Press-fitting positioning mechanism and press-fitting device

Abstract

The utility model provides a press-fitting positioning mechanism and a press-fitting device.The press-fitting positioning mechanism is used for positioning a workpiece on which a steel ball is to be press-fitted, the press-fitting positioning mechanism comprises a first positioning mechanism and a second positioning mechanism, the first positioning mechanism is provided with a first positioning part for positioning the workpiece in a horizontally placed state, and the second positioning mechanism is provided with a second positioning part for positioning the workpiece in a horizontally placed state; the first positioning part can move so as to adjust the position of each first process hole in the workpiece; and the second positioning mechanism is provided with a second positioning part for positioning the workpiece in the vertically placed state, the second positioning part can move so as to adjust the position of each second process hole in the workpiece, and the second positioning part can rotate so as to adjust the vertical placing angle of the workpiece. Compared with the prior art, the press-fitting positioning mechanism can well position a workpiece in a horizontally-placed state and a workpiece in a vertically-placed state, so that steel ball press-fitting can be carried out on the first process holes and the second process holes in the workpieces, the takt time of the steel ball press-fitting procedure is shortened, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve block processing equipment, and in particular to a press-fitting positioning mechanism. The utility model also relates to a press-fitting device provided with the press-fitting positioning mechanism. Background Art

[0002] In the hydraulic valve block structure, a large number of hydraulic oil circuits are integrated on the valve body of the valve block. During the processing of these oil circuits, holes need to be opened in all directions of the valve body to process the inside. This results in a large number of interconnected holes on its six main surfaces after the valve body oil circuits are processed.

[0003] In order to ensure the performance of the product, the holes (i.e. process holes) generated during the processing need to be blocked during the assembly of the valve body, leaving only the normal inlet and outlet of the oil circuit. At this time, it is necessary to select steel balls of appropriate diameter according to the size of each processing hole, and press the steel balls into the process holes of the valve body to achieve the purpose of blocking the processing holes. Since there are many process holes in the oil circuit of the valve body and they are scattered on various surfaces, the process is inevitably scattered during the steel ball press-fitting process, resulting in low assembly efficiency. Utility Model Content

[0004] In view of this, the utility model aims to provide a press-fitting positioning mechanism to shorten the cycle of the steel ball press-fitting process and improve assembly efficiency.

[0005] The steel balls can be pressed on multiple surfaces, which can shorten the cycle of the steel ball pressing process and improve product assembly efficiency.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A press-fitting positioning mechanism, used for positioning a workpiece to be press-fitted with a steel ball, the press-fitting positioning mechanism comprising a first positioning mechanism and a second positioning mechanism;

[0008] The first positioning mechanism has a first positioning portion for positioning the workpiece in a horizontal position, and the first positioning portion can move along a first direction and a second direction to adjust the position of each first process hole on the workpiece;

[0009] The second positioning mechanism has a second positioning portion for positioning the workpiece in a vertical placement state, the second positioning portion can move along the first direction and the second direction to adjust the position of each second process hole on the workpiece, and the second positioning portion can rotate to adjust the vertical placement angle of the workpiece;

[0010] Wherein, the first direction and the second direction are arranged orthogonally.

[0011] Furthermore, the press-fitting positioning mechanism includes a supporting plate; the first positioning mechanism includes a first linear module arranged on the supporting plate, a second linear module driven by the first linear module to move along the first direction, and a floating plate driven by the second linear module to move along the second direction; the first positioning portion and the second positioning mechanism are both arranged on the floating plate.

[0012] Furthermore, the floating plate has an air flow channel, one end of the air flow channel faces the supporting plate, and the other end of the air flow channel is used to connect to an external air source, and the external air source is used to fill the air flow channel with gas; under the push of the gas in the air flow channel, the floating plate can be suspended above the supporting plate.

[0013] Furthermore, the first positioning portion includes a first positioning end surface and a clamping block which are relatively arranged on the floating plate, and the first positioning end surface and the clamping block are used to clamp and position the side surface of the workpiece.

[0014] Furthermore, a tightening column is slidably provided on the tightening block, and an air supply channel is provided in the tightening block. The tightening column can be tightened on the side surface of the workpiece under the push of the gas in the air supply channel.

[0015] Furthermore, the second positioning mechanism includes a vertical plate arranged on the floating plate, and a rotation driving device arranged on the vertical plate; the rotation driving device is used to drive the second positioning portion to rotate, and the second positioning portion is arranged on the vertical plate.

[0016] Furthermore, the second positioning portion includes a second positioning end surface and a pressing block provided on the vertical plate; the second positioning end surface is used to position the first surface of the workpiece, and the pressing block is used to press the second surface opposite to the first surface.

