Hydraulic pump shell press-fitting equipment

Abstract

The utility model relates to the technical field of mechanical assembly, and discloses a hydraulic pump shell press-fitting device which comprises an operation panel and a press-fitting mechanism, the operation panel comprises an output rod, and a pressure head device is arranged at one end of the output rod; the pressing head device comprises a first pressing part and a second pressing part, the first pressing part is used for pressing the bearing outer ring into a first mounting hole in the hydraulic pump shell, and the second pressing part is used for pressing the bearing bush copper pin into a second mounting hole in the hydraulic pump shell. During use, a hydraulic pump shell is firstly placed on the operation plate, it is guaranteed that a bearing outer ring is aligned with the first pressing part and the first mounting hole in the first direction, and a bearing bush copper pin is aligned with the second pressing part and the second mounting hole in the first direction; and then the press-fitting mechanism is started until the bearing outer ring is pressed into the first mounting hole by the first pressing part and the bearing bush copper pin is pressed into the second mounting hole by the second pressing part, so that the bearing outer ring and the bearing bush copper pin can be pressed at the same time, the press-fitting efficiency is improved, and the labor force is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical assembly, in particular to a hydraulic pump housing press-fitting device. Background Art

[0002] The hydraulic pump is the core part of the hydraulic equipment, and is usually equipped with a housing to support and protect the hydraulic pump. When assembling the hydraulic pump, in order to ensure the reliability of the assembly, the outer ring of the bearing and the copper pin of the bearing bush need to be pressed tightly onto the hydraulic pump housing by a press machine.

[0003] In the prior art, the press-fitting of the bearing outer ring and the bearing copper pin of the hydraulic pump housing requires two special press-fitting machines, that is, after the bearing outer ring is pressed, the hydraulic pump housing needs to be manually transferred to the bearing copper pin press station, and then the bearing copper pin is installed. This method is not only labor-intensive, but also has low press-fitting efficiency.

[0004] Therefore, how to save labor while improving the press-fitting efficiency of the bearing outer ring and the bearing copper pin of the hydraulic pump housing has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The purpose of the utility model is to at least solve how to improve the press-fitting efficiency of the outer ring of the bearing and the copper pin of the bearing bush of the hydraulic pump housing while saving labor. This purpose is achieved through the following technical solutions:

[0006] In the first aspect, the utility model proposes a hydraulic pump housing press-fitting device, which includes: an operating table, including a base and an operating panel arranged on the base, the operating panel is used to carry the hydraulic pump housing; and a press-fitting mechanism, including an output rod, the output rod is located on the side of the operating panel away from the base, a pressing head device is provided at one end of the output rod, the output rod is configured to be able to move along a first direction, and the first direction is the arrangement direction of the pressing mechanism and the operating panel; the pressing head device includes a first pressing portion and a second pressing portion, the first pressing portion is used to press the outer ring of the bearing onto the first mounting portion on the hydraulic pump housing hole, and the second clamping part is used to press the copper pin of the bearing into the second mounting hole on the hydraulic pump housing; the pressing mechanism can switch between a first state and a second state, when the pressing mechanism is in the first state relative to the hydraulic pump housing, the hydraulic pump housing is in a pressing position, the first clamping part and the first mounting hole are arranged along the first direction, and the second clamping part and the second mounting hole are arranged along the first direction; when the pressing mechanism is in the second state relative to the hydraulic pump housing, the hydraulic pump housing is in a pressing position, the outer ring of the bearing is pressed into the first mounting hole by the first clamping part, and the copper pin of the bearing is pressed into the second mounting hole by the second clamping part.

[0007] When using this hydraulic pump housing press-fitting equipment, first place the hydraulic pump housing on the operating panel to ensure that the hydraulic pump housing is in the press-fitting position (i.e., the first pressing part and the first mounting hole are aligned in the first direction, and the second pressing part and the second mounting hole are aligned in the first direction), and align the outer ring of the bearing with the first pressing part and the first mounting hole in the first direction, and align the copper pin of the bushing with the second pressing part and the second mounting hole in the first direction; then start the press-fitting mechanism, so that the output rod moves along the first direction to drive the pressure head device to move in the direction of the hydraulic pump housing, until the outer ring of the bearing is pressed into the first mounting hole by the first pressing part, and the copper pin of the bushing is pressed into the second mounting hole by the second pressing part, at which time the hydraulic pump housing is in the press-fitting position, and the assembly of the outer ring of the bearing and the copper pin of the bushing is completed. Therefore, this hydraulic pump housing press-fitting equipment only needs to move the output rod along the first direction to realize the simultaneous press-fitting of the outer ring of the bearing and the copper pin of the bushing, thereby improving the press-fitting efficiency and saving labor.

[0008] In some embodiments of the utility model, the pressing mechanism also includes: a bracket, installed on the operating table, the bracket has a crossbeam, the crossbeam is located on the side of the operating plate away from the base, a pressing space is formed between the crossbeam and the operating plate, the crossbeam has a guide hole, and the guide hole extends along the first direction; a press, installed on the crossbeam, the output rod is connected to the press, the press is used to drive the output rod to drive the pressure head device to move along the first direction in the pressing space; a guide rod is inserted into the guide hole; and a connecting plate, the connecting plate is located on the side of the crossbeam close to the operating table, and the guide rod is connected to the output rod through the connecting plate.

