Assembly fixture

Abstract

The utility model relates to the technical field of compressor discloses assembly tool, the first column of this assembly tool is fixed in the positioning base and is used for guiding first board along directional sliding, both ends of first elastic part are connected or abut with first board and positioning base one to one, and the direction is perpendicular with mounting surface, second board is equipped with at least two first positioning holes along the direction through, first damping part is used for connecting with the guide column of inserting in first positioning hole and along the direction limiting the relative position of guide column and second board, second board is connected in first board and is located between first board and mounting surface, second board has the first working condition of abutting at workpiece along the direction and the second working condition of far away from workpiece, when second board is in the first working condition, first board can approach second board along the direction and overcomes the damping force of first damping part and will at least two guide columns on second board press to workpiece synchronously, and the elastic restoring force of first elastic part can drive first board to be far away from workpiece along the direction. Reduce the energy consumption of assembly tool.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to assembly tooling. Background Technology

[0002] A scroll compressor consists of a stationary scroll, a moving scroll, and a bearing housing. The moving scroll is located between the stationary scroll and the bearing housing, forming a compression chamber. To ensure that the stationary scroll does not shift its position and can float relative to the bearing housing along its own axis, at least two guide pillars are usually installed on the bearing housing to guide the stationary scroll axially.

[0003] To assemble at least two guide posts into the bearing housing at once, a current assembly fixture mainly consists of a positioning base, a sliding pressure plate, a sliding guide plate, a first cylinder, and a second cylinder. The sliding guide plate has positioning grooves for the guide posts. To assemble at least two guide posts into the bearing housing simultaneously, the guide posts are first positioned in the positioning grooves. Then, the first cylinder drives the sliding guide plate to press against the bearing housing on the positioning base. Next, the second cylinder drives the sliding pressure plate to press the guide posts on the sliding guide plate against the bearing housing, thus enabling the assembly of at least two guide posts into the bearing housing at once. After the guide posts are assembled, the second cylinder moves the sliding pressure plate away from the bearing housing, and the first cylinder moves the sliding guide plate away from the bearing housing. However, this assembly fixture requires the second cylinder to drive the sliding pressure plate away from the bearing housing, resulting in high energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide an assembly fixture to solve the aforementioned problems of the fixtures in the related art that assemble at least two guide pillars into the bearing housing at one time.

[0005] Assembly fixture, used to simultaneously interference fit at least two guide posts to the workpiece, the assembly fixture comprising:

[0006] The positioning base has a mounting surface for mounting the workpiece;

[0007] The first clamping assembly includes a first plate, a first column, and a first elastic element; the first column is fixedly connected to the positioning base and is used to guide the first plate to slide along an orientation, the orientation being the axial direction of the first column; the first elastic element is located between the first plate and the positioning base along the orientation, and the two ends of the first elastic element are connected or abutted against the first plate and the positioning base respectively; the orientation is perpendicular to the mounting surface.

[0008] The second clamping assembly includes a second plate and at least two first damping members disposed on the second plate. The second plate has at least two first positioning holes extending along the orientation. The first damping members are used to connect with guide posts inserted into the first positioning holes and define the relative position of the guide posts and the second plate along the orientation. The second plate is connected to the first plate and located between the first plate and the mounting surface. The second plate has a first working state of abutting against the workpiece along the orientation and a second working state of moving away from the workpiece along the orientation. When the second plate is in the first working state, the first plate can move closer to the second plate along the orientation and overcome the damping force of the first damping members to simultaneously press the at least two guide posts on the second plate against the workpiece. The elastic restoring force of the first elastic member can drive the first plate away from the workpiece along the orientation.

[0009] As an alternative to the above-mentioned assembly tooling, the second clamping assembly further includes a second column and a second elastic member. The second column slides through the first plate and the second plate along the orientation, and the second elastic member is located between the first plate and the second plate along the orientation. When the second plate is in the first working state, the first plate can apply downward pressure to the second plate along the orientation through the second elastic member.

[0010] As an optional solution for the above-mentioned assembly tooling, the second clamping assembly further includes two first limiting members, both of which are fixedly connected to the second column. The first plate and the second plate are located between the two first limiting members along the orientation. When the second plate is in the second working state, the two first limiting members abut against the first plate and the second plate in a one-to-one correspondence.

[0011] As an alternative to the above-mentioned assembly fixture, the second clamping assembly further includes a second column, which is fixedly connected to the second plate and passes through the first plate along the orientation. The assembly fixture also includes a second damping member, which connects the second column and the first plate to define the relative positions of the second column and the first plate along the orientation.

[0012] As an alternative to the above-mentioned assembly fixture, the hole on the first plate for the second column to pass through is a second guide hole, and the second damping component adopts any of the following schemes:

[0013] The first type, the second damping element is an elastic element fixedly disposed on the outer peripheral wall of the second column;

[0014] The second type is an elastic element that is fixedly disposed on the inner peripheral wall of the second guide hole;

[0015] The third type is a protrusion on the outer peripheral wall of the second column, which is interference-fitted with the second guide hole;

[0016] Fourthly, the second damping element is a protrusion protruding from the inner peripheral wall of the second guide hole, and the protrusion is interference-fitted with the second column;

[0017] Fifthly, the second damping element is a magnetic suction element embedded in the inner peripheral wall of the second guide hole, and the upper part of the second column is made of magnetic suction material. The part of the second column made of magnetic suction material is located above the second plate along the orientation.