[0017] Furthermore, a connecting arm is provided on the vertical plate, and the clamping block is provided on the connecting arm; the connecting arm can rotate between a first position and a second position, and in the first position, the clamping block is pressed on the first surface, and in the second position, the clamping block is released from the pressure on the first surface.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The workpiece positioning mechanism described in the utility model can better position the workpiece in a horizontally placed state and the workpiece in a vertically placed state through the first positioning part and the second positioning part, and the first positioning part and the second positioning part can both move along the first direction and the second direction to adjust the positions of the first process holes and the second process holes on the workpiece, and the second positioning part can rotate to adjust the vertical placement angle of the workpiece, so that steel balls can be pressed on multiple surfaces of the workpiece, which can help shorten the beat of the steel ball pressing process, improve product assembly efficiency, and have a very good use effect.

[0020] In addition, the supporting plate can facilitate the arrangement of the first positioning mechanism and the second positioning mechanism. The first positioning part and the second positioning part are arranged on the floating plate, which can save the number of the first linear module and the second linear module. Moreover, the air flow channel arranged in the floating plate can be pushed by the gas in the air flow channel, so that the floating plate can be suspended above the supporting plate, which is conducive to reducing the friction force during the movement of the floating plate and reducing the wear of the floating plate, thereby facilitating the improvement of the positioning accuracy of the workpiece.

[0021] Secondly, the first positioning end surface can be used to better position the side of the workpiece, and the set clamping block can be pressed against the other side of the workpiece. The cooperation between the first positioning end surface and the clamping block can well position the horizontally placed workpiece. The clamping column and the air supply channel provided on the clamping block can use the gas in the air supply channel to push the clamping column to press against the side of the workpiece, which can not only further improve the positioning effect, but also facilitate the loading operation of the horizontally placed workpiece.

[0022] In addition, the vertical plate arranged on the floating plate can provide an installation foundation for the second positioning part and the rotation drive device, and the second positioning part can move along the first direction and the second direction with the floating plate, and at the same time, under the action of the rotation drive device, the second positioning part can be rotated. The second positioning part adopts the cooperation of the second positioning end face and the clamping block, which can well position the workpiece in a vertical position. The clamping block is arranged on the rotatable connecting arm. On the one hand, when in the second position, it is convenient for the loading operation of the workpiece in a vertical position. On the other hand, when in the first position, the clamping block can be pressed on the first surface of the workpiece. The cooperation between the clamping block and the second positioning end face can well position the workpiece in a vertical position.

[0023] Another object of the utility model is to propose a press-fitting device, comprising a steel ball feeding mechanism, a workpiece feeding mechanism, a press-fitting mechanism, and the press-fitting positioning mechanism as described above; the steel ball feeding mechanism is used to convey multiple steel balls to the press-fitting mechanism one by one; the workpiece feeding mechanism is used to grab the workpiece to the workpiece positioning mechanism; the press-fitting mechanism is located above the steel ball press-fitting positioning mechanism, and the press-fitting mechanism comprises a pressure head seat and a pressure head slidably arranged on the pressure head seat, the pressure head seat has a feeding channel for a single steel ball to enter, and the pressure head can press-fit the steel balls in the feeding channel into each of the first process holes or each of the second process holes one by one.

[0024] Furthermore, the steel ball feeding mechanism includes a silo with a feed port, and the feed port is connected to the feeding channel; a push plate that can move back and forth is provided in the silo, and as the push plate moves, the multiple steel balls in the silo can roll to the feed port in turn and be transported to the feeding channel.

[0025] Furthermore, a sliding channel is provided at the bottom of the silo; the push plate is slidably arranged in the sliding channel, and a portion of the push plate can extend into the silo to push the steel ball to the feed port.

[0026] Furthermore, a guide surface is provided in the silo for guiding the steel balls to roll onto the push plate; and / or,

[0027] The push plate is provided with a guide groove for accommodating a single steel ball, and the guide groove is arranged to be inclined downward in the direction pointing to the feed port.

[0028] The steel ball press-fitting device of the utility model can realize the press-fitting of steel balls on multiple surfaces of a workpiece by adopting the above-mentioned workpiece positioning mechanism, thereby shortening the cycle of the steel ball press-fitting process and improving product assembly efficiency.