[0009] In some embodiments of the utility model, a connecting sleeve is provided at one end of the output rod, the connecting sleeve is connected to the side of the connecting plate away from the operating table, and the connecting sleeve has an open groove; a through hole is provided on the connecting plate, and the pressure head device is connected to the connecting sleeve through a connecting seat, the connecting seat includes a base and a connecting member, the base is arranged on the side of the connecting plate away from the connecting sleeve, the connecting member is passed through the through hole, the first end of the connecting member is fixedly connected to the base, and the second end of the connecting member is clamped in the open groove, the open groove is used to limit the relative movement of the connecting member and the connecting sleeve in a first direction, and the second end of the connecting member has a gap between its own circumferential direction and the inner wall of the open groove; the pressure head device includes: a mounting plate, having a first hole and a second hole; a connecting rod, connected to the mounting plate, the connecting rod is passed through the first hole, the first end of the connecting rod is detachably connected to the base, the second end of the connecting rod is provided with a pressure head body for installing the outer ring of the bearing, and the pressure head body constitutes a first clamping part; and a press rod, connected to the mounting plate, the press rod is passed through the second hole, and the press rod constitutes a second clamping part.

[0010] In some embodiments of the present invention, the inner wall of the second hole is provided with an internal thread, the outer wall of the press-fit rod has an external thread matching the internal thread, and the press-fit rod is fixed to the mounting plate by a fastening nut.

[0011] In some embodiments of the utility model, an annular groove is provided on the outer wall of the second end of the connecting rod, the pressure head body has a pressure head interface, the pressure head interface is sleeved on the outer wall of the second end of the connecting rod, an elastic gasket is provided between the annular groove and the pressure head interface, the inner ring of the elastic gasket abuts against the annular groove, and the outer ring of the elastic gasket abuts against the inner wall of the pressure head interface.

[0012] In some embodiments of the utility model, a pressure block is provided on the operating panel, and when the hydraulic pump housing is in the press-fitting station, the hydraulic pump housing and the pressure block are arranged along a first direction.

[0013] In some embodiments of the present invention, the hydraulic pump housing press-fitting equipment further comprises a buffer mechanism; when the hydraulic pump housing is in the press-fitting station, the buffer mechanism is located between the hydraulic pump housing and the pressure block along the first direction.

[0014] In some embodiments of the utility model, the hydraulic pump housing pressing equipment also includes: a slide plate; two positioning plates, both installed on the slide plate, one positioning plate having a first installation position for installing a hydraulic pump housing, and the other positioning plate having a second installation position for installing another hydraulic pump housing; and a moving mechanism, used to drive the slide plate to move along a second direction, the second direction is parallel to the plane where the operating table is located, and the second direction is perpendicular to the first direction; the moving mechanism is configured to be able to drive the two hydraulic pump housings to the pressing station in sequence.

[0015] In some embodiments of the utility model, the hydraulic pump housing pressing equipment includes a pressure block and a buffer mechanism, there are two buffer mechanisms and two pressure blocks, and the two buffer mechanisms, the two pressure blocks and the two positioning plates are arranged in a one-to-one correspondence; in a group of corresponding buffer mechanisms, pressure blocks and positioning plates: the buffer mechanism includes a buffer plate, the buffer plate is located between the positioning plate and the slide plate, the buffer plate is provided with abutment columns and buffer components, the slide plate is provided with avoidance holes for passing the abutment columns, the abutment columns are used to abut against the pressure blocks, one end of the buffer component is connected to the positioning plate, and the other end of the buffer component is used to abut against the slide plate.

[0016] In some embodiments of the utility model, in a group of corresponding buffer mechanisms, pressure blocks and positioning plates: the buffer assembly of the buffer mechanism includes a plurality of elastic members, each of which can be extended and compressed along a first direction, one end of each elastic member is connected to the positioning plate, and the other end of each elastic member is used to abut against the slide plate, and the plurality of elastic members are evenly spaced and distributed on the positioning plate.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the structure of a hydraulic pump housing press-fitting device provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a part of the structure at an angle of a press-fitting mechanism in a press-fitting device for a hydraulic pump housing provided by an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of a part of the structure of the press-fitting mechanism in the press-fitting device for the hydraulic pump housing provided by an embodiment of the utility model at another angle;

[0022] Figure 4 A schematic structural diagram of a pressing head device in a hydraulic pump housing press-fitting device provided by an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the connection relationship between the connecting rod and the pressing head body in the hydraulic pump housing pressing device provided by the embodiment of the utility model;

[0024] Figure 6 A partial structural schematic diagram of a hydraulic pump housing press-fitting device provided in an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of the structure of a buffer mechanism in a hydraulic pump housing press-fitting device provided by an embodiment of the utility model;

[0026] Figure 8 A partial structural schematic diagram of a buffer mechanism in a hydraulic pump housing press-fitting device provided in an embodiment of the utility model.