[0018] As an optional solution for the above-mentioned assembly tooling, the first damping component adopts any of the following solutions:

[0019] The first type is an elastic element that is fixedly disposed on the inner peripheral wall of the first positioning hole;

[0020] The second type is a magnetic suction device embedded in the inner peripheral wall of the first positioning hole, and at least part of the guide post is made of magnetic suction material.

[0021] As an optional solution for the above-mentioned assembly tooling, the positioning base includes a base body and a positioning component. The base body is provided with the mounting surface, and the positioning component includes a third column disposed on the base body. The third column is used to be inserted into a second positioning hole on the workpiece along the orientation so that the workpiece is supported and confined to the mounting surface.

[0022] As an optional solution for the above-mentioned assembly tooling, the mounting surface is recessed with a third positioning hole, and the positioning component further includes a third elastic element. The third elastic element is located in the third positioning hole and abuts against the third post along the orientation. The third post is slidably disposed in the third positioning hole along the orientation and has an extended state that partially extends out of the third positioning hole and a retracted state that is completely located in the third positioning hole. The elastic restoring force of the third elastic element can switch the third post from the retracted state to the extended state.

[0023] The second positioning hole is an insertion hole for the guide post to be interference-fitted into the workpiece. The guide post can abut against the third post along the orientation and can switch the third post from the extended state to the retracted state.

[0024] As an optional solution for the above-mentioned assembly tooling, the third positioning hole is a through hole that runs along the orientation, and the positioning component also includes a plug that is detachably connected to the base body, and the two ends of the third elastic member abut against the plug and the third column respectively.

[0025] As an optional solution for the above-mentioned assembly tooling, the third column includes a guide part and a positioning part connected to each other. The guide part is slidably disposed in the third positioning hole along the orientation, and the positioning part extends out of the third positioning hole along the orientation. When the workpiece is supported and confined on the mounting surface, and the third column is in the extended state, a portion of the outer peripheral wall of the positioning part contacts and positions itself with the inner peripheral wall of the second positioning hole.

[0026] Beneficial effects:

[0027] This utility model provides an assembly fixture for synchronously interference-fitting at least two guide posts to a workpiece. The assembly fixture includes a positioning base, a first clamping assembly, and a second clamping assembly. The positioning base has a mounting surface for mounting the workpiece. The first clamping assembly includes a first plate, a first post, and a first elastic element. The first post is fixedly connected to the positioning base and guides the first plate to slide along an axial direction, the axial direction being the first post. The first elastic element is located between the first plate and the positioning base along the axial direction, with both ends corresponding to or abutting against the first plate and the positioning base, and its orientation perpendicular to the mounting surface. The second clamping assembly includes a second plate and at least two first damping elements disposed on the second plate. The second plate has at least... Two first positioning holes are oriented through each other. A first damping member is used to connect with a guide post inserted in the first positioning hole and define the relative position of the guide post and the second plate in the orientation. The second plate is connected to the first plate and located between the first plate and the mounting surface. The second plate has a first working state of abutting against the workpiece in the orientation and a second working state of moving away from the workpiece in the orientation. When the second plate is in the first working state, the first plate can move closer to the second plate in the orientation and overcome the damping force of the first damping member to press at least two guide posts on the second plate simultaneously against the workpiece. The elastic restoring force of the first elastic member can drive the first plate away from the workpiece in the orientation.

[0028] When using this assembly fixture to synchronously interference-fit at least two guide posts to a workpiece, the workpiece is first installed on the mounting surface of the positioning base. At least two guide posts are then inserted into the first positioning holes of the second plate along their orientation, ensuring that each guide post does not pass through the end face of the second plate near the positioning base. The relative positions of the guide posts and the second plate are fixed by a first damping element. It can be understood that at this point, all guide posts are not passing through the end face of the second plate near the positioning base, and the second plate and all guide posts form an integral structure. Then, the integral structure formed by the second plate and all guide posts is driven to move along its orientation towards and support the workpiece, and the second plate switches to its first working state. Next, the first plate is driven to move along its orientation towards the second plate and overcome the damping force of the first damping element, synchronously pressing at least two guide posts on the second plate towards the workpiece until each guide post is interference-fitted into the workpiece, thus achieving the synchronous interference-fitting of at least two guide posts to the workpiece using this assembly fixture.

[0029] By setting the first elastic element to be oriented between the first plate and the positioning base, with both ends of the first elastic element corresponding to or abutting against the first plate and the positioning base, it can be understood that as the first plate moves towards the second plate along the orientation and overcomes the damping force of the first damping element to simultaneously press at least two guide posts on the second plate toward the workpiece, the first elastic element is compressed simultaneously. Therefore, after at least two guide posts are simultaneously interference-fitted into the workpiece, the elastic restoring force of the first elastic element drives the first plate away from the workpiece along the orientation, without the need to provide additional driving force to drive the first plate away from the workpiece along the orientation, thereby effectively reducing the energy consumption of the assembly tooling. Attached Figure Description

[0030] Figure 1 A cross-sectional view of the assembly fixture when the second plate is in the second working state, as provided in this embodiment of the utility model;

[0031] Figure 2 A cross-sectional view of the assembly fixture along a first perspective when the second plate is in a first working state, as provided in this embodiment of the utility model.

[0032] Figure 3 A cross-sectional view of the assembly fixture along a second perspective when the second plate is in the first working state, as provided in this embodiment of the utility model.

[0033] Figure 4 A cross-sectional view of the assembly fixture when the guide post is interference-fitted into the workpiece according to an embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of the assembly tooling provided in an embodiment of the present utility model;

[0035] Figure 6 An exploded view of the assembly tooling provided in an embodiment of this utility model;

[0036] Figure 7 This is a partial structural schematic diagram of the assembly tooling provided in an embodiment of the present utility model;

[0037] Figure 8 A schematic diagram of the structure of the third column provided in this embodiment of the utility model.