[0029] In addition, the silo provided in the steel ball feeding mechanism is used to hold a plurality of steel balls to be pressed, and a push plate is provided in the silo, and the feed port and the feeding channel are connected, so that under the movement of the push plate, the steel balls in the silo roll to the feed port in turn and are transported to the feeding channel, thereby improving the feeding efficiency and feeding stability of the steel balls. The sliding channel provided at the bottom of the silo is conducive to the guided movement of the push plate, and is also convenient for the arrangement and installation of the jacking drive device that drives the push plate to move.

[0030] In addition, the guide surface set in the silo can guide the steel balls to roll onto the push plate, thereby improving the reliability of steel ball feeding. The guide groove set on the push plate can allow individual steel balls to be transported in sequence, and the guide groove is set downwardly in the direction pointing to the feed port. The shape characteristics of the steel balls can be used to make the steel balls roll smoothly along the guide groove to the feed port, thereby further ensuring the reliability of steel ball feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of a workpiece positioning mechanism according to an embodiment of the utility model from a first perspective;

[0033] Figure 2 It is a structural schematic diagram of a workpiece positioning mechanism according to an embodiment of the utility model from a second viewing angle;

[0034] Figure 3 This is a structural schematic diagram of the first positioning mechanism described in an embodiment of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the first positioning part and the second positioning part according to an embodiment of the utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the floating plate according to an embodiment of the utility model;

[0037] Figure 6 It is a structural schematic diagram of the steel ball press-fitting device according to an embodiment of the utility model from a first viewing angle;

[0038] Figure 7 It is a structural schematic diagram of the steel ball press-fitting device according to an embodiment of the utility model from a second viewing angle;

[0039] Figure 8 It is a structural schematic diagram of the steel ball feeding mechanism according to an embodiment of the utility model from a first perspective;

[0040] Fig. 9 It is a structural schematic diagram of the steel ball feeding mechanism according to an embodiment of the utility model from a second viewing angle;

[0041] Fig.10 This is a schematic diagram of the structure of the bottom of the silo according to an embodiment of the utility model;

[0042] Fig.11 It is a partial structural schematic diagram of the press-fitting mechanism described in the embodiment of the utility model;

[0043] Description of reference numerals:

[0044] 1. Frame; 2. Steel ball feeding mechanism; 3. Workpiece feeding mechanism; 4. Press-fitting positioning mechanism; 5. Press-fitting mechanism;

[0045] 10a, workpiece in horizontal position; 10b, workpiece in vertical position; 20, fourth mounting plate; 21, hopper; 22, push plate; 211, sliding channel; 212, feed port; 213, guide surface; 221, guide groove; 23, lifting drive device; 40, first positioning mechanism; 41, bearing plate; 42, first linear module; 43, second linear module; 44, floating plate; 45, second positioning mechanism; 411, first mounting plate; 412, second mounting plate; 413, boss; 4 41. Carrying block; 442. Positioning member; 443. Clamping block; 4431. Clamping column; 4421. First positioning end face; 451. Vertical plate; 452. Third mounting plate; 4521. Second positioning end face; 453. Clamping block; 454. Connecting arm; 455. Rotation drive device; 4401. Air inlet; 4402. Airway; 4403. Air outlet; 51. Pressure head; 52. Pressure head seat; 521. Feeding channel; 5211. Inclined section; 5212. Vertical section; 53. Linear drive device. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] The present embodiment relates to a press-fitting positioning mechanism, which is used to position a workpiece on which a steel ball is to be press-fitted, and the press-fitting positioning mechanism can well position a horizontally placed workpiece 10a and a vertically placed workpiece 10b, thereby facilitating shortening the cycle of the steel ball press-fitting process and improving assembly efficiency.

[0051] In terms of overall structure, Figure 1 to Figure 2 As shown, the press-fitting positioning mechanism 4 of this embodiment includes a first positioning mechanism 40 and a second positioning mechanism 45. The first positioning mechanism 40 has a first positioning portion for positioning the horizontally placed workpiece 10a, and the positioning portion can move along the first direction and the second direction to adjust the position of each first process hole on the workpiece.

[0052] The second positioning mechanism 45 has a second positioning part for positioning the workpiece 10b in a vertically placed state, and the second positioning part can move along a first direction and a second direction to adjust the position of each second process hole on the workpiece, and the second positioning part can rotate to adjust the vertical placement angle of the workpiece. The first direction and the second direction are orthogonal.

[0053] As shown in the above structure, the setting of the first positioning part and the second positioning part can better position the workpiece 10a in a horizontally placed state and the workpiece 10b in a vertically placed state, and the first positioning part and the second positioning part can both move along the first direction and the second direction to adjust the positions of the first process holes and the second process holes on the workpiece, and the second positioning part can rotate to adjust the vertical placement angle of the workpiece, which can facilitate the steel ball press-fitting of multiple surfaces of the workpiece on the same equipment, thereby shortening the rhythm of the steel ball press-fitting process and improving product assembly efficiency.