[0027] The reference numerals are as follows:

[0028] 100. Hydraulic pump housing press-fitting equipment;

[0029] 1. Operation table; 11. Base; 12. Operation panel; 121. Control button; 122. Adjustment panel;

[0030] 2. Pressing mechanism; 21. Pressing head device; 211. Mounting plate; 212. Connecting rod; 2121. Annular groove; 2122. Mounting groove; 213. Pressing head body; 2131. Pressing head interface; 2132. Positioning column; 214. Pressing rod; 215. Fastening nut; 216. Fastening screw; 22. Crossbeam; 221. Through hole; 23. Longitudinal beam; 231. Operation screen; 232. Safety grating; 24. Press; 25. Guide rod; 26. Connecting plate; 27. Docking sleeve;

[0031] 3. Connecting seat; 31. Base; 32. Connecting piece;

[0032] 4. Pressure bearing block;

[0033] 5. Buffer mechanism; 51. Buffer plate; 52. Abutment column; 53. Elastic member; 531. Guide column; 532. Spring; 54. Connecting bearing;

[0034] 6. Slide plate;

[0035] 7. Positioning plate; 71. First installation station; 72. Second installation station;

[0036] 8. Moving mechanism; 81. Guide rail; 82. Limiting plate;

[0037] 9. Front shell. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0039] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0040] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0041] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0042] Figure 1 A schematic diagram of the structure of a hydraulic pump housing press-fitting device provided in an embodiment of the utility model; Figure 2 A schematic diagram of a part of the structure at an angle of a press-fitting mechanism in a press-fitting device for a hydraulic pump housing provided by an embodiment of the utility model; Figure 3 A schematic diagram of a part of the structure of the press-fitting mechanism in the press-fitting device for the hydraulic pump housing provided by an embodiment of the utility model at another angle; Figure 4 A schematic diagram of the structure of the pressure head device in the hydraulic pump housing press-fitting device provided by the embodiment of the utility model; Figures 1 to 4The embodiment of the utility model provides a hydraulic pump housing press-fitting device 100, which includes: an operating table 1, including a base 11 and an operating panel 12 arranged on the base 11, the operating panel 12 is used to carry the hydraulic pump housing; and a press-fitting mechanism 2, including an output rod (not shown in the figure), the output rod is located on the side of the operating panel 12 away from the base 11, and a pressing head device 21 is provided at one end of the output rod, and the output rod is configured to be able to move along a first direction, and the first direction is the arrangement direction of the press-fitting mechanism 2 and the operating panel 12; the pressing head device 21 includes a first pressing part and a second pressing part, the first pressing part is used to press the outer surface of the bearing The ring is pressed into the first mounting hole on the hydraulic pump housing, and the second clamping part is used to press the bearing copper pin into the second mounting hole on the hydraulic pump housing; the pressing mechanism 2 can switch between a first state and a second state. When the pressing mechanism 2 is in the first state relative to the hydraulic pump housing, the hydraulic pump housing is in a pressing position, the first clamping part and the first mounting hole are arranged along the first direction, and the second clamping part and the second mounting hole are arranged along the first direction; when the pressing mechanism 2 is in the second state relative to the hydraulic pump housing, the hydraulic pump housing is in a clamping position, the bearing outer ring is pressed into the first mounting hole by the first clamping part, and the bearing copper pin is pressed into the second mounting hole by the second clamping part.

[0043] In this embodiment, when the hydraulic pump housing pressing device 100 is in use, first, the hydraulic pump housing is placed on the operating panel 12 to ensure that the hydraulic pump housing is in the pressing position (that is, the first pressing part and the first mounting hole are aligned in the first direction, and the second pressing part and the second mounting hole are aligned in the first direction), and the outer ring of the bearing is respectively aligned with the first pressing part and the first mounting hole in the first direction, and the copper pin of the bearing is respectively aligned with the second pressing part and the second mounting hole in the first direction; then, the pressing mechanism 2 is started to move the output rod along the first direction to drive the pressure head device 21 to move toward the direction of the hydraulic pump housing, until the outer ring of the bearing is pressed into the first mounting hole by the first pressing part, and the copper pin of the bearing is pressed into the second mounting hole by the second pressing part. At this time, the hydraulic pump housing is in the pressing position, and the assembly of the outer ring of the bearing and the copper pin of the bearing is completed.

[0044] Therefore, the hydraulic pump housing press-fitting device 100 can simultaneously press-fit the bearing outer ring and the bearing bush copper pin only by moving the output rod along the first direction, thereby improving the press-fitting efficiency and saving labor.

[0045] It should be noted that the number of the first clamping part and the second clamping part is not limited in the present embodiment. Generally, there is a first mounting hole and two second mounting holes on the hydraulic pump housing. Therefore, one first clamping part and two second clamping parts can be provided in the present embodiment. The specific number of the first clamping part and the second clamping part is not limited, and the two can respectively correspond to the number and position relationship of the first mounting holes and the second mounting holes on the hydraulic pump housing, which depends on the actual working conditions.

[0046] like Figure 2 and Figure 3 As shown, according to an optional embodiment of the utility model, the pressing mechanism 2 also includes: a bracket, installed on the operating table 1, the bracket has a crossbeam 22, the crossbeam 22 is located on the side of the operating panel 12 away from the base 11, a pressing space is formed between the crossbeam 22 and the operating panel 12, the crossbeam 22 has a guide hole, and the guide hole extends along the first direction; a press 24, installed on the crossbeam 22, an output rod (not shown in the figure) is connected to the press 24, the press 24 is used to drive the output rod to drive the pressure head device 21 to move along the first direction in the pressing space; a guide rod 25, which is inserted into the guide hole; and a connecting plate 26, the connecting plate 26 is located on the side of the crossbeam 22 close to the operating table 1, and the guide rod 25 is connected to the output rod through the connecting plate 26.

[0047] The output rod may be installed inside the press 24 , that is, an output hole is provided at the bottom of the press 24 , and the output rod moves along the first direction through the output hole.