[0038] Figure 9 This is a partial structural diagram of the base body provided in an embodiment of the present utility model.

[0039] In the picture:

[0040] 100. Guide post; 200. Workpiece;

[0041] 1. Positioning base; 11. Base body; 111. Mounting surface; 112. Second positioning ear; 113. Third positioning hole; 1131. First hole segment; 1132. Second hole segment; 1133. First limiting surface; 12. Positioning assembly; 121. Third column; 1211. Guide part; 12111. Second limiting surface; 1212. Positioning part; 12121. First sub-wall; 12122. Second sub-wall; 122. Third elastic element; 123. Plug;

[0042] 2. First clamping assembly; 21. First plate; 211. First positioning ear; 22. First post; 23. First elastic element;

[0043] 3. Second clamping assembly; 31. Second plate; 32. Second column; 33. Second elastic element; 34. First limiting element. Detailed Implementation

[0044] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] To assemble at least two guide posts into the bearing housing at once, a current assembly fixture mainly consists of a positioning base, a sliding pressure plate, a sliding guide plate, a first cylinder, and a second cylinder. The sliding guide plate has positioning grooves for the guide posts. To assemble at least two guide posts into the bearing housing simultaneously, the guide posts are first positioned in the positioning grooves. Then, the first cylinder drives the sliding guide plate to press against the bearing housing on the positioning base. Next, the second cylinder drives the sliding pressure plate to press the guide posts on the sliding guide plate against the bearing housing, thus enabling the assembly of at least two guide posts into the bearing housing at once. After the guide posts are assembled, the second cylinder moves the sliding pressure plate away from the bearing housing, and the first cylinder moves the sliding guide plate away from the bearing housing. However, this assembly fixture requires the second cylinder to drive the sliding pressure plate away from the bearing housing, resulting in high energy consumption.

[0049] Example 1

[0050] like Figure 1-6As shown, this utility model provides an assembly fixture for synchronously interference-fitting at least two guide posts 100 to a workpiece 200. The assembly fixture includes a positioning base 1, a first clamping assembly 2, and a second clamping assembly 3. The positioning base 1 has a mounting surface 111 for mounting the workpiece 200. The first clamping assembly 2 includes a first plate 21, a first post 22, and a first elastic element 23. The first post 22 is fixedly connected to the positioning base 1 and guides the first plate 21 to slide along a directional axis, the axis being the axial direction of the first post 22. The first elastic element 23 is located between the first plate 21 and the positioning base 1 along the directional axis, with both ends of the first elastic element 23 correspondingly connected to or abutting against the first plate 21 and the positioning base 1, and its orientation is perpendicular to the mounting surface 111. The second clamping assembly 3 includes a second plate 31 and at least two first damping elements disposed on the second plate 31. The second plate 31 has at least two... A first positioning hole extends along a direction. A first damping member is used to connect with a guide post 100 inserted in the first positioning hole and define the relative position of the guide post 100 and the second plate 31 along the direction. The second plate 31 is connected to the first plate 21 and is located between the first plate 21 and the mounting surface 111. The second plate 31 has a first working state that abuts against the workpiece 200 along the direction and a second working state that moves away from the workpiece 200 along the direction. When the second plate 31 is in the first working state, the first plate 21 can move closer to the second plate 31 along the direction and overcome the damping force of the first damping member to press at least two guide posts 100 on the second plate 31 simultaneously against the workpiece 200. The elastic restoring force of the first elastic member 23 can drive the first plate 21 away from the workpiece 200 along the direction.

[0051] When using this assembly fixture to simultaneously interference-fit at least two guide posts 100 to the workpiece 200, first install the workpiece 200 on the mounting surface 111 of the positioning base 1. Then, insert at least two guide posts 100 into the first positioning holes of the second plate 31 along their orientation, ensuring that each guide post 100 does not pass through the end face of the second plate 31 near the positioning base 1. The relative positions of the guide posts 100 and the second plate 31 are kept constant by a first damping element. It can be understood that at this time, all guide posts 100 are aligned along their orientation and do not pass through the end face of the second plate 31 near the positioning base 1. The second plate 31 and all guide posts 100 form an integral structure; then the integral structure formed by the second plate 31 and all guide posts 100 is driven to move towards and support the workpiece 200 in an oriented manner, and the second plate 31 switches to the first working state; then the first plate 21 is driven to move towards the second plate 31 in an oriented manner and overcome the damping force of the first damping element to press at least two guide posts 100 on the second plate 31 synchronously towards the workpiece 200 until each guide post 100 is interference-fitted into the workpiece 200, so as to realize that at least two guide posts 100 are synchronously interference-fitted into the workpiece 200 using this assembly tooling.

[0052] By setting the first elastic element 23 oriented between the first plate 21 and the positioning base 1, with both ends of the first elastic element 23 correspondingly connected to or abutting against the first plate 21 and the positioning base 1, it can be understood that as the first plate 21 approaches the second plate 31 along the orientation and overcomes the damping force of the first damping element to simultaneously press at least two guide posts 100 on the second plate 31 against the workpiece 200, the first elastic element 23 is simultaneously compressed. Therefore, after the at least two guide posts 100 are simultaneously interference-fitted into the workpiece 200, the elasticity of the first elastic element 23... The elastic restoring force of the first elastic element 23 drives the first plate 21 away from the workpiece 200 along the orientation, without the need for additional driving force, thus effectively reducing the energy consumption of the assembly tooling. Secondly, after at least two guide posts 100 are simultaneously interference-fitted into the workpiece 200, the elastic restoring force of the first elastic element 23 automatically drives the first plate 21 away from the workpiece 200 along the orientation. Compared with the related technology that uses a second cylinder to drive the sliding pressure plate away from the bearing seat, this can effectively improve the efficiency of the first plate 21 moving away from the positioning base 1 along the orientation.