[0054] It should be noted that the workpiece of this embodiment is a rectangular parallelepiped structure, which is preferably a rectangular parallelepiped valve body, which has a first surface and a second surface relative to each other, and four side surfaces arranged circumferentially. Among them, a plurality of first process holes are provided on the first surface or the second surface, and a plurality of second process holes are provided on each side surface. The first positioning portion moves along the first direction and the second direction, so that the plurality of first process holes on the first surface of the workpiece are adjusted to the desired position, so that the steel balls are pressed into each first process hole.

[0055] The second positioning part moves along the first direction and the second direction, so that the multiple second process holes on the side of the workpiece are adjusted to the desired position, so that the steel balls are pressed into each second process hole. The rotation of the second positioning part can adjust the vertical placement angle of the workpiece, that is, adjust the relative position of each side of the workpiece, so as to facilitate the press-fitting of the steel balls into each second process hole on each side.

[0056] In addition, it should be noted that the horizontal placement state mentioned above is that the two relatively large surfaces (the first surface and the second surface) of the workpiece are arranged up and down. Figure 3 As shown in the figure. The vertical placement state is that one pair of side surfaces are arranged up and down. Figure 1 and Figure 2 In addition, it should be noted that the first direction and the second direction specifically refer to the X direction and the Y direction in the figure, respectively.

[0057] The following is a detailed description taking the application of the press-fitting positioning mechanism 4 in a press-fitting device as an example.

[0058] In order to better understand the press-fit positioning mechanism 4 of this embodiment, the structure of the press-fit device is first described. Figures 1 to 4 , and combined with Figure 6 and Figure 7 As shown, the press-fitting device includes a frame 1, a steel ball feeding mechanism 2, a workpiece feeding mechanism 3, a press-fitting mechanism 5, and the above-mentioned press-fitting positioning mechanism 4 arranged on the frame 1.

[0059] Among them, the steel ball feeding mechanism 2 is used to convey multiple steel balls one by one to the press-fitting mechanism 5. The workpiece feeding mechanism 3 is used to grab the workpiece to the press-fitting positioning mechanism 4. The press-fitting positioning mechanism 4 is located below the press-fitting mechanism 5, and can position the workpiece 10a in a horizontal position and the workpiece 10b in a vertical position, so that each first positioning hole and each second positioning hole on the workpiece can correspond to the pressure head 51 of the press-fitting mechanism 5. The press-fitting mechanism 5 includes a pressure head seat 52 and a pressure head 51 slidably arranged on the pressure head seat 52. The pressure head seat 52 has a feeding channel 521 for a single steel ball to enter. The pressure head 51 can press the steel balls located in the feeding channel 521 into each first process hole or each second process hole one by one to block each process hole on the valve body.

[0060] As a preferred embodiment, the press-fit positioning mechanism 4 of this embodiment includes a carrier plate 41 fixedly arranged on the frame 1, which is used to provide an installation basis for the arrangement of the first positioning mechanism 40 and the second positioning mechanism 45. The first positioning mechanism 40 includes a first linear module 42 arranged on the carrier plate 41, a second linear module 43 driven by the first linear module 42 to move in the first direction, and a floating plate 44 driven by the second linear module 43 to move in the second direction. The above-mentioned first positioning part and the second positioning mechanism 45 are both arranged on the floating plate 44.

[0061] At this time, the floating plate 44 is driven by the power of the first linear module 42 and the second linear module 43, and can move along the first direction and the second direction. Figure 1 and Figure 2The first positioning part and the second positioning mechanism 45 can move in the X and Y directions as shown in the figure, and drive the second positioning part in the first positioning part and the second positioning mechanism 45 to move in the X and Y directions. In addition, the first positioning part and the second positioning mechanism 45 are both arranged on the floating plate 44, which is conducive to saving the number of the first linear module 42 and the second linear module 43.

[0062] For details, see Figures 1 to 3 As shown, a first linear module 42 and two X-direction slide rails arranged at intervals are provided on the carrier plate 41, a first mounting plate 411 is provided on the power output end of the first linear module 42, and the first mounting plate 411 is slidably provided on the two X-direction slide rails. The second linear module 43 is fixed on the first mounting plate 411, and a Y-direction slide rail is provided on the first mounting plate 411, a second mounting plate 412 is provided on the power output end of the second linear module 43, and the second mounting plate 412 is slidably provided on the Y-direction slide rail, and the above-mentioned floating plate 44 is connected to the second mounting plate 412, so that, driven by the first linear module 42 and the second linear module 43, the floating plate 44 can move in the first direction and the second direction, that is, can move in the X direction and the Y direction.

