A bushing press-in device and method for a well-type stand

Abstract

The application provides a bushing press-in device for a well-shaped frame, the well-shaped frame being a frame formed by four connecting rods and provided with mounting holes at four corner positions, the device comprising: a frame; a support assembly comprising a lower support assembly and an upper support assembly arranged on a third support frame, the lower support assembly being below the upper support assembly, the lower support assembly being used for supporting the connecting rods on the lower side of the well-shaped frame, and the upper support assembly being used for supporting the connecting rods on the upper side of the well-shaped frame, the plane in which the well-shaped frame supported on the lower support assembly and the upper support assembly is a vertical plane perpendicular to a first symmetry plane; and a press-in assembly comprising two lower press-in assemblies supported on two first support frames respectively and two upper press-in assemblies supported on two second support frames respectively, the lower press-in assemblies being used for pressing in bushings to the two mounting holes on the lower side, and the upper press-in assemblies being used for pressing in bushings to the two mounting holes on the upper side. The device can realize automatic pressing in of the bushings and can realize pressing in of the bushings of all the mounting holes on the well-shaped frame simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile assembly, in particular to a bushing pressing device and method for a well-shaped frame. BACKGROUND

[0002] The well-shaped frame or well-shaped bracket is installed on the connecting rod of the vehicle chassis, and is called well-shaped bracket because of the shape like a well. The main function is to strengthen the overall rigidity of the frame chassis. In order to install the well-shaped frame on the vehicle chassis, mounting holes are provided at the four corners of the well-shaped frame. At the same time, in order to increase the service life of the well-shaped frame, a bushing is arranged in the mounting hole, which is also a common setting on the vehicle. Therefore, before the well-shaped frame is assembled, the bushing needs to be installed into the mounting hole.

[0003] At present, the bushing is pressed into the mounting hole one by one, which is low in efficiency and cannot meet the current automation demand. SUMMARY

[0004] The main purpose of the present application is to provide a bushing pressing device and method for a well-shaped frame, which can automatically and simultaneously press four bushings into four mounting holes of the well-shaped frame, and is high in efficiency.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a bushing pressing device for a well-shaped frame, the well-shaped frame is a well-shaped structure formed by four connecting rods, mounting holes are provided at the positions of the four corners, and the device comprises:

[0006] A rack comprising a base frame and a first support frame, a second support frame and a third support frame arranged on the base frame, the first support frame has two, the second support frame has two, and the third support frame has one, the two first support frames and the two second support frames are symmetrically arranged with respect to a first symmetry plane, and the third support frame is located on the first symmetry plane, and the first symmetry plane is a vertical plane;

[0007] A support assembly comprising a lower support assembly and an upper support assembly arranged on the third support frame, the lower support assembly is located below the upper support assembly, the lower support assembly is used for supporting the connecting rods on the lower side of the well-shaped frame, and the upper support assembly is used for supporting the connecting rods on the upper side of the well-shaped frame, and the plane on which the well-shaped frame supported by the lower support assembly and the upper support assembly is a vertical plane perpendicular to the first symmetry plane;

[0008] A pressing assembly comprising two lower pressing assemblies supported on the two first support frames and two upper pressing assemblies supported on the two second support frames, the lower pressing assembly is used for pressing the bushing into the two mounting holes on the lower side, and the upper pressing assembly is used for pressing the bushing into the two mounting holes on the upper side.

[0009] Preferably, the lower support assembly comprises:

[0010] a second mounting plate arranged on the third support frame;

[0011] two lower support plates arranged on the left and right ends of the second mounting plate respectively, the two lower support plates being arranged symmetrically with respect to the first symmetry plane;

[0012] two lower support blocks arranged on the upper surfaces of the two lower support plates respectively, the two lower support blocks being arranged symmetrically with respect to the first symmetry plane, a lower support groove being arranged on each lower support block, the lower support groove being open upward and on both sides, the shape of the support groove being consistent with the shape of the corresponding position of the connecting rod on the lower side of the well-type frame, and the connecting rod on the lower side of the well-type frame being capable of being supported in the support groove.