[0053] Therefore, this assembly tooling can effectively reduce energy consumption and improve assembly efficiency compared to related technologies.

[0054] It is understandable that the two ends of the first elastic member 23 are connected to the first plate 21 and the positioning base 1 in a one-to-one correspondence; or, the two ends of the first elastic member 23 are abutted against the first plate 21 and the positioning base 1 in a one-to-one correspondence.

[0055] Optionally, such as Figure 1-6 As shown, the first post 22 is a cylinder, and there are at least two first posts 22. The first plate 21 is slidably fitted onto the at least two first posts 22 along the axial direction of the first posts 22. This ensures that the first plate 21 slides only along the axial direction of the first posts 22. Specifically, the hole on the first plate 21 for passing through the first post 22 is a first guide hole, and correspondingly, there are at least two first guide holes.

[0056] In this embodiment, as Figure 1-6 As shown, the first column 22 is exemplarily set as a cylinder, and there are six first columns 22, which are distributed at intervals along the circumference of the first plate 21. It can be understood that the number of first columns 22 can be adaptively increased or decreased according to actual working conditions.

[0057] In other embodiments, the first pillar 22 may be a non-cylindrical pillar such as a square pillar, and the number of first pillars 22 may be at least one. This also allows the guide plate 21 to slide only along the axial direction of the first pillar 22.

[0058] Optionally, in this embodiment, the first elastic element 23 is a spring.

[0059] In other embodiments, the first elastic element 23 may also be made of a material with elastic deformation capabilities, such as rubber.

[0060] Alternatively, in this embodiment, the first elastic element 23 is sleeved on the outer periphery of the first post 22. This can limit the placement position of the first elastic element 23 and improve its working performance and service life.

[0061] Further, alternatively, the first elastic element 23 is only fitted around the outer periphery of a portion of the first pillar 22. This reduces the number of first elastic elements 23 and lowers the difficulty of driving the first plate 21 toward the second plate 31 along a directional path. In this embodiment, as... Figure 1-6 As shown, in an exemplary configuration, two of the six first pillars 22 are fitted with first elastic members 23 around their outer peripheries. Further, in this embodiment, as... Figure 5 As shown, two first positioning ears 211 protrude from the outer periphery of the first plate 21, and two second positioning ears 112 protrude from the outer periphery of the positioning base 1. The two first positioning ears 211, the two second positioning ears 112, and the two first elastic members 23 are arranged in a one-to-one correspondence. The two ends of each first elastic member 23 are connected to or abut against the first positioning ears 211 and the second positioning ears 112 respectively. This allows the first elastic members 23 to avoid the second plate 31, thereby enabling the second plate 31 to be set larger, further improving the working performance of the assembly tooling.

[0062] Optionally, the first damping element is an elastic element fixedly disposed on the inner peripheral wall of the first positioning hole. After the guide post 100 is inserted into the first positioning hole along the orientation, the elastic element abuts against the outer peripheral wall of the guide post 100 along the radial direction of the first positioning hole, so as to realize that the relative position of the guide post 100 and the second plate 31 is defined by the first damping element along the orientation, and that the first plate 21 can overcome the damping force of the first damping element and simultaneously press each guide post 100 into the workpiece 200 and make an interference fit with the workpiece 200. Specifically, the first damping element is made of an elastic material such as rubber.

[0063] Alternatively, the first damping element is an annular elastic element. The guide post 100 passes through the first damping element and elastically abuts against the inner peripheral wall of the first damping element along its own circumference, thereby further improving the reliability of the relative position of the guide post 100 and the second plate 31 defined by the first damping element in the orientation, and improving the service life of the first damping element.

[0064] Optionally, the first damping element is an annular elastic element. This improves the reliability of the relative position of the guide post 100 and the second plate 31 along the orientation, and extends the service life of the first damping element. It also allows the guide post 100 to be centered within the first positioning hole, enabling each guide post 100 to be more precisely and synchronously pressed into the workpiece 200 for an interference fit, thereby further improving the working performance and reliability of the assembly fixture.

[0065] As an alternative, the first damping element is a magnetic chuck embedded in the inner peripheral wall of the first positioning hole, and at least part of the guide post 100 is made of magnetic material. Magnetic attraction can effectively define the relative positions of the guide post 100 and the second plate 31 along the orientation, and allow the first plate 21 to overcome the magnetic force and simultaneously press each guide post 100 into the workpiece 200 for interference fit.

[0066] Example 2

[0067] This embodiment includes the assembly fixture described in Embodiment 1, and further describes the assembly fixture described in Embodiment 1.

[0068] Among them, such as Figure 1-6 As shown, the second clamping assembly 3 also includes a second post 32 and a second elastic member 33. The second post 32 slides through the first plate 21 and the second plate 31 along a directional axis. The second elastic member 33 is located between the first plate 21 and the second plate 31 along a directional axis. When the second plate 31 is in the first working state, the first plate 21 can apply downward pressure to the second plate 31 along the directional axis through the second elastic member 33. It can be understood that the axial direction of the second post 32 is parallel to the directional axis.