[0063] As a preferred embodiment, in this embodiment, the floating plate 44 has an airflow channel 4402, one end of the airflow channel 4402 faces the carrier plate, and the other end of the airflow channel 4402 is used to connect to an external gas source, and the external gas source is used to fill the gas into the airflow channel. Under the push of the gas in the airflow channel 4402, the floating plate 44 can be suspended above the carrier plate 41. At this time, the gas in the airflow channel 4402 can be used to push the floating plate 44 to float above the carrier plate 41, which is conducive to reducing the friction during the movement of the floating plate 44 and reducing the wear of the floating plate 44, thereby helping to improve the positioning accuracy of the workpiece.

[0064] The specific structure of the floating plate 44 of this embodiment is as follows Figure 5 As shown, the floating plate 44 is provided with an air inlet 4401 and an air outlet 4403, and an air flow channel 4402 connecting the air inlet 4401 and the air outlet 4403 is provided inside the floating plate 44, and the air outlet 4403 is arranged toward the carrier plate 41. The air inlet 4401 is used to connect to an external air source, and at this time, the external air source fills the air into the air flow channel 4402 through the air inlet 4401, and then discharges the air through the air outlet 4403, and the air outlet 4403 is arranged toward the carrier plate 41. At this time, the gas in the air flow channel can be used to push the floating plate 44 up a certain gap, thereby reducing the friction force during the movement of the floating plate 44, reducing the wear of the floating plate 44, and improving the positioning accuracy of the workpiece. In specific implementation, the air inlet 4401 is arranged in multiple on opposite sides of the floating plate 44, and the air outlet 4403 is arranged in multiple at the bottom of the floating plate 44, which can help improve the suspension effect of the floating plate 44.

[0065] Depend on Figure 4 Combined with Figures 1 to 3 As shown, in this embodiment, the first positioning portion includes a first positioning end surface 4421 and a tightening block 443 on the floating plate arranged opposite to each other, and the first positioning end surface 4421 and the tightening block 443 are used to clamp and position the side of the workpiece. Through the cooperation of the first positioning end surface 4421 and the tightening block 443, the workpiece 10a in a horizontal position can be well positioned.

[0066] Specifically, a boss 413 is provided on the bearing plate 41, and the floating plate 44 can be suspended above the boss 413, and a bearing block 441 is fixedly provided on the floating plate 44, and a positioning member 442 is provided on the bearing block 441, and the positioning member 442 is in a right angle shape and has a horizontal positioning plate and a vertical positioning plate that are perpendicular to each other. The horizontal positioning plate and the vertical positioning plate are respectively used to position the two adjacent side surfaces of the workpiece. The first positioning end surface 4421 is arranged on the side of the horizontal positioning plate and the vertical positioning plate facing the workpiece. It can be understood that the bearing block 441 can be integrally formed on the floating plate 44, and in this case, the positioning member 442 and the first positioning end surface 4421 are also arranged on the floating plate 44.

[0067] As a further preferred embodiment, a tightening column 4431 is slidably provided on the tightening block 443 of this embodiment, and an air supply channel is provided in the tightening block 443. The tightening column 4431 can be tightened against the side of the workpiece under the push of the gas in the air supply channel. At this time, the tightening block 443 is also provided with an air filling port connected to the air supply channel. By filling the air filling port with a certain pressure of gas and using the push of the gas in the air supply channel, the tightening column 4431 is tightened against the side of the workpiece, which can not only further improve the positioning effect, but also facilitate the loading operation of the workpiece 10a in a horizontal position.

[0068] The second positioning mechanism 45 of this embodiment is as follows Figure 1 , Figure 2 and Figure 4 As shown, the second positioning mechanism 45 includes a vertical plate 451 disposed on the floating plate 44, and a rotation drive device 45 disposed on the vertical plate 451. The rotation device 45 is used to drive the second positioning portion to rotate. The above-mentioned second positioning portion is disposed on the vertical plate 451. At this time, the vertical plate 451 provides an installation base for the second positioning portion and the rotation drive device, and the second positioning portion can move along the first direction and the second direction with the floating plate 44. At the same time, under the action of the rotation drive device 45, the second positioning portion can also rotate, so that the position of each side surface of the workpiece can be adjusted, so that each side surface can correspond to the pressure head 51, and then the second process holes on each side surface can be pressed with steel balls.