[0013] Preferably, the upper support assembly comprises:

[0014] a third mounting plate arranged on the third support frame;

[0015] two upper support plates arranged on the left and right ends of the third mounting plate respectively, the two upper support plates being arranged symmetrically with respect to the first symmetry plane;

[0016] two upper support blocks arranged on the upper surfaces of the two upper support plates respectively;

[0017] two pressing blocks arranged on the upper surfaces of the two upper support plates and located at the rear side of the upper support blocks, each pressing block being capable of moving forward and backward with respect to the corresponding upper support plate, an upper support groove being formed between each pressing block and the corresponding upper support plate, and the pressing blocks being capable of pressing or releasing the well-type frame through forward and backward movement.

[0018] Preferably, a detection rod is rotatably arranged on one side of each pressing block, the detection rod having a first part and a second part, the first part and the second part making the detection rod L-shaped, the corner position of the detection rod being rotatably arranged on the pressing block through a rotating shaft, a blocking rod being arranged on the pressing block and located at the front side of the rotating shaft, a torsional spring being arranged on the rotating shaft, the torsional spring making the first part always have a tendency to move toward the blocking rod, and the front side of the first part abutting against the blocking rod when not subjected to external force, the first part having an included angle with the up-down direction less than 45° when the front side of the first part abuts against the blocking rod, and the second part extending backward, a sensor being arranged on the pressing block, the detection end of the sensor being parallel to the left-right direction and facing the plane where the detection rod is located, and the part of the second part above the sensor being located directly below the sensor when the front side of the first part abuts against the blocking rod.

[0019] Preferably, the lower support assembly and the upper support assembly are capable of moving up and down.

[0020] Preferably, each lower pressing assembly is movable in an XY horizontal plane relative to the corresponding first support frame, and each upper pressing assembly is movable in an XY horizontal plane relative to the corresponding second support frame.

[0021] The two groups of lower pressing assemblies and the two groups of upper pressing assemblies are completely identical in structure, and each lower pressing assembly and each upper pressing assembly comprises:

[0022] A U-shaped frame lying horizontally, the openings of the U-shaped frames of the two groups of lower pressing assemblies are oppositely arranged in the left-right direction, and the openings of the U-shaped frames of the two groups of upper pressing assemblies are oppositely arranged in the left-right direction;

[0023] An electric cylinder, a cylinder body of which is arranged on the rear side of the rear side portion of the U-shaped frame, an extending end of a telescopic rod of which extends through the rear side portion of the U-shaped frame and into the opening of the U-shaped frame, and the telescopic rod extends forward and backward;

[0024] A bushing support cylinder arranged on the extending end of the telescopic rod for supporting a bushing to be pressed in.

[0025] Preferably, a centering assembly arranged on the third support frame is further included, and the centering assembly comprises:

[0026] A fourth mounting plate arranged on the third support frame;

[0027] Two slide rods slidably arranged on the fourth mounting plate, the two slide rods are symmetrically arranged relative to the first symmetry plane and can be synchronously moved towards each other or away from each other;

[0028] Two centering push rods respectively arranged at the ends of the two slide rods away from each other, the two slide rods respectively extend along the front-rear direction and are symmetrically arranged relative to the first symmetry plane.

[0029] Preferably, the centering assembly further comprises:

[0030] Two connecting rods respectively hinged at the ends of the two slide rods close to each other;

[0031] A push block slidably arranged on the fourth mounting plate, the ends of the two connecting rods away from the slide rods are respectively hinged to the push block, and the hinging axes of the two connecting rods and the push block are collinear or symmetrically arranged relative to the first symmetry plane;

[0032] A centering cylinder arranged on the fourth mounting plate for driving the push block to move forward and backward.

[0033] Preferably, a positioning assembly is further included, the positioning assembly includes two positioning rods, the two positioning rods are arranged on the third support frame and are symmetrically arranged relative to the first symmetry plane, the two positioning rods each extend along the front-rear direction and are capable of moving forward and backward relative to the third support frame, and positioning holes matched with the two positioning rods are arranged on the well-type frame, and the two positioning rods are capable of being inserted into the corresponding positioning holes.

