A floating locking mechanism of a shrink-fit press head

Abstract

The utility model relates to a hot jacket presss from both sides and installs the floating locking mechanism of press head, including fixed plate, floating plate, floating subassembly, locking subassembly and taking material subassembly, floating subassembly includes plane bearing, pull rod and locking nut, plane bearing divides and is located at the upper and lower two sides of floating plate, pull rod passes through fixed plate, floating plate and plane bearing to be locked by locking nut, pull rod and floating plate clearance fit, locking subassembly includes locking cylinder and locking lever, locking lever passes through fixed plate and floating plate and is connected with locking cylinder, locking lever and floating plate clearance fit, taking material subassembly includes positioning cylinder, floating joint and positioning pin, floating joint is connected with the fixed end of positioning cylinder, the movable end of positioning cylinder is connected with positioning pin, positioning pin passes through fixed plate and floating plate in proper order, and positioning cylinder can pull positioning pin and floating joint and engage. The utility model utilizes floating subassembly to realize the relative position movement of floating plate and fixed plate on the horizontal plane, then utilizes locking subassembly to lock the relative position.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to a floating locking mechanism for a heat-shrink press head. Background Technology

[0002] Hot-fitting assembly refers to the process where a press presses the stator into a heated housing. After cooling, the stator and housing achieve an interference fit, completing the motor assembly. During hot pressing, the press head needs to achieve precise positioning of the stator and housing. However, most press heads are currently fixed and cannot adapt to variations in materials from different batches of the same product.

[0003] 1. Inconsistent processing batches and product tolerances of products with the same part number, coupled with different pallet tolerances, will eventually cause the stator to rub against the integrated shell during the pressing process, resulting in aluminum shavings.

[0004] 2. Different material numbers have different heating expansion and deformation amounts. Fixed pressure heads require manual adjustment of the pressure head position to meet the compatibility of different products, making it impossible to quickly change models. Utility Model Content

[0005] This utility model provides a floating locking mechanism for a heat-fitting press head to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a floating locking mechanism for a heat fitting press head, including a fixed plate, a floating plate, a floating assembly, a locking assembly, and a material handling assembly.

[0007] The floating assembly includes a first planar bearing, a second planar bearing, a pull rod, and a locking nut. The upper housing of the first planar bearing is embedded in the fixed plate, and the lower housing is embedded in the floating plate. The upper housing of the second planar bearing is embedded in the floating plate. The sides of the lower housing of the first planar bearing and the upper housing of the second planar bearing that contact the balls are flat. The pull rod passes through the fixed plate, the first planar bearing, the floating plate, and the second planar bearing in sequence and is locked by the locking nut. The pull rod is clearance-fitted with the floating plate.

[0008] The locking assembly includes a locking cylinder and a locking rod. The locking cylinder is installed at the bottom of the floating plate. One end of the locking rod is a head, and the other end passes through the fixed plate and the floating plate in sequence to connect with the locking cylinder. The locking rod is in clearance fit with the floating plate.

[0009] The material handling assembly includes a positioning cylinder, a floating joint, and a positioning pin. The positioning cylinder is installed at the bottom of the floating plate. The floating joint is connected to the fixed end of the positioning cylinder. The movable end of the positioning cylinder is connected to the positioning pin. The positioning pin passes through the fixed plate and the floating plate in sequence. The positioning cylinder can pull the positioning pin to engage with the floating joint.

[0010] Preferably, the floating components are in four groups.

[0011] Preferably, the four sets of floating components are disposed at the four corners of the fixed plate and the floating plate.

[0012] Preferably, both the locking assembly and the material handling assembly are in two sets.

[0013] Preferably, the two sets of locking components and the two sets of material handling components are arranged in a cross-sectional manner.

[0014] Preferably, the lower housing of the first planar bearing and the upper housing of the second planar bearing are bearing housings installed in opposite directions.

[0015] Preferably, the fixing plate and the floating plate are fitted with pin sleeves on the inner walls of the through holes into which the positioning pins are inserted.

[0016] Preferably, the floating plate is provided with a U-shaped groove at the position corresponding to the locking assembly to provide clearance for the locking rod.

[0017] Compared with the prior art, the floating locking mechanism of the heat fitting press head provided by this utility model has the following advantages: the lower outer shell of the first plane bearing and the upper outer shell of the second plane bearing are flat on the side that contacts the ball, and the tie rod is clearance-fitted with the floating plate. In this way, the ball can move freely within the clearance range on the horizontal plane, that is, the floating plate can move freely relative to the fixed plate within the clearance range to realize the floating function; after the position of the floating plate relative to the fixed plate is adaptively adjusted, the relative position of the floating plate and the fixed plate can be locked by the locking component. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the floating locking mechanism of the heat fitting press head in a specific embodiment of the present utility model;

[0019] Figure 2 This is a top view of the floating locking mechanism of the heat fitting press head in a specific embodiment of the present utility model;

[0020] Figure 3 for Figure 2 AA cross-section view;

[0021] Figure 4 for Figure 3 Enlarged view of part C;

[0022] Figure 5 for Figure 2 BB cross-section.