[0069] As a preferred embodiment, the second positioning portion of this embodiment includes a second positioning end surface 4521 and a pressing block 453 provided on the vertical plate 451. The second positioning end surface is used to position the first surface of the workpiece, and the pressing block 453 can press the second surface opposite to the first surface. Through the cooperation of the second positioning end surface 4521 provided on the vertical plate 451 and the pressing block 453, the workpiece 10b in a vertically placed state can be well positioned.

[0070] Specifically, the rotation drive device 455 is preferably an angular stroke driver so that the second positioning part can rotate more accurately. The angular stroke driver is fixedly mounted on the vertical plate 451, and the power output end of the angular stroke driver is provided with a third mounting plate 452. The third mounting plate 452 is provided with the above-mentioned second positioning end face 4521 and a clamping block 453. The second positioning end face 4521 is used to position the first surface of the workpiece.

[0071] Moreover, as a preferred embodiment, in this embodiment, a connecting arm 454 is provided on the vertical plate 451, and specifically, the connecting arm 454 is rotatably arranged on the third mounting plate 452, and the aforementioned pressing block 453 is arranged on the connecting arm 454. Moreover, the connecting arm 454 can rotate between a first position and a second position, and when in the first position, the pressing block 453 is pressed against the second surface of the workpiece, and when in the second position, the pressing block 453 is released from pressing against the second surface of the workpiece.

[0072] At this time, the clamping block 453 is set on the rotatable connecting arm 454. On the one hand, when it is in the second position, it can avoid feeding interference caused by the arrangement of the clamping block 453, and facilitate the loading operation of the workpiece 10b in a vertically placed state. On the other hand, when it is in the first position, the clamping block 453 can be pressed on the second surface of the workpiece. The cooperation between the clamping block 453 and the second positioning end face 4521 can well position the workpiece 10b in a vertically placed state.

[0073] During specific implementation, the workpiece 10b in a vertical position is positioned on the second positioning portion, and the third mounting plate 452 is driven by the rotation drive device 455 to rotate 90° clockwise or 90° counterclockwise to adjust the position of each side of the workpiece, so that the steel balls can be pressed into each second process hole on each side of the workpiece.

[0074] See also Figure 8 and Fig. 9 , and combined with Figure 6 and Figure 7As shown, the steel ball feeding mechanism 2 of this embodiment includes a silo 21 having a feed port 212, and the feed port 212 is connected to a feeding channel 521. In specific implementation, the feed port 212 and the feeding channel 521 are connected through a feeding pipe, and the steel balls in the silo 21 are transported to the feeding channel 521 through the feed port 212 and the feeding pipe one by one. In addition, a push plate 22 capable of reciprocating movement is provided in the silo 21. With the movement of the push plate 22, a plurality of steel balls contained in the silo 21 can roll to the feed port 212 in sequence, and be transported to the feeding channel 521 through the feeding pipe.

[0075] In this embodiment, the setting of the silo 21 can provide storage space for the steel balls to be pressed. A push plate 22 is set in the silo 21, and the feed port 212 and the loading channel 521 are connected. In this way, when the push plate 22 moves, the steel balls in the silo 21 roll to the feed port 212 in turn, and are transported to the loading channel 521 through the feeding pipe, thereby improving the loading efficiency and stability of the steel balls.

[0076] As a more preferred implementation, in this embodiment, if Figures 8 to 10 As shown, a sliding channel 211 is provided at the bottom of the silo 21, and the push plate 22 is slidably arranged in the sliding channel 211, and a portion of the push plate 22 can extend into the silo 21 to push the steel ball to the feed port 212. The provision of the sliding channel 211 can facilitate the lifting and guiding movement of the push plate 22, and also facilitates the arrangement and installation of the jacking drive device 23 that drives the push plate 22 to move.

[0077] In a specific implementation, a fourth mounting plate 20 is fixedly provided on the frame 1, the material bin 21 is specifically provided on the fourth mounting plate 20, and a jacking drive device 23 for driving the push plate 22 to move is also provided on the fourth mounting plate 20. In a specific implementation, the jacking drive device 23 can be, for example, a cylinder or an oil cylinder, and a power output end of the jacking drive device 23 is connected to the push plate 22, so as to be able to drive the push plate 22 to move up and down along the sliding channel 211.

[0078] In addition, in order to facilitate the smooth loading of steel balls, in this embodiment, a guide surface 213 is provided in the hopper 21 to guide the steel balls to roll onto the push plate 22. In specific implementation, the guide surface 213 in the hopper 21 is arranged in the circumference of the port of the sliding channel 211, so that the steel balls can gather at the port of the sliding channel 211, that is, gather above the push plate 22. At this time, when the push plate 22 moves up, the steel balls can be pushed to the feeding port 212.