[0048] In addition, refer to Figure 1 The bracket may further include a longitudinal beam 23, one end of the longitudinal beam 23 is fixedly connected to the cross beam 22, and the other end can be fixedly connected to the operating panel 12, so as to fix the cross beam 22 to the side of the operating panel 12 away from the base 11; the specific number of the longitudinal beams 23 is not limited and can be determined according to actual needs. For example, two longitudinal beams 23 can be set to improve the stability of the connection between the cross beam 22 and the operating panel 12.

[0049] In addition, a through hole 221 may be provided on the cross beam 22, and the press 24 is passed through the through hole 221. The opening of the press 24 is located at one end of the press 24 close to the operating table 1, so that the output rod can extend and retract from the opening, thereby enabling the output rod to drive the press head device 21 to move along the first direction in the pressing space.

[0050] In addition, there can be two guide rods 25, and one guide rod 25 can be set on both sides of the output rod, that is, one guide rod 25 is set at each end of the connecting plate 26, so as to further improve the stability of the connection between the guide rod 25 and the output rod and ensure the guiding effect.

[0051] In this embodiment, when the pressing mechanism 2 is in the first state relative to the hydraulic pump housing, the outer ring of the bearing is aligned with the first clamping part and the first mounting hole in the first direction, and the copper pin of the bearing is aligned with the second clamping part and the second mounting hole in the first direction; then, the press 24 is started, and the press 24 drives the output rod to drive the pressure head device 21 to move along the first direction in the pressing space until the outer ring of the bearing is pressed into the first mounting hole by the first clamping part, and the copper pin of the bearing is pressed into the second mounting hole by the second clamping part. At this time, the hydraulic pump housing is in the pressing position, and the assembly of the outer ring of the bearing and the copper pin of the bearing is completed.

[0052] Therefore, this setting method can conveniently realize the installation of the press 24 and the driving of the pressure head device 21, and the movement of the output rod can be limited by the setting of the guide rod 25, so that the output rod can more accurately drive the pressure head device 21 to move along the first direction, thereby further ensuring the efficiency of simultaneous pressing of the bearing outer ring and the bearing copper pin.

[0053] refer to Figures 1 to 4 According to an optional embodiment of the utility model, a connection sleeve 27 is provided at one end of the output rod, and the connection sleeve 27 is connected to the side of the connecting plate 26 away from the operating table 1, and the connection sleeve 27 has an open groove; a through hole is provided on the connecting plate 26, and the pressure head device 21 is connected to the connection sleeve 27 through the connecting seat 3, and the connecting seat 3 includes a base 31 and a connecting member 32, the base 31 is arranged on the side of the connecting plate 26 away from the connection sleeve 27, and the connecting member 32 is penetrated in the through hole, and the first end of the connecting member 32 is fixedly connected to the base 31, and the second end of the connecting member 32 is clamped in the open groove, and the open groove is used to limit the connection member 32 and the connection sleeve 27 in the first direction. Upward relative movement, and the second end of the connecting piece 32 has a gap between its own circumferential direction and the inner wall of the open groove; the pressing head device 21 includes: a mounting plate 211, having a first hole and a second hole; a connecting rod 212, connected to the mounting plate 211, the connecting rod 212 is passed through the first hole, the first end of the connecting rod 212 is detachably connected to the base 31, and the second end of the connecting rod 212 is provided with a pressing head body 213 for installing the outer ring of the bearing, and the pressing head body 213 constitutes a first clamping part; and a press rod 214, connected to the mounting plate 211, the press rod 214 is passed through the second hole, and the press rod 214 constitutes a second clamping part.

[0054] As mentioned above, the number of the first pressing part and the second pressing part is not limited. In this embodiment, one first pressing part and two second pressing parts are also taken as an example. It is easy to understand that in this embodiment, there can be two second holes, and the two second holes are respectively located on both sides of the first hole, and each second hole is penetrated by a pressing rod 214. Figure 4 As shown, a bearing outer ring and two bearing copper pins are installed on a hydraulic pump housing at the same time.

[0055] In addition, continue to refer to Figure 4A plurality of positioning posts 2132 may be provided at one end of the pressure head body 213 away from the connecting rod 212, and the plurality of positioning posts 2132 are arranged at intervals around the circumferential direction of the pressure head body 213. Before press-fitting, the outer ring of the bearing may be sleeved on the end of the pressure head body 213 away from the connecting rod 212, and the pressure head body 213 may be clamped by the plurality of positioning posts 2132. The specific number of the positioning posts 2132 is not limited, and may be three, for example. The arrangement of the three positioning posts 2132 ensures the stability of the clamping connection, while the number is not too large, and is convenient for installation.

[0056] In the present embodiment, in the pressing step, the output rod drives the pressing head device 21 downward in the first direction to press the outer ring of the bearing and the copper pin of the bearing bushing against the hydraulic pump housing. It is easy to understand that this process requires the axial direction of the outer ring of the bearing to be precisely aligned with the axis of the first mounting hole, and the axis of the copper pin of the bearing bushing to be precisely aligned with the axis of the second mounting hole.