[0069] As the first plate 21 approaches the second plate 31 along the orientation, the second elastic element 33 presses the second plate 31 flatly onto the workpiece 200, which improves the parallelism between the first plate 21 and the workpiece 200. Thus, when the first plate 21 presses at least two guide posts 100 simultaneously along the orientation toward the workpiece 200, each guide post 100 can be pressed into the workpiece 200 more accurately and synchronously to achieve an interference fit with the workpiece 200, thereby further improving the working performance and reliability of the assembly tooling. Secondly, the second post 32 can also guide the first plate 21 to slide along the orientation, thereby further improving the reliability of the first plate 21 sliding only along the orientation.

[0070] Optionally, in this embodiment, as Figure 1-6As shown, the second clamping assembly 3 also includes two first limiting members 34, both of which are fixedly connected to the second post 32. The first plate 21 and the second plate 31 are both located between the two first limiting members 34 along the orientation. When the second plate 31 is in the second working state, the two first limiting members 34 abut against the first plate 21 and the second plate 31 in a one-to-one correspondence. It can be understood that this arrangement connects the first plate 21 and the second plate 31 into an integral structure.

[0071] After the second plate 31 switches to the first working state, during the process of driving the first plate 21 to move closer to the second plate 31 in a directional direction, the second elastic element 33 is compressed, so that the second plate 31 is flatly pressed onto the workpiece 200. After at least two guide posts 100 are simultaneously interference-fitted into the workpiece 200, the elastic restoring force of the first elastic element 23 automatically drives the first plate 21 and the second plate 31 as a whole to move away from the workpiece 200 in a directional direction. Therefore, compared with the prior art, only one driving element is needed to drive the first plate 21 to move in a directional direction towards the positioning base 1, which can further reduce energy consumption and effectively reduce the number of driving elements, thereby reducing production, assembly, disassembly and maintenance costs.

[0072] Optionally, in this embodiment, the second elastic element 33 is preferably always in a compressed state. Thus, after the second plate 31 switches to the first working state, when the first plate 21 begins to move closer to the second plate 31 along the orientation, the second elastic element 33 is simultaneously compressed, thereby further improving the effect of the second plate 31 being flatly pressed onto the workpiece 200, and further improving the effect of each guide post 100 being more accurately and synchronously pressed into the workpiece 200 for an interference fit. Specifically, as the elastic restoring force of the first elastic element 23 drives the first plate 21 and the second plate 31 as a whole to move away from the workpiece 200 along the orientation, the elastic restoring force of the second elastic element 33 drives the second plate 31 away from the first plate 21 back to its initial state.

[0073] Further, optionally, in this embodiment, as Figure 5 As shown, the first limiting component 34 is a nut, which is threadedly connected to the second column 32. This facilitates assembly, disassembly, and maintenance.

[0074] In other implementations, the first limiting member 34 is a limiting sleeve, which is fixed to the second column 32 by means of interference fit or welding.

[0075] Optionally, such as Figure 1-6 As shown, the second column 32 is a cylinder, and there are at least two second columns 32. All the second columns 32 slide through the first plate 21 and the second plate 31 along their own axial direction.

[0076] In this embodiment, as Figure 1-6As shown, the second column 32 is exemplarily set as a cylinder, and there are four second columns 32, with the four first columns 22 distributed at intervals along the circumference of the second plate 31. It can be understood that the number of second columns 32 can be adaptively increased or decreased according to actual working conditions.

[0077] In other embodiments, the second column 32 may also be a non-cylindrical column such as a square column, and the number of the second column 32 may be at least one.

[0078] Optionally, in this embodiment, the second elastic element 33 is a spring.

[0079] In other embodiments, the second elastic element 33 may also be made of a material with elastic deformation capabilities, such as rubber.

[0080] Alternatively, in this embodiment, the second elastic member 33 is sleeved on the outer periphery of the second post 32. This can limit the placement position of the second elastic member 33 and improve its working performance and service life.

[0081] Example 3

[0082] This embodiment includes the assembly fixture described in Embodiment 1, and further describes the assembly fixture described in Embodiment 1.

[0083] The second clamping assembly 3 further includes a second column 32, which is fixedly connected to the second plate 31 and passes through the first plate 21 along the orientation. The assembly fixture also includes a second damping element, which connects the second column 32 and the first plate 21 to define their relative positions along the orientation. The axial direction of the second column 32 is parallel to the orientation.

[0084] After the second plate 31 switches to the first working state, during the process of driving the first plate 21 to move closer to the second plate 31 along the orientation, the first plate 21 overcomes the damping force of the second damping element and presses the second plate 31 flatly onto the workpiece 200. This can improve the parallelism between the first plate 21 and the workpiece 200. Thus, when the first plate 21 presses at least two guide posts 100 simultaneously along the orientation toward the workpiece 200, each guide post 100 can be pressed into the workpiece 200 more accurately and synchronously to achieve an interference fit with the workpiece 200, thereby further improving the working performance and reliability of the assembly tooling. Secondly, the second post 32 can also guide the first plate 21 to slide along the orientation, thereby further improving the reliability of the first plate 21 sliding only along the orientation.

[0085] After at least two guide posts 100 are simultaneously interference-fitted into the workpiece 200, the elastic restoring force of the first elastic element 23 drives the first plate 21 away from the positioning base 1 along the orientation. Under the action of the second damping element, the first plate 21 can drive the second plate 31 to move away from the positioning base 1 along the orientation. Therefore, compared with the prior art, only one driving element is needed to drive the first plate 21 to move in the orientation towards the positioning base 1, which can further reduce energy consumption and effectively reduce the number of driving elements, thereby reducing production, assembly and disassembly and maintenance costs.