[0034] The application further provides a bushing pressing method for a well-type frame, and the method adopts the pressing device and specifically includes the following steps.

[0035] Step S1, moving the well-type frame to be pressed with a bushing to a predetermined position;

[0036] Step S2, moving the lower support assembly and the upper support assembly upward to support the well-type frame;

[0037] Step S3, operating the centering assembly to center the well-type frame;

[0038] Step S4, extending the positioning rods and inserting them into the positioning holes in the well-type frame;

[0039] Step S5, moving the pressing blocks forward to press the well-type frame;

[0040] Step S6, moving the two lower pressing assemblies to a predetermined position and moving the two upper pressing assemblies to a predetermined position;

[0041] Step S7, pressing the bushing into the mounting hole of the well-type frame by the lower pressing assembly and the upper pressing assembly.

[0042] Compared with the prior art, the application has the following beneficial effects:

[0043] 1) The application can automatically press the bushing into the mounting hole, and the whole process does not need manual participation, thereby saving labor cost;

[0044] 2) The application can press the bushing of all the mounting holes on the well-type frame at the same time, thereby improving production efficiency;

[0045] 3) The support assembly of the application can move up and down, and the pressing assembly can move left and right, so that the well-type frame can be moved out when the well-type frame is fed and discharged, thereby avoiding collision and providing safety; and the positioning rods and the pressing blocks are adopted, so that the well-type frame is prevented from moving during pressing. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 and Figure 2 is a perspective view of the application;

[0047] Figure 3 is an enlarged view of A;

[0048] Figure 4 is an enlarged view of B;

[0049] Figure 5 is an enlarged view of C;

[0050] Figure 6 is an enlarged view of D;

[0051] Figure 7 and Figure 8 is a partial view. DETAILED DESCRIPTION

[0052] The following description is presented to enable any person skilled in the art to practice the application as claimed. The preferred embodiments disclosed herein are only examples of the application and alternative variations could be adopted by one skilled in the art without departing from the spirit and scope of the application.

[0053] As shown in Figure 1 , the well-type frame 100 is a cross-shaped structure formed by four connecting rods, and mounting holes 101 are arranged at positions of four corners.

[0054] As shown in Figures 1-8 , a bushing pressing device for a well-type frame includes a rack 1 and a supporting assembly and a pressing assembly arranged on the rack 1, the supporting assembly is used for supporting a well-type frame 100 to be pressed with a bushing, and the pressing assembly is used for pressing the bushing into the well-type frame 100 located on the supporting assembly.

[0055] The rack 1 includes a base frame 14 and a third supporting frame 13 arranged on the base frame 14. The supporting assembly includes a lower supporting assembly 31 and an upper supporting assembly 32 arranged on the third supporting frame 13, the lower supporting assembly 31 is used for supporting the connecting rods on the lower side of the well-type frame 100, and the upper supporting assembly 32 is used for supporting the connecting rods on the upper side of the well-type frame 100.

[0056] The lower supporting assembly 31 includes a second mounting plate 313 arranged on the third supporting frame 13, two lower supporting plates 314 arranged on the left and right ends of the second mounting plate 313 respectively, and two lower supporting blocks 311 arranged on the two lower supporting plates 314 respectively, the two lower supporting plates 314 are symmetrically arranged with respect to a first symmetry plane, the first symmetry plane is a vertical plane perpendicular to the left-right direction, and the two lower supporting blocks 311 are symmetrically arranged with respect to the first symmetry plane. A lower supporting groove 312 is arranged on the lower supporting block 311, the lower supporting groove 312 is upwardly and laterally open, the shape of the supporting groove 312 is consistent with the shape of the corresponding position of the connecting rod on the lower side of the well-type frame 100, the connecting rod on the lower side of the well-type frame 100 can be supported in the supporting groove 312, and the well-type frame 100 can be prevented from moving forward and backward by the supporting groove 312.

[0057] The upper support assembly 32 is arranged above the lower support assembly 31.