[0057] Therefore, in this embodiment, a connection sleeve 27 is provided at one end of the output rod, and an open groove is provided on the connection sleeve 27. When the output rod is connected to the pressure head device 21, the first end of the connecting rod 212 is configured to be detachably connected to the base 31 of the connecting seat 3, and the first end of the connecting member 32 of the connecting seat 3 is fixedly connected to the base 31, and the second end of the connecting member 32 is clamped in the open groove, and the open groove is used to limit the relative movement of the connecting member 32 and the connection sleeve 27 in the first direction (that is, the connecting member 32 is suspended in the open groove, so that the pressure head device 21 will not be separated from the output rod along the first direction); Since there is a gap between the second end of the connecting piece 32 and the inner wall of the open groove in its circumferential direction, the existence of the gap allows the pressing head device 21 to float in its own circumferential direction relative to the output rod after the output rod and the pressing head device 21 are assembled. This allows the pressing head device 21 to be able to be adjusted to a certain extent relative to the axis of the first mounting hole and the second mounting hole, thereby achieving the ability to adjust the relative position of the axial direction of the outer ring of the bearing and the axis of the first mounting hole, and the ability to adjust the relative position of the bearing copper pin and the axis of the second mounting hole.

[0058] Therefore, this setting method of the present embodiment can improve the matching accuracy of the two sets of relative positions, namely the relative position between the axial direction of the bearing outer ring and the axis of the first mounting hole, and the relative position between the bearing copper pin and the axis of the second mounting hole, thereby further improving the pressing efficiency of the bearing outer ring and the bearing copper pin.

[0059] like Figure 4 As shown, according to an optional embodiment of the present invention, the inner wall of the second hole is provided with an internal thread, the outer wall of the press-fitting rod 214 has an external thread matching the internal thread, and the press-fitting rod 214 is fixed to the mounting plate 211 by a fastening nut 215.

[0060] In this embodiment, since the distances between the bearing outer ring mounting surface and the bearing copper pin mounting surface in the first direction may be different in different hydraulic pump housings, in order to further ensure that different hydraulic pump housings can achieve the simultaneous pressing of the bearing outer ring and the bearing copper pin into the hydraulic pump housing by the hydraulic pump housing pressing equipment 100, the pressing rod 214 is arranged so that the relative position of the pressing rod 214 and the mounting plate 211 in the first direction is adjustable.

[0061] Therefore, the hydraulic pump housing press-fitting equipment 100 provided in this embodiment can adjust the relative position of the press-fitting rod 214 and the mounting plate 211 in the first direction by adjusting the depth of the press-fitting rod 214 screwed in the second hole, and then fix the press-fitting rod 214 to the mounting plate 211 by tightening the fastening nut 215, thereby realizing a hydraulic pump housing suitable for having different distances between the bearing outer ring mounting surface and the bearing copper pin mounting surface in the first direction.

[0062] Figure 5 Schematic diagram of the connection relationship between the connecting rod and the pressure head body in the hydraulic pump housing press-fitting device provided by the embodiment of the utility model, with reference to Figure 4 and Figure 5 According to an optional embodiment of the utility model, the outer wall of the second end of the connecting rod 212 is provided with an annular groove 2121, the pressure head body 213 has a pressure head interface 2131, the pressure head interface 2131 is sleeved on the outer wall of the second end of the connecting rod 212, and an elastic gasket is provided between the annular groove 2121 and the pressure head interface 2131, the inner ring of the elastic gasket abuts against the annular groove 2121, and the outer ring of the elastic gasket abuts against the inner wall of the pressure head interface 2131.

[0063] In this embodiment, as mentioned above, during the press-fitting process of the bearing outer ring and the bushing copper pin, the axial direction of the bearing outer ring needs to be precisely aligned with the axis of the first mounting hole, and the axis of the bushing copper pin needs to be precisely aligned with the axis of the second mounting hole. Therefore, in order to ensure the accuracy of the press-fitting, the pressing head device 21 needs to have a certain floating range in its own circumferential direction relative to the first hole and the second hole.

[0064] Therefore, in this embodiment, an elastic gasket is provided between the annular groove 2121 and the pressure head interface 2131. Since the elastic gasket has a certain thickness and can realize elastic deformation, during press-fitting, in the circumferential direction of the second end of the connecting rod 212, the inner wall of the pressure head interface 2131 can cooperate with the outer wall of the second end of the connecting rod 212 to squeeze the elastic gasket, so that the elastic gasket is elastically deformed in the circumferential direction of the second end of the connecting rod 212 to adjust the position of the pressure head body 213 on its own axis, thereby realizing that the relative position of the axial direction of the outer ring of the bearing and the axis of the first mounting hole can be adjusted, and the relative position of the bearing copper pin and the axis of the second mounting hole can be adjusted.

[0065] Continue to refer Figure 5 There may be two annular grooves 2121, and the two annular grooves 2121 may be spaced apart along the first direction. Thus, two elastic washers are provided between the annular grooves 2121 and the pressure head interface 2131, thereby further improving the friction between the pressure head body 213 and the connecting rod 212, and improving the stability of the outer wall of the pressure head interface 2131 sleeved on the second end of the connecting rod 212.

[0066] In addition, a mounting groove 2122 can be set between the two annular grooves 2121, and the mounting groove 2122 is also set around the outer wall of the second end of the connecting rod 212. The pressure head interface 2131 is then fixed to the mounting groove 2122 by the fastening screw 216 to ensure the stability of the connection between the pressure head body 213 and the connecting rod 212, and the number of the fastening screws 216 can be multiple to further enhance the stability of the connection between the pressure head body 213 and the connecting rod 212.