[0086] Optionally, in this embodiment, the second clamping assembly 3 further includes a second limiting member, which is fixedly connected to the second column 32. When the second column 32 is in the second working state, the second limiting member abuts against the end face of the first plate 21 away from the second plate 31 along the orientation. It is understood that this arrangement connects the first plate 21 and the second plate 31 into a single structure. This further improves the reliability of the first plate 21 driving the second plate 31 to synchronously move away from the positioning base 1 along the orientation, and prevents the first plate 21 from detaching from the second column 32.

[0087] Alternatively, in this embodiment, the second limiting member is a nut, which is threadedly connected to the second post 32. This facilitates assembly, disassembly, and maintenance.

[0088] In other implementations, the second limiting component is a limiting sleeve, which is fixed to the second column 32 by means of interference fit or welding.

[0089] Optionally, the second column 32 is a cylinder, and there are at least two second columns 32. All second columns 32 are fixedly connected to the second plate 31 and slide through the first plate 21 along the direction.

[0090] In other embodiments, the second column 32 may also be a non-cylindrical column such as a square column, and the number of the second column 32 may be at least one.

[0091] Among them, the hole on the first plate 21 for passing through the second column 32 is the second guide hole.

[0092] Optionally, the second damping element is an elastic element fixedly disposed on the outer peripheral wall of the second column 32. When the first plate 21 slides relative to the second column 32 such that the elastic element is located within the second guide hole, the elastic element abuts against the inner peripheral wall of the second guide hole radially. This achieves the directional limitation of the relative position between the second column 32 and the first plate 21 by the second damping element, and enables the first plate 21 to overcome the damping force of the second damping element and simultaneously press each guide column 100 into the workpiece 200 with an interference fit. Specifically, the second damping element is made of an elastic material such as rubber.

[0093] Alternatively, the second damping element is an annular elastic element. When the first plate 21 slides relative to the second post 32, the elastic element is located within the second guide hole, and the elastic element elastically abuts against the inner circumferential wall of the second guide hole along its own circumference. This further improves the reliability of the second damping element in defining the relative position of the second post 32 and the first plate 21 along the direction, and also improves the service life of the second damping element.

[0094] Alternatively, the second damping element can be a ring-shaped elastic element to further improve its service life.

[0095] As an alternative, the second damping element is an elastic element fixedly disposed on the inner peripheral wall of the second guide hole. Specifically, the second damping element is made of an elastic material such as rubber. Further optionally, the second damping element is an annular elastic element. Further optionally, the second damping element is a circular annular elastic element. The effect of the second damping element being fixedly disposed on the inner peripheral wall of the second guide hole is similar to that of the second damping element being fixedly disposed on the outer peripheral wall of the second column 32, and therefore will not be described in detail here.

[0096] As an alternative, the second damping element is a protrusion on the outer peripheral wall of the second post 32, which is interference-fitted with the second guide hole. When the first plate 21 slides relative to the second post 32 so that the protrusion is located inside the second guide hole, the protrusion abuts against the inner peripheral wall of the second guide hole radially. This achieves the directional limitation of the relative position of the second post 32 and the first plate 21 by the second damping element, and allows the first plate 21 to overcome the damping force of the second damping element and simultaneously press each guide post 100 into the workpiece 200 with an interference fit. Specifically, the protrusion is integrally formed on the outer peripheral wall of the second post 32; or, the protrusion is fixed to the outer peripheral wall of the second post 32 by welding or other means. Further optionally, the protrusion is an annular protrusion. Further optionally, the protrusion is a circular annular protrusion.

[0097] As an alternative, the second damping element is a protrusion extending from the inner peripheral wall of the second guide hole, and the protrusion is interference-fitted with the second post 32. Specifically, the protrusion is integrally formed on the inner peripheral wall of the second guide hole; or, the protrusion is fixed to the inner peripheral wall of the second guide hole by welding or other means. Further optionally, the protrusion is an annular protrusion. Further optionally, the protrusion is a circular annular protrusion. The effect of the second damping element being a protrusion extending from the inner peripheral wall of the second guide hole is similar to that of the second damping element being a protrusion extending from the outer peripheral wall of the second post 32, so it will not be described in detail here.

[0098] As an alternative, the second damping element is a magnetic chuck embedded in the inner peripheral wall of the second guide hole. The upper part of the second post 32 is made of magnetic material, and the magnetic material portion of the second post 32 is oriented above the second plate 31. Magnetic attraction effectively defines the relative position of the second post 32 and the first plate 21 along the orientation, allowing the first plate 21 to overcome the damping force of the second damping element and simultaneously press each guide post 100 into the workpiece 200, resulting in an interference fit.

[0099] Example 4

[0100] This embodiment includes the assembly fixture described in Embodiment 1, or the assembly fixture described in Embodiment 2, or the fixture described in Embodiment 3, and further describes the assembly fixture described in the above embodiments.

[0101] Among them, such as Figure 1-8 As shown, the positioning base 1 includes a base body 11 and a positioning component 12. The base body 11 has a mounting surface 111. The positioning component 12 includes a third post 121 disposed on the base body 11. The third post 121 is used to insert along the second positioning hole on the oriented workpiece 200, so that the workpiece 200 is supported and confined to the mounting surface 111. This enables the workpiece 200 to be positioned on the positioning base 1, facilitating the precise and simultaneous interference fit of at least two guide posts 100 onto the workpiece 200. Specifically, the second positioning ear 112 is disposed on the outer periphery of the base body 11.

