end of the worm (312) that is close to each other.

7. A bushing press-fitting tool with guide limiter according to claim 6, characterized in that: The outer surface of the threaded rod (303) is rotatably connected to a moving block (305), and two moving blocks (305) are provided in total. One end of the moving blocks (305) close to each other is fixedly connected to a fixing plate (306).

8. The bushing press-fitting tool with guide limiter according to claim 7, characterized in that: The inner wall of the moving block (305) away from the threaded rod (303) is slidably connected to a sliding rod (304), the outer surface of the sliding rod (304) is fixedly connected to a supporting block 2 (302), and the outer wall of the supporting block 2 (302) is fixedly connected to the outer wall of the bottom plate (101).

9. A bushing press-fitting tool with guide limiter according to claim 8, characterized in that: The outer wall of the fixed plate (306) is fixedly connected to a bottom ring (307), and the top of the bottom ring (307) is fixedly connected to a support column (308). A plurality of support columns (308) are provided, and the outer surface of the support column (308) is slidably connected to the inner wall of the bottom plate (101).

10. A bushing press-fitting tool with guide limiter according to claim 9, characterized in that: The top of the support column (308) is fixedly connected to a limiting ring (309), and the top of the limiting ring (309) is fixedly connected to a protective sheet (310).

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