[0067] Figure 6 A partial structural diagram of a hydraulic pump housing press-fitting device provided by an embodiment of the utility model, referring to Figure 1 and Figure 6 According to an optional embodiment of the utility model, a pressure block 4 is provided on the operating panel 12. When the hydraulic pump housing is in the press-fitting position, the hydraulic pump housing and the pressure block 4 are arranged along a first direction.

[0068] In this embodiment, the pressure block 4 is provided to bear the pressure output by the pressure head device 21 on the hydraulic pump housing during the press-fitting process, and plays a role in protecting the operating panel 12 to a certain extent.

[0069] Continue to refer Figure 1 and Figure 6 According to an optional embodiment of the utility model, the hydraulic pump housing press-fitting device 100 further includes a buffer mechanism 5; when the hydraulic pump housing is in the press-fitting station, along the first direction, the buffer mechanism 5 is located between the hydraulic pump housing and the pressure block 4.

[0070] In this embodiment, the buffer mechanism 5 can also bear part of the pressure output by the pressing head device 21 to the hydraulic pump housing during the press-fitting process.

[0071] like Figure 1 and Figure 6As shown, according to an optional embodiment of the utility model, the hydraulic pump housing pressing equipment 100 also includes: a slide plate 6; two positioning plates 7, both installed on the slide plate 6, one positioning plate 7 has a first installation station 71 for installing a hydraulic pump housing, and the other positioning plate 7 has a second installation station 72 for installing another hydraulic pump housing; and a moving mechanism 8, used to drive the slide plate 6 to move along a second direction, the second direction is parallel to the plane where the operating table 1 is located, and the second direction is perpendicular to the first direction; the moving mechanism 8 is configured to be able to drive the two hydraulic pump housings to the pressing stations in sequence.

[0072] The moving mechanism 8 may include a guide rail 81 extending in the second direction, a lead screw is provided in the guide rail 81, a slider is provided on the lead screw, the slider is driven by a motor, and the slider is connected to the slide plate 6. During operation, the motor only needs to be started to move the slider along the guide rail 81, so as to drive the slide plate 6 to move in the second direction, thereby driving the two hydraulic pump housings to the press-fitting station in sequence.

[0073] In addition, a limit plate 82 may be provided at one end of the guide rail 81 to prevent the slide plate 6 from moving out of the guide rail 81 and thereby causing the slide plate to fall from the operating table 1 together with the hydraulic pump housing, thereby ensuring the safety of press-fitting.

[0074] In addition, when assembling a complete hydraulic pump housing, the complete hydraulic pump housing is usually divided into two hydraulic pump housings for assembly. Each hydraulic pump housing needs to be assembled with a bearing outer ring and a bearing copper pin. For the convenience of description, the following text will refer to one part of the hydraulic pump housing as the front housing 9 and the other part of the hydraulic pump housing as the rear housing as needed.

[0075] In this embodiment, the front housing 9 is first installed at the first installation station 71, and the rear housing is installed at the second installation station 72, and then the moving mechanism 8 is started to drive the slide plate 6 to move in the second direction, and the front housing 9 is moved to the pressing position (that is, the first pressing portion and the first installation hole of the front housing 9 are aligned in the first direction, and the second pressing portion and the second installation hole of the front housing 9 are aligned in the first direction). After that, the driving of the slide plate 6 is stopped, and then the pressing mechanism 2 is started to move the output rod in the first direction, thereby driving the pressing head device 21 to move in the direction of the front housing 9, until the outer ring of the bearing is pressed onto the first mounting hole of the front housing 9 by the first pressing portion. A mounting hole and a bearing copper pin are pressed into the second mounting hole of the front housing 9 by the second pressing part. At this time, the front housing 9 is in the pressing position, and the assembly of the bearing outer ring and the bearing copper pin of the front housing 9 is completed; then the moving mechanism 8 is started again to drive the slide plate 6 to continue to move along the second direction to move the rear housing to the pressing position (that is, the first pressing part and the first mounting hole of the rear housing are aligned in the first direction, and the second pressing part and the second mounting hole of the rear housing are aligned in the first direction), and then the pressing mechanism 2 is started to complete the assembly of the bearing outer ring and the bearing copper pin of the rear housing. The specific process is the same as when assembling the front housing 9 and will not be repeated.

[0076] Therefore, in this arrangement of the embodiment, for the same complete housing of the hydraulic pump, the front housing 9 and the rear housing can be simultaneously installed at different installation stations on the slide plate 6, and then the front housing 9 and the rear housing are driven by the moving mechanism 8 to reach the press-fitting station respectively, and the outer ring of the bearing and the copper pin of the bearing bush can be simultaneously press-fitted regardless of the front housing 9 or the rear housing. This method only requires one positioning, and for the same complete housing of the hydraulic pump, there is no need to replace the positioning tooling, which reduces the labor intensity and ensures the efficiency of press-fitting.