[0102] Optionally, in this embodiment, as Figure 1-9 As shown, the mounting surface 111 is recessed with a third positioning hole 113. The positioning assembly 12 also includes a third elastic element 122. The third elastic element 122 is located within the third positioning hole 113 and abuts against the third post 121 along the orientation. The third post 121 is slidably disposed in the third positioning hole 113 along the orientation, having an extended state partially extending out of the third positioning hole 113 and a retracted state completely within the third positioning hole 113. The elastic restoring force of the third elastic element 122 can switch the third post 121 from the retracted state to the extended state. The second positioning hole is an insertion hole for the guide post 100 to be interference-fitted into the workpiece 200. The guide post 100 can abut against the third post 121 along the orientation and can switch the third post 121 from the extended state to the retracted state. It can be understood that the workpiece 200 is provided with at least two second positioning holes, and the at least two second positioning holes are correspondingly provided with at least two guide posts 100.

[0103] The first plate 21 applies downward pressure to at least two guide posts 100 simultaneously along the orientation, so that when at least two guide posts 100 are synchronously and one-to-one interference-fitted into at least two sockets, the guide post 100 first abuts against the third post 121 along the orientation, and then switches the third post 121 from the extended state to the retracted state, so that at least two guide posts 100 can be reliably inserted into at least two sockets one-to-one.

[0104] By setting the third elastic element 122, during the process of installing the workpiece 200 on the positioning base 1, it is possible to effectively prevent either the third column 121 or the workpiece 200 from being scratched or even damaged. After the workpiece 200 is moved away from the positioning base 1, the third column 121 automatically switches to the extended state under the elastic restoring force of the third elastic element 122, which facilitates the subsequent positioning of the next workpiece 200 and can further improve assembly efficiency.

[0105] Further, optionally, in this embodiment, such as Figure 6 and Figure 7 As shown, the third positioning hole 113 is a through hole extending along the orientation. The positioning assembly 12 also includes a plug 123 detachably connected to the base body 11. The two ends of the third elastic member 122 abut against the plug 123 and the third post 121 respectively. This facilitates the installation and removal of the third post 121 and the third elastic member 122, and facilitates the maintenance or replacement of the third post 121 and the third elastic member 122. Secondly, it can prevent the third post 121 and the third elastic member 122 from detaching from the base body 11 along the orientation from the end of the third positioning hole 113 away from the second plate 31.

[0106] Further, optionally, in this embodiment, such as Figure 6-9 As shown, the third positioning hole 113 includes a first hole segment 1131 and a second hole segment 1132 that are connected. The connection between the first hole segment 1131 and the second hole segment 1132 forms a first limiting surface 1133. The third post 121 is provided with a second limiting surface 12111. When the third post 121 is in the extended state, the first limiting surface 1133 and the second limiting surface 12111 abut against each other along the orientation. This prevents the third post 121 from detaching from the base body 11 at the end of the third positioning hole 113 near the second plate 31 along the orientation, thereby further improving the usability and reliability of the assembly tooling.

[0107] Alternatively, in this embodiment, the third elastic element 122 is a spring.

[0108] In other embodiments, the third elastic element 122 may also be made of a material with elastic deformation capabilities, such as rubber.

[0109] As an alternative, the third column 121 can also be fixedly connected to the mounting surface 111 of the base body 11. The fixed connection can be integral molding, welding, or threaded connection, etc. It is understood that in this case, the second positioning hole on the workpiece 200 and the insertion hole of the interference fit guide column 100 on the workpiece 200 are set separately and are not the same hole.

[0110] Optionally, in this embodiment, as Figure 6-9 As shown, the third column 121 includes a guide portion 1211 and a positioning portion 1212 connected together. The guide portion 1211 is slidably disposed within the third positioning hole 113 along a directional direction, and the positioning portion 1212 extends out of the third positioning hole 113 along a directional direction. When the workpiece 200 is supported and confined on the mounting surface 111, and the third column 121 is in the extended state, the inner circumferential wall of the second positioning hole of the positioning portion 1212 contacts and positions itself. Specifically, the guide portion 1211 is slidably disposed within the first hole segment 1131 along a directional direction, and the positioning portion 1212 extends out of the second hole segment 1132 along a directional direction. The second limiting surface 12111 is disposed on the guide portion 1211 or the positioning portion 1212. In this embodiment, the second limiting surface 12111 is exemplary disposed on the guide portion 1211.

[0111] When the workpiece 200 is supported and confined to the mounting surface 111, and the third column 121 is in the extended state, the inner peripheral wall of the second positioning hole of the outer peripheral wall of the positioning part 1212 contacts and positions the workpiece 200. This reduces the contact area between the outer peripheral wall of the positioning part 1212 and the inner peripheral wall of the second positioning hole while accurately positioning the relative position of the workpiece 200 and the positioning base 1. This facilitates the guide column 100 to drive the third column 121 away from the second positioning hole of the workpiece 200 and switch from the extended state to the retracted state. It also facilitates the insertion and positioning of the third column 121 and the workpiece 200.

[0112] Specifically, in this embodiment, as Figure 8 As shown, the exemplary positioning part 1212 has an outer peripheral wall comprising two first sub-walls 12121 and two second sub-walls 12122. The first sub-wall 12121 is an arc surface, and the second sub-wall 12122 comprises two planes connected to each other and arranged at an included angle. Along the circumference of the positioning part 1212, the two first sub-walls 12121 and the two second sub-walls 12122 are alternately distributed and sequentially connected to form the outer peripheral wall of the positioning part 1212.

[0113] Understandably, the outer peripheral wall of the positioning part 1212 can be adapted to meet actual working conditions by being formed by connecting at least two planes sequentially. This allows for accurate positioning of the relative positions of the workpiece 200 and the positioning base 1, while reducing the contact area between the outer peripheral wall of the positioning part 1212 and the inner peripheral wall of the second positioning hole.