[0058] The upper support assembly 32 comprises a third mounting plate 323 arranged on the third support frame 13, two upper support plates 324 arranged on the left and right ends of the third mounting plate 323 respectively, and an upper support block 321 and a pressing block 322 arranged on the two upper support plates 324 respectively. The pressing block 322 is arranged at the back side of the corresponding upper support block 321 and is movable forward and backward relative to the upper support plate 324. An upper support groove 325 is formed between the pressing block 322 and the corresponding upper support block 321. The connecting rod on the upper side of the well-type frame 100 can be placed in the upper support groove 325. The well-type frame 100 can be pressed by moving the pressing block 322 forward and backward. The pressing block 322 is driven by a pressing cylinder 328.

[0059] Further, a detection rod 326 is rotatably arranged on one side of the pressing block 322. The detection rod 326 has a first part and a second part, and the first part and the second part make the detection rod 326 L-shaped. The corner position of the detection rod 326 is rotatably arranged on the pressing block 322 by a rotating shaft (not shown). A stop rod 329 is arranged on the pressing block 322 in front of the rotating shaft. A torsion spring (not shown) is arranged on the rotating shaft. The first part always has a tendency to move towards the stop rod 329, and when not subjected to external force, the front side of the first part abuts against the stop rod 329. When the front side of the first part abuts against the stop rod 329, the included angle between the first part and the up-down direction is less than 45°, and the second part extends backward. A sensor 327 is arranged on the pressing block 322. The detection end of the sensor 327 is parallel to the left-right direction and faces the plane where the detection rod 326 is located. When the front side of the first part abuts against the stop rod 329, the part of the second part that is aligned with the sensor 327 in the up-down direction is directly below the sensor 327. When the pressing block 322 moves towards the well-type frame 100 with the detection rod 326, the first part of the detection rod 326 abuts against the well-type frame 100. When the pressing block 322 continues to move forward, the detection rod 326 rotates around the rotating shaft. When the sensor 327 detects the second part, the pressing block 322 stops moving forward, indicating that it has been pressed.

[0060] Preferably, the lower support assembly 31 and the upper support assembly 32 are both capable of moving up and down relative to the third support frame 13, when it is needed to place the well-type frame 100 on the lower support assembly 31 and the upper support assembly 32, the lower support assembly 31 and the upper support assembly 32 are first moved downward by a distance, the well-type frame 100 is placed in position by the mechanical claws, after that, the lower support assembly 31 and the upper support assembly 32 are moved upward to a predetermined position, the lower connecting rods and the upper connecting rods of the well-type frame 100 are supported respectively, then the pressing block 322 is moved forward to clamp the well-type frame 100. After the bushing is pressed into the well-type frame 100, the mechanical claws hold the well-type frame 100, the lower support assembly 31 and the upper support assembly 32 are moved downward by a distance, finally the well-type frame 100 is taken away by the mechanical claws.

[0061] The pressing assembly includes two groups of lower pressing assemblies 21 and two groups of upper pressing assemblies 22, the two groups of lower pressing assemblies 21 are supported on the base frame 14 through the first support frame 11 respectively, and are used for pressing bushings into two installation holes located below respectively. The two groups of upper pressing assemblies 22 are supported on the base frame 14 through the second support frame 12 respectively, and are used for pressing bushings into two installation holes located above respectively. Each lower pressing assembly 21 is capable of moving in the XY horizontal plane relative to the corresponding first support frame 11, and each upper pressing assembly 22 is capable of moving in the XY horizontal plane relative to the corresponding second support frame 12.

[0062] The two groups of lower pressing assemblies 21 and the two groups of upper pressing assemblies 22 are completely the same in structure, each lower pressing assembly 21 and each upper pressing assembly 22 includes a horizontally placed U-shaped frame 221, an electric cylinder 222 and a bushing support cylinder 223, the openings of the U-shaped frames 221 of the two groups of lower pressing assemblies 21 are oppositely arranged in the left-right direction, the cylinder body of the electric cylinder 222 is arranged on the rear side of the rear side portion of the U-shaped frame 221, the extending end of the telescopic rod of the electric cylinder 222 penetrates into the U-shaped opening of the U-shaped frame 221 through the rear side portion of the U-shaped frame 221, the telescopic rod of the electric cylinder 222 extends forward and backward, the bushing support cylinder 223 is arranged on the extending end of the telescopic rod of the electric cylinder 222, and the bushing support cylinder 223 is used for placing a bushing to be pressed. In the actual pressing process, the well-type frame 100 is located between the front side portion and the rear side portion of each U-shaped frame 221, the bushing support cylinder 223 is aligned with the corresponding installation hole 101, the telescopic rod of the electric cylinder 222 extends forward to press the bushing into the installation hole 101, after the pressing is completed, the telescopic rod drives the bushing support cylinder 223 to retreat, and the bushing remains in the installation hole 101. Specifically, the bushing is in interference fit with the installation hole 101, the bushing support cylinder 223 can be left with a certain gap, or the bushing support cylinder 223 is arranged to have a certain flexibility, of course, other ways in the prior art can also be used to realize the separation of the bushing and the bushing support cylinder 223.