[0077] Figure 7 A schematic diagram of the structure of a buffer mechanism in a hydraulic pump housing press-fitting device provided by an embodiment of the utility model; Figure 8 A partial structural diagram of a buffer mechanism in a hydraulic pump housing press-fitting device provided by an embodiment of the utility model; Figure 7 and Figure 8 Specifically, according to an optional embodiment of the utility model, when the hydraulic pump housing pressing device 100 includes a pressure block 4 and a buffer mechanism 5, there are two buffer mechanisms 5 and two pressure blocks 4, and the two buffer mechanisms 5, the two pressure blocks 4 and the two positioning plates 7 are arranged in a one-to-one correspondence; in a group of corresponding buffer mechanisms 5, pressure blocks 4 and positioning plates 7: the buffer mechanism 5 includes a buffer plate 51, the buffer plate 51 is located between the positioning plate 7 and the slide plate 6, the buffer plate 51 is provided with abutment columns 52 and a buffer assembly, the slide plate 6 is provided with an avoidance hole for penetrating the abutment columns 52, the abutment columns 52 are used to abut with the pressure block 4, one end of the buffer assembly is connected to the positioning plate 7, and the other end of the buffer assembly is used to abut with the slide plate 6.

[0078] In this embodiment, during press-fitting, the pressing head device 21 presses the hydraulic pump housing downward along the first direction, and then the abutment column 52 passes through the avoidance hole to abut against the pressure block 4, and the buffer assembly also abuts against the slide plate 6. The buffer mechanism 5 and the pressure block 4 both bear part of the pressure, thereby preventing all the force applied by the pressing head device 21 along the first direction from being applied to the moving mechanism 8, thereby protecting the moving mechanism 8.

[0079] Continue to refer Figure 7 and Figure 8 According to an optional embodiment of the utility model, in a group of corresponding buffer mechanisms 5, pressure blocks 4 and positioning plates 7: the buffer assembly of the buffer mechanism 5 includes a plurality of elastic members 53, each elastic member 53 can be extended and compressed along a first direction, one end of each elastic member 53 is connected to the positioning plate 7, and the other end of each elastic member 53 is used to abut against the slide plate 6, and the plurality of elastic members 53 are evenly spaced and distributed on the positioning plate 7.

[0080] Among them, the elastic part 53 may include a guide part and an elastic part, the guide part may be a guide column 531 extending along the first direction, the elastic part is a spring 532, the spring 532 can be stretched and compressed along the first direction, and the spring 532 is sleeved on the outer side of the guide part; the slide plate 6 is provided with a blind hole for abutting with the guide column 531 to realize the abutment between the buffer assembly and the slide plate 6.

[0081] Specifically, if Figure 8 As shown, the buffer mechanism 5 may further include a connecting bearing 54 . A bearing mounting hole is provided on the positioning plate 7 . The connecting bearing 54 is passed through the connecting mounting hole. The guide column 531 is connected to the buffer plate 51 via the connecting bearing 54 .

[0082] In this embodiment, the provision of the elastic member 53 can buffer the force applied by the pressure head to the hydraulic pump housing along the first direction, thereby further reducing the rigidity force on the slide plate 6 and the bearing block, and further more effectively protecting the moving mechanism 8.

[0083] In addition, it should be noted that, in order to further improve the convenience and safety of operation, the hydraulic pump housing press-fitting device 100 provided in the embodiment of the utility model can also be provided with the following devices according to actual working conditions:

[0084] The operating screen 231 can be installed on the longitudinal beam 23, such as Figures 1 to 3 As shown; the operation screen 231 is used to edit the control logic of the entire operating system, and the operation screen 231 can also be configured to drive the action of the pressing mechanism 2, and the operation screen 231 can also be configured as a pressure-displacement curve for the pressing mechanism 2, so that the operator can monitor the displacement value and the pressure value provided by the pressing head device 21 during the pressing process in real time.

[0085] Safety grating 232 can be installed on the longitudinal beam 23, such as Figures 1 to 3 As shown; the safety grating 232 is connected to the pressing mechanism 2 by signal; when someone or an external object enters the pressing space during the pressing process, the safety grating 232 can send a signal to the pressing mechanism 2 to stop pressing further to prevent safety hazards.

[0086] The control button 121 can be set on the operation panel 12, such as Figure 1 and Figure 6 As shown; the control button 121 is used to control the action of the driving pressing mechanism 2 and the moving mechanism 8 to enhance the operator's convenience in operating the hydraulic pump housing pressing device 100.

[0087] The adjustment plate 122 can be arranged on the operation plate 12, such as Figure 1 and Figure 6As shown; the adjustment plate 122 can be fixedly connected to the longitudinal beam 23 of the bracket by screws, and the position of the bracket in the third direction can be adjusted by tightening the screws, so that the relative position of the pressure head device 21 and the hydraulic pump housing can be adjusted more accurately, and the third direction is parallel to the plane where the operating plate 12 is located, and the third direction is perpendicular to the second direction. It is easy to understand that when there are two longitudinal beams 23, two adjustment plates 122 are also set accordingly.

[0088] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A hydraulic pump housing press-fitting device, characterized in that: include: An operating table, comprising a base and an operating panel arranged on the base, wherein the operating panel is used to carry a hydraulic pump housing; as well as The press-fitting mechanism comprises an output rod, the output rod is located on a side of the operating panel away from the base, a pressing head device is provided at one end of the output rod, the output rod is configured to be movable along a first direction, the first direction being the arrangement direction of the press-fitting mechanism and the operating panel; the pressing head device comprises a first pressing portion and a second pressing portion, the first pressing portion is used to press-fit the outer ring of the bearing into the first mounting hole on the hydraulic pump housing, and the second pressing portion is used to press-fit the copper pin of the bearing bush into the second mounting hole on the hydraulic pump housing; The press-fitting mechanism can switch between a first state and a second state. When the press-fitting mechanism is in the first state relative to the hydraulic pump housing, the hydraulic pump housing is in a press-fitting position, the first clamping portion and the first mounting hole are arranged along the first direction, and the second clamping portion and the second mounting hole are arranged along the first direction; when the press-fitting mechanism is in the second state relative to the hydraulic pump housing, the hydraulic pump housing is in a press-fitting position, the bearing outer ring is press-fitted to the first mounting hole by the first clamping portion, and the bearing copper pin is press-fitted to the second mounting hole by the second clamping portion.