[0114] Alternatively, in this embodiment, the guide portion 1211 and the positioning portion 1212 of the third column 121 are integrally formed. This reduces the number of parts and improves the positioning accuracy and structural strength of the third column 121.

[0115] In this embodiment, as Figure 1-4 As shown, workpiece 200 is exemplarily configured as a bearing housing for a scroll compressor. It is understood that workpiece 200 may also be other parts that require an interference fit with the guide post 100.

[0116] In other embodiments, the guide portion 1211 and the positioning portion 1212 may be connected by welding or interference fitting to form the third column 121.

[0117] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An assembly fixture for synchronously interference-fitting at least two guide posts to a workpiece, characterized in that, The assembly fixture includes: The positioning base has a mounting surface for mounting the workpiece; The first clamping assembly includes a first plate, a first column, and a first elastic element; the first column is fixedly connected to the positioning base and is used to guide the first plate to slide along an orientation, the orientation being the axial direction of the first column; the first elastic element is located between the first plate and the positioning base along the orientation, and the two ends of the first elastic element are connected or abutted against the first plate and the positioning base respectively; the orientation is perpendicular to the mounting surface. The second clamping assembly includes a second plate and at least two first damping members disposed on the second plate. The second plate has at least two first positioning holes extending along the orientation. The first damping members are used to connect with guide posts inserted into the first positioning holes and define the relative position of the guide posts and the second plate along the orientation. The second plate is connected to the first plate and located between the first plate and the mounting surface. The second plate has a first working state of abutting against the workpiece along the orientation and a second working state of moving away from the workpiece along the orientation. When the second plate is in the first working state, the first plate can move closer to the second plate along the orientation and overcome the damping force of the first damping members to simultaneously press the at least two guide posts on the second plate against the workpiece. The elastic restoring force of the first elastic member can drive the first plate away from the workpiece along the orientation.

2. The assembly fixture according to claim 1, characterized in that, The second clamping assembly further includes a second post and a second elastic member. The second post slides through the first plate and the second plate along the orientation. The second elastic member is located between the first plate and the second plate along the orientation. When the second plate is in the first working state, the first plate can apply downward pressure to the second plate along the orientation through the second elastic member.

3. The assembly fixture according to claim 2, characterized in that, The second clamping assembly also includes two first limiting members, both of which are fixedly connected to the second column. The first plate and the second plate are located between the two first limiting members along the orientation. When the second plate is in the second working state, the two first limiting members abut against the first plate and the second plate in a corresponding manner.

4. The assembly fixture according to claim 1, characterized in that, The second clamping assembly further includes a second post, which is fixedly connected to the second plate and passes through the first plate along the orientation. The assembly fixture further includes a second damping member, which connects the second post and the first plate to define the relative positions of the second post and the first plate along the orientation.

5. The assembly fixture according to claim 4, characterized in that, The hole on the first plate for the second post to pass through is a second guide hole, and the second damping element adopts any of the following schemes: The first type, the second damping element is an elastic element fixedly disposed on the outer peripheral wall of the second column; The second type is an elastic element that is fixedly disposed on the inner peripheral wall of the second guide hole; The third type is a protrusion on the outer peripheral wall of the second column, which is interference-fitted with the second guide hole; Fourthly, the second damping element is a protrusion protruding from the inner peripheral wall of the second guide hole, and the protrusion is interference-fitted with the second column; Fifthly, the second damping element is a magnetic suction element embedded in the inner peripheral wall of the second guide hole, and the upper part of the second column is made of magnetic suction material. The part of the second column made of magnetic suction material is located above the second plate along the orientation.

6. The assembly tooling according to any one of claims 1-5, characterized in that, The first damping element adopts any of the following schemes: The first type is an elastic element that is fixedly disposed on the inner peripheral wall of the first positioning hole; The second type is a magnetic suction device embedded in the inner peripheral wall of the first positioning hole, and at least part of the guide post is made of magnetic suction material.

7. The assembly tooling according to any one of claims 1-5, characterized in that, The positioning base includes a base body and a positioning component. The base body is provided with the mounting surface. The positioning component includes a third column disposed on the base body. The third column is used to be inserted into a second positioning hole on the workpiece along the orientation so that the workpiece is supported and confined to the mounting surface.

8. The assembly fixture according to claim 7, characterized in that, The mounting surface is recessed with a third positioning hole. The positioning component also includes a third elastic element. The third elastic element is located in the third positioning hole and abuts against the third post along the orientation. The third post is slidably disposed in the third positioning hole along the orientation and has an extended state that partially extends out of the third positioning hole and a retracted state that is completely located in the third positioning hole. The elastic restoring force of the third elastic element can switch the third post from the retracted state to the extended state. The second positioning hole is an insertion hole for the guide post to be interference-fitted into the workpiece. The guide post can abut against the third post along the orientation and can switch the third post from the extended state to the retracted state.

9. The assembly fixture according to claim 8, characterized in that, The third positioning hole is a through hole that extends along the orientation. The positioning component also includes a plug that is detachably connected to the base body. The two ends of the third elastic member abut against the plug and the third post respectively.

10. The assembly fixture according to claim 8, characterized in that, The third column includes a guide portion and a positioning portion connected together. The guide portion is slidably disposed in the third positioning hole along the orientation, and the positioning portion extends out of the third positioning hole along the orientation. When the workpiece is supported and confined on the mounting surface, and the third column is in the extended state, a portion of the outer peripheral wall of the positioning portion contacts and positions itself with the inner peripheral wall of the second positioning hole.

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