[0063] In actual production, before the well-type frame 100 is placed into the predetermined position, the left pressing assembly moves to the left and the right pressing assembly moves to the right, so that the well-type frame 100 can be directly moved from the front side of the equipment to the predetermined position. When the well-type frame 100 is moved to the predetermined position, the left pressing assembly moves to the right and the right pressing assembly moves to the left, so that the bushing support cylinder 223 is aligned with the corresponding mounting hole 101. The movement of the pressing assembly in the front-rear direction is driven by the telescopic cylinder 225.

[0064] After the pressing assembly is moved to the position in the left-right direction, the pressing assembly moves backward by a distance, so that the front side part of the U-shaped frame 221 abuts against the position of the well-type frame 100 corresponding to the corresponding mounting hole 101. In this way, when the bushing is pressed, the deformation of the well-type frame 100 can be avoided. Preferably, a pad 224 is arranged at the rear side of the front side part of the U-shaped frame 221. The pad 224 is annular, the inner diameter of the pad 224 is slightly larger than the diameter of the mounting hole 101, and the axis of the pad 224 is collinear with the axis of the corresponding telescopic rod.

[0065] The bushing pressing device further comprises a centering assembly 4 arranged on the third support frame 13. The centering assembly 4 comprises a fourth mounting plate 41 arranged on the third support frame 13, two slide rods 42 slidably arranged on the fourth mounting plate 41, and two centering push rods 46. The two slide rods 42 are symmetrically arranged relative to the first symmetry plane and can be synchronously moved towards or away from each other. One of the centering push rods 46 is arranged at the end of each slide rod 42 away from the other slide rod 42. The slide rods 42 extend in the front-rear direction. Before the well-type frame 100 is placed into position, the two slide rods 42 are close to each other. After the well-type frame 100 is placed into position, the two slide rods 42 move away from each other, and the two centering push rods 46 push the well-type frame 100 to move, so that the center of the well-type frame 100 moves onto the first symmetry plane.

[0066] Further, the centering assembly 4 further comprises two connecting rods 43, a push block 44, and a centering cylinder 45. One of the connecting rods 43 is hinged at the end of each slide rod 42 away from the centering push rod 46. The end of the connecting rod 43 away from the slide rod 42 is hinged on the push block 44. The hinging axes of the two connecting rods 43 and the push block 44 are collinear or symmetrically arranged relative to the first symmetry plane. The push block 44 can move forward and backward relative to the fourth mounting plate 41. The centering cylinder 45 is arranged on the fourth mounting plate 41 and is used to drive the push block 44 to move forward and backward. When the cylinder rod of the centering cylinder 45 is extended, the two centering push rods 46 can be synchronously driven to move away from each other to realize the centering of the well-type frame 100. After the centering is completed, the cylinder rod of the centering cylinder 45 is retracted. Specifically, the centering is performed before the well-type frame 100 is placed on the lower support assembly 31 and the upper support assembly 32 and the pressing block 322 is pressed.

[0067] The bushing pressing device further comprises a positioning assembly, the positioning assembly comprises two positioning rods 5 arranged on the third support frame 13 and symmetrically relative to the first symmetry plane, the two positioning rods 5 each extend along the front-rear direction and are movable forward and backward relative to the third support frame 13, and the well-shaped frame 100 is provided with positioning holes matched with the two positioning rods 5, after the centering is completed, the two positioning rods 5 are moved forward and inserted into the corresponding positioning holes, and after the positioning rods 5 are inserted into the positioning holes, the pressing block 322 is pressed again. Each positioning rod 5 is driven by a positioning cylinder 51.