[0079] Moreover, as a preferred implementation, in this embodiment, a guide groove 221 for accommodating a single steel ball is provided on the push plate 22, and the guide groove 221 is arranged downwardly in a direction pointing to the feed port 212. Specifically, as Fig.10 The guide groove 221 is arranged at the top of the push plate 22, so that the individual steel balls can be arranged in sequence for transportation, and the guide groove 221 is arranged to be inclined downward in the direction pointing to the feeding port 212, and the shape characteristics of the steel ball are utilized to make the steel ball smoothly roll along the guide groove 221 to the feeding port 212, thereby further ensuring the reliability of steel ball feeding.

[0080] It is worth noting that, in this embodiment, a plurality of steel ball feeding mechanisms 2 are provided on the frame 1, and each steel ball feeding mechanism 2 is used to feed steel balls of different diameters, so that steel balls can be pressed into process holes of different diameters on the workpiece.

[0081] In addition, the workpiece loading mechanism 3 of the present embodiment specifically includes a manipulator disposed on the frame 1, which is used to grab the workpiece to the first positioning portion, or grab the workpiece from the first positioning portion to the second positioning portion, so as to facilitate subsequent pressing operations and improve workpiece loading efficiency.

[0082] See also Fig.11 , and combined with Figure 6 and Figure 7 As shown, the pressing mechanism 5 of this embodiment includes a linear drive device 53 and a pressure head seat 52 arranged on the frame 1, wherein the power output end of the linear drive device 53 is provided with the above-mentioned pressure head 51, and the pressure head 51 can be partially extended into the pressure head seat 52 to press the steel balls in the feeding channel 521 in the pressure head seat 52 one by one.

[0083] Still viewing Fig.11 As shown, the feeding channel 521 in the pressure head seat 52 has an inclined section 5211 and a vertical section 5212. The steel balls conveyed through the feeding port 212 roll one by one to the intersection of the inclined section 5211 and the vertical section 5212 under their own gravity. The bottom of the pressure head 51 above the vertical section 5212 is provided with an adsorption port, and the steel balls at the intersection of the inclined section 5211 and the vertical section 5212 are fixed to the bottom of the pressure head 51 through negative pressure adsorption. Then, the pressure head 51 is driven downward by the linear drive device 53, so that the steel balls at the intersection of the inclined section 5211 and the vertical section 5212 are pressed into the corresponding process holes.

[0084] It should be noted that the linear drive device 53 of this embodiment can be, for example, an electric cylinder, etc. In addition, the press-fitting mechanism 5 of this embodiment can refer to the structure in the prior art.

[0085] The steel ball press-fitting device of this embodiment, when in use, grabs the workpiece to the first positioning portion or the second positioning portion through the workpiece feeding mechanism 3, and at this time, the workpiece 10a in a horizontal position is positioned through the first positioning portion, or the workpiece 10b in a vertical position is positioned through the second positioning portion, and the relative positions of the first positioning portion and the second positioning portion relative to the press-fitting mechanism 5 are adjusted by moving the floating plate 44, so that each first process hole or each second process hole corresponds to the press head 51 respectively. At the same time, the steel ball feeding device transports multiple steel balls one by one into the feeding channel 521 through the movement of the push plate 22. Then, the steel balls in the feeding channel 521 are fixed one by one at the bottom end of the press head 51 through the press-fitting mechanism 5, and the press head 51 is driven by the linear drive device 53 to move downward, and the steel balls at the bottom end of the press head 51 are press-fitted into the corresponding process holes.

[0086] The press-fitting positioning mechanism 4 of this embodiment can well position both the workpiece 10a in a horizontal position and the workpiece 10b in a vertical position, so that it is convenient to press-fit the steel balls on multiple surfaces of the workpiece on the same device. Moreover, the press-fitting device of this embodiment can press-fit the steel balls on each surface of the workpiece by applying the press-fitting positioning mechanism 4, so that the cycle of the steel ball press-fitting process can be shortened and the product assembly efficiency can be improved.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 press-fitting positioning mechanism, used for positioning a workpiece to be press-fitted with a steel ball, characterized in that: The press-fitting positioning mechanism comprises a first positioning mechanism (40) and a second positioning mechanism (45); The first positioning mechanism (40) comprises a first positioning portion for positioning the workpiece in a horizontal position, and the first positioning portion can move along a first direction and a second direction to adjust the position of each first process hole on the workpiece; The second positioning mechanism (45) has a second positioning portion for positioning the workpiece in a vertically placed state, the second positioning portion can move along the first direction and the second direction to adjust the position of each second process hole on the workpiece, and the second positioning portion can rotate to adjust the vertical placement angle of the workpiece; Wherein, the first direction and the second direction are arranged orthogonally.