2. The hydraulic pump housing press-fitting equipment according to claim 1, characterized in that: The press-fitting mechanism also includes: A bracket, mounted on the operating table, the bracket having a crossbeam, the crossbeam being located on a side of the operating panel away from the base, a press-fitting space being formed between the crossbeam and the operating panel, the crossbeam having a guide hole, the guide hole extending along the first direction; A press, mounted on the crossbeam, the output rod being connected to the press, and the press being used to drive the output rod to drive the pressing head device to move along the first direction in the pressing space; A guide rod, passing through the guide hole; and A connecting plate is located on a side of the crossbeam close to the operating table, and the guide rod is connected to the output rod through the connecting plate.

3. The hydraulic pump housing press-fitting equipment according to claim 2, characterized in that: One end of the output rod is provided with a connecting sleeve, the connecting sleeve is connected to the side of the connecting plate away from the operating table, and the connecting sleeve has an open groove; a through hole is provided on the connecting plate, and the pressure head device is connected to the connecting sleeve through a connecting seat, and the connecting seat includes a base and a connecting member, the base is arranged on the side of the connecting plate away from the connecting sleeve, the connecting member is passed through the through hole, the first end of the connecting member is fixedly connected to the base, and the second end of the connecting member is clamped in the open groove, the open groove is used to limit the relative movement of the connecting member and the connecting sleeve in the first direction, and the second end of the connecting member has a gap between its own circumferential direction and the inner wall of the open groove; the pressure head device includes: a mounting plate having a first hole and a second hole; a connecting rod connected to the mounting plate, the connecting rod being inserted into the first hole, the first end of the connecting rod being detachably connected to the base, the second end of the connecting rod being provided with a pressing head body for mounting the outer ring of the bearing, the pressing head body constituting the first pressing portion; and A press rod is connected to the mounting plate, the press rod is passed through the second hole, and the press rod constitutes the second clamping portion.

4. The hydraulic pump housing press-fitting equipment according to claim 3, characterized in that: The inner wall of the second hole is provided with an internal thread, the outer wall of the press-fitting rod is provided with an external thread matching the internal thread, and the press-fitting rod is fixed to the mounting plate by a fastening nut.

5. The hydraulic pump housing press-fitting equipment according to claim 3, characterized in that: An annular groove is provided on the outer wall of the second end of the connecting rod, and the pressure head body has a pressure head interface, which is sleeved on the outer wall of the second end of the connecting rod. An elastic gasket is provided between the annular groove and the pressure head interface, and the inner ring of the elastic gasket abuts against the annular groove, and the outer ring of the elastic gasket abuts against the inner wall of the pressure head interface.

6. The hydraulic pump housing press-fitting equipment according to claim 1, characterized in that: A pressure block is provided on the operating panel, and when the hydraulic pump housing is in the press-fitting station, the hydraulic pump housing and the pressure block are arranged along the first direction.

7. The hydraulic pump housing press-fitting device according to claim 6, characterized in that: The hydraulic pump housing press-fitting device further includes a buffer mechanism; When the hydraulic pump housing is in the press-fitting station, along the first direction, the buffer mechanism is located between the hydraulic pump housing and the pressure block.

8. The hydraulic pump housing press-fitting device according to any one of claims 1 to 7, characterized in that: The hydraulic pump housing press-fitting device further comprises: Slide plate; Two positioning plates, both mounted on the slide plate, one positioning plate having a first mounting position for mounting one hydraulic pump housing, and the other positioning plate having a second mounting position for mounting another hydraulic pump housing; and The moving mechanism is used to drive the slide plate to move along a second direction, wherein the second direction is parallel to the plane where the operating table is located and the second direction is perpendicular to the first direction; the moving mechanism is configured to be able to drive the two hydraulic pump housings to the pressing station in sequence.

9. The hydraulic pump housing press-fitting device according to claim 8, characterized in that: The hydraulic pump housing press-fitting device comprises a pressure block and a buffer mechanism, there are two of each of the buffer mechanism and the pressure block, and the two buffer mechanisms, the two pressure blocks and the two positioning plates are arranged in one-to-one correspondence; In a group of corresponding buffer mechanisms, pressure blocks and positioning plates: the buffer mechanism includes a buffer plate, the buffer plate is located between the positioning plate and the slide plate, the buffer plate is provided with abutment columns and buffer components, the slide plate is provided with avoidance holes for passing the abutment columns, the abutment columns are used to abut against the pressure block, one end of the buffer component is connected to the positioning plate, and the other end of the buffer component is used to abut against the slide plate.

10. The hydraulic pump housing press-fitting equipment according to claim 9, characterized in that: In a group of corresponding buffer mechanisms, pressure blocks and positioning plates: the buffer assembly of the buffer mechanism includes a plurality of elastic members, each of which can be extended and compressed along the first direction, one end of each of the elastic members is connected to the positioning plate, and the other end of each of the elastic members is used to abut against the slide plate, and a plurality of the elastic members are evenly spaced and distributed on the positioning plate.

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