[0068] The bushing pressing process of the well-shaped frame 100 is as follows: the manipulator moves the well-shaped frame 100 to a predetermined position; the lower support assembly 31 and the upper support assembly 32 are moved upward and support the well-shaped frame 100, and the manipulator releases the well-shaped frame 100; the centering assembly works to realize the centering of the well-shaped frame 100; the positioning rods 5 extend into the corresponding positioning holes; the pressing block 322 is pressed; the two groups of lower pressing-in assemblies 21 and the two groups of upper pressing-in assemblies 22 are respectively moved to a predetermined position and then moved backward, so that the pad blocks 224 abut against the well-shaped frame 100, and the electric cylinders 222 work to press the bushings into the mounting holes 101.

[0069] After the bushing pressing is completed, the following process is performed: the manipulator holds the well-shaped frame 100; the two lower pressing-in assemblies 21 and the two upper pressing-in assemblies 22 are respectively moved in the direction away from each other, the positioning rods 5 are retracted, and the centering push rod 46 is retracted; the pressing block 322 is released, and the lower support assembly 31 and the upper support assembly 32 are moved downward; and the manipulator moves the well-shaped frame 100 to other designated positions.

[0070] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A bushing pressing device for a well frame, wherein the well frame is a grid-shaped structure formed by four connecting rods, and mounting holes are provided at the four corners, characterized in that, The bushing pressing device comprises: a frame comprising a base frame and a first support frame, a second support frame and a third support frame arranged on the base frame, the first support frame having two, the second support frame having two, and the third support frame having one, the two first support frames and the two second support frames being symmetrically arranged relative to a first symmetry plane, and the third support frame being located on the first symmetry plane, the first symmetry plane being a vertical plane; a support assembly comprising a lower support assembly and an upper support assembly arranged on the third support frame, the lower support assembly being located below the upper support assembly, the lower support assembly being used for supporting connecting rods on the lower side of the well-type frame, and the upper support assembly being used for supporting connecting rods on the upper side of the well-type frame, the plane on which the well-type frame supported by the lower support assembly and the upper support assembly is a vertical plane perpendicular to the first symmetry plane; a pressing assembly comprising two lower pressing assemblies supported on the two first support frames and two upper pressing assemblies supported on the two second support frames, the lower pressing assemblies being used for pressing bushings into two installation holes on the lower side, and the upper pressing assemblies being used for pressing bushings into two installation holes on the upper side; the lower support assembly comprises: a second mounting plate arranged on the third support frame; two lower support plates arranged on the left and right ends of the second mounting plate, the two lower support plates being symmetrically arranged relative to the first symmetry plane; two lower support blocks arranged on the upper surfaces of the two lower support plates, the two lower support blocks being symmetrically arranged relative to the first symmetry plane, and a lower support groove being arranged on each lower support block, the lower support groove being open upward and on the left and right sides, the shape of the support groove being consistent with the shape of the corresponding position of the connecting rods on the lower side of the well-type frame, and the connecting rods on the lower side of the well-type frame being capable of being supported in the support groove; the upper support assembly comprises: a third mounting plate arranged on the third support frame; two upper support plates arranged on the left and right ends of the third mounting plate, the two upper support plates being symmetrically arranged relative to the first symmetry plane; two upper support blocks arranged on the upper surfaces of the two upper support plates; two pressing blocks arranged on the upper surfaces of the two upper support plates and located on the rear side of the upper support blocks, each pressing block being capable of moving forward and backward relative to the corresponding upper support plate, and an upper support groove being formed between each pressing block and the corresponding upper support block, and the pressing blocks being capable of pressing or releasing the well-type frame through forward and backward movement.