2. The press-fit positioning mechanism according to claim 1, characterized in that: The press-fit positioning mechanism comprises a bearing plate (41); The first positioning mechanism (40) comprises a first linear module (42) arranged on the carrier plate (41), a second linear module (43) driven by the first linear module (42) to move along the first direction, and a floating plate (44) driven by the second linear module (43) to move along the second direction; The first positioning portion and the second positioning mechanism (45) are both arranged on the floating plate (44).

3. The press-fit positioning mechanism according to claim 2, characterized in that: The floating plate (44) has an air flow channel (4402) therein, one end of the air flow channel (4402) faces the supporting plate (41), and the other end of the air flow channel (4402) is used to connect to an external air source, and the external air source is used to fill the air flow channel (4402) with gas; Driven by the gas in the air flow channel (4402), the floating plate (44) can be suspended above the supporting plate (41).

4. The press-fit positioning mechanism according to claim 2, characterized in that: The first positioning portion comprises a first positioning end surface (4421) and a clamping block (443) which are arranged relatively on the floating plate, and the first positioning end surface (4421) and the clamping block (443) are used to clamp and position the side surface of the workpiece.

5. The press-fit positioning mechanism according to claim 4, characterized in that: A tightening column (4431) is slidably provided on the tightening block (443), and an air supply channel is provided in the tightening block (443). The tightening column (4431) can be tightened against the side surface of the workpiece under the push of the gas in the air supply channel.

6. The press-fit positioning mechanism according to claim 2, characterized in that: The second positioning mechanism (45) comprises a vertical plate (451) disposed on the floating plate (44), and a rotation driving device (455) disposed on the vertical plate (451); The rotation driving device (455) is used to drive the second positioning portion to rotate, and the second positioning portion is arranged on the vertical plate (451).

7. The press-fit positioning mechanism according to claim 6, characterized in that: The second positioning portion comprises a second positioning end surface (4521) provided on the vertical plate and a pressing block (453); The second positioning end surface (4521) is used to position the first surface of the workpiece, and the pressing block (453) is used to press the second surface opposite to the first surface.

8. The press-fit positioning mechanism according to claim 7, characterized in that: The vertical plate (451) is provided with a connecting arm (454), and the pressing block (453) is provided on the connecting arm (454); The connecting arm (454) is capable of rotating between a first position and a second position, and in the first position, the pressing block (453) is pressed against the second surface, and in the second position, the pressing block (453) is released from the pressure on the second surface.

9. A press-fitting device, characterized in that: It comprises a steel ball feeding mechanism (2), a workpiece feeding mechanism (3), a press-fitting mechanism (5), and the press-fitting positioning mechanism according to any one of claims 1 to 8; The steel ball feeding mechanism (2) is used to transport a plurality of steel balls one by one to the pressing mechanism (5); The workpiece feeding mechanism (3) is used to grab the workpiece to the press-fit positioning mechanism; The press-fitting mechanism (5) is located above the steel ball press-fitting positioning mechanism, and the press-fitting mechanism (5) comprises a press head seat (52) and a press head (51) slidably arranged on the press head seat (52), the press head seat (52) having a feeding channel (521) for a single steel ball to enter, and the press head (51) can press-fit the steel balls in the feeding channel (521) into each of the first process holes or each of the second process holes one by one.

10. The press-fitting device according to claim 9, characterized in that: The steel ball feeding mechanism (2) comprises a material bin (21) having a feeding port (212), wherein the feeding port (212) is connected to the feeding channel (521); A push plate (22) capable of reciprocating movement is provided in the material bin (21), and as the push plate (22) moves, the plurality of steel balls in the material bin (21) can roll to the feed port (212) in sequence and be transported to the loading channel (521).

11. The press-fitting device according to claim 10, characterized in that: The bottom of the silo (21) is provided with a sliding channel (211); The push plate (22) is slidably disposed in the sliding channel (211), and a portion of the push plate (22) can extend into the material bin (21) to push the steel ball to the material supply port (212).

12. The press-fitting device according to claim 11, characterized in that: The silo (21) is provided with a guide surface (213) for guiding the steel ball to roll onto the push plate (22); and / or, The push plate (22) is provided with a guide groove (221) for accommodating a single steel ball, and the guide groove (221) is arranged to be inclined downward in a direction pointing toward the feed port (212).

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