2. A bushing press-in device for a well-type stand according to claim 1, characterized in that A detection rod is rotatably arranged on the left and right sides of one of the pressing blocks, the detection rod has a first part and a second part, the first part and the second part make the detection rod L-shaped, the corner position of the detection rod is rotatably arranged on the pressing block through a rotating shaft, a stop rod is arranged on the pressing block and located on the front side of the rotating shaft, a torsion spring is arranged on the rotating shaft, the torsion spring makes the first part always have a tendency to move towards the stop rod, and the front side of the first part abuts against the stop rod when no external force is applied; the first part has an angle less than 45° with the up-down direction when the front side of the first part abuts against the stop rod, and the second part extends backward; a sensor is arranged on the pressing block, the detection end of the sensor is parallel to the left-right direction and faces the plane where the detection rod is located, and the part of the second part that is aligned with the sensor in the up-down direction is located directly below the sensor when the front side of the first part abuts against the stop rod.

3. A bushing press-in device for a well-type stand according to claim 1, characterized in that The lower support assembly and the upper support assembly are capable of moving up and down.

4. A bushing press-in device for a well-type stand according to claim 3, characterized in that Each lower pressing assembly is capable of moving in the XY horizontal plane relative to the first support frame, and each upper pressing assembly is capable of moving in the XY horizontal plane relative to the second support frame. The two groups of lower pressing assemblies and the two groups of upper pressing assemblies are completely identical in structure, each lower pressing assembly and each upper pressing assembly comprises: A flat U-shaped frame, the openings of the U-shaped frames of the two groups of lower pressing assemblies are arranged facing each other in the left-right direction, and the openings of the U-shaped frames of the two groups of upper pressing assemblies are arranged facing each other in the left-right direction; An electric cylinder, the cylinder body of which is arranged on the rear side of the rear side portion of the U-shaped frame, the protruding end of the telescopic rod of which penetrates through the rear side portion of the U-shaped frame and extends into the opening of the U-shaped frame, and the telescopic rod extends forward and backward; A bushing support cylinder arranged on the protruding end of the telescopic rod for supporting the bushing to be pressed in.

5. A bushing press-in device for a well-type stand according to claim 4, characterized in that Further comprising a centering assembly arranged on the third support frame, the centering assembly comprises: A fourth mounting plate arranged on the third support frame; Two slide rods slidably arranged on the fourth mounting plate, the two slide rods are symmetrically arranged relative to the first symmetry plane and are capable of synchronous movement facing each other or away from each other; Two centering push rods respectively arranged at the ends of the two slide rods away from each other, the two slide rods respectively extend along the front-rear direction and are symmetrically arranged relative to the first symmetry plane.

6. A bushing press-in device for a well-type stand according to claim 5, characterized in that The centering assembly further comprises: Two connecting rods respectively hinged at the ends of the two slide rods close to each other; A push block slidably arranged on the fourth mounting plate, the ends of the two connecting rods away from the slide rods are respectively hinged on the push block, and the hinging axes of the two connecting rods and the push block are collinear or symmetrically arranged relative to the first symmetry plane; A centering cylinder arranged on the fourth mounting plate for driving the push block to move forward and backward.

7. A bushing press-in device for a well-type stand according to claim 6, characterized in that Further comprising a positioning assembly, the positioning assembly comprises two positioning rods arranged on the third support frame and symmetrically arranged relative to the first symmetry plane, the two positioning rods both extend along the front-rear direction and are capable of moving forward and backward relative to the third support frame, and the third support frame is provided with positioning holes matched with the two positioning rods, and the two positioning rods can be inserted into the corresponding positioning holes.

8. A method of press-fitting a bushing of a well-type stand using the press-fitting device of claim 7, characterized in that Specifically comprising the following steps: Step S1, moving the well-type frame with the bushing to be pressed in to a predetermined position; Step S2, the lower support assembly and the upper support assembly move upward to support the well pattern frame; Step S3, the centering assembly works to center the well pattern frame; Step S4, the positioning rod extends and is inserted into the positioning hole in the well pattern frame; Step S5, the pressing block moves forward to press the well pattern frame; Step S6, the two lower pressing assemblies move toward each other to the predetermined position, and the two upper pressing assemblies move toward each other to the predetermined position; Step S7, the lower pressing assembly and the upper pressing assembly press the bushing into the mounting hole of the well pattern frame.

Images