[0023] In the diagram: 10-fixed plate, 20-floating plate, 30-floating component, 31-first plane bearing, 32-second plane bearing, 33-pull rod, 34-locking nut, 35-ball bearing, 36-groove, 40-locking component, 41-locking cylinder, 42-locking rod, 43-U-groove, 50-material picking component, 51-positioning cylinder, 52-floating joint, 53-positioning pin, 54-pin sleeve. Detailed Implementation

[0024] To illustrate the technical solution of the above utility model in more detail, specific embodiments are listed below to demonstrate the technical effects; it should be emphasized that these embodiments are used to illustrate the present utility model and not to limit the scope of the present utility model.

[0025] 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., indicating the orientation or positional relationship, are based on the orientation and positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] 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.

[0027] The floating locking mechanism for the heat fitting press head provided by this utility model, such as Figures 1 to 5 As shown, it includes a fixed plate 10, a floating plate 20, a floating assembly 30, a locking assembly 40, and a material handling assembly 50, wherein:

[0028] The floating assembly 30 includes a first planar bearing 31, a second planar bearing 32, a pull rod 33, and a locking nut 34. The upper outer shell of the first planar bearing 31 is embedded in the fixed plate 10, and the lower outer shell is embedded in the floating plate 20. The upper outer shell of the second planar bearing 32 is embedded in the floating plate 20. A ball bearing 35 is provided between the upper and lower outer shells. The side of the lower outer shell of the first planar bearing 31 and the upper outer shell of the second planar bearing 32 that contacts the ball bearing 35 is a flat surface. The relative position movement of the fixed plate 10 and the floating plate 20 can be achieved by the rolling of the ball bearing 35. The pull rod 33 passes through the fixed plate 10, the first planar bearing 31, the floating plate 20, and the second planar bearing 32 in sequence, and is locked by the locking nut 34 to preload the planar bearings. The pull rod 33 is clearance-fitted with the floating plate 20. The floating plate 20 can move freely relative to the fixed plate 10 within the clearance range to achieve the floating function.

[0029] The locking assembly 40 includes a locking cylinder 41 and a locking rod 42. The locking cylinder 41 is installed at the bottom of the floating plate 20. One end of the locking rod 42 is a head, and the other end passes through the fixed plate 10 and the floating plate 20 in sequence and is connected to the locking cylinder 41. The locking rod 42 is clearance-fitted with the floating plate 20. After the position of the floating plate 20 relative to the fixed plate 10 is adaptively adjusted, the locking cylinder 41 can drive the locking rod 42 to tighten the floating plate 20 and the fixed plate 10, locking their relative positions.

[0030] The material handling assembly 50 includes a positioning cylinder 51, a floating joint 52, and a positioning pin 53. The positioning cylinder 51 is installed at the bottom of the floating plate 20. The floating joint 52 is connected to the fixed end of the positioning cylinder 51, and the movable end of the positioning cylinder 51 is connected to the positioning pin 53. The positioning pin 53 passes through the fixed plate 10 and the floating plate 20 in sequence. The positioning cylinder 51 can pull the positioning pin 53 to engage with the floating joint 52. That is, when the positioning cylinder 51 pulls the positioning pin 53 to engage with the floating joint 52, the fixed plate 10 and the floating plate 20 are at the unique origin position, which is the material handling position.

[0031] In some embodiments, please refer to the following: Figure 1 and Figure 2 The floating components 30 are in four groups, and the four groups of floating components 40 can be respectively set at the four corners of the fixed plate 10 and the floating plate 20, which can both limit the vertical position of the plate 10 and the floating plate 20 and realize the relative movement of the two in the horizontal plane.

[0032] In some embodiments, please refer to Figure 1 and Figure 2The locking assembly 40 and the material picking assembly 50 are both in two sets, and the two sets of locking assemblies 40 and the two sets of material picking assemblies 50 are arranged in a cross manner to improve the stability of the entire device.

[0033] In some embodiments, please refer to the following: Figure 4 The lower housing of the first planar bearing 31 and the upper housing of the second planar bearing 32 are installed in opposite directions. In other words, by reversing the installation of ordinary bearing housings, the balls 35 are not confined within the grooves 36 of the bearing housings installed on the upper and lower sides of the floating plate 20, allowing the floating plate 20 to move freely within the gap. This eliminates the need for custom-made special planar bearings, reducing costs.

[0034] In some embodiments, please refer to the following: Figure 1 The fixed plate 10 and the floating plate 20 are used to insert the pin sleeve 54 on the inner wall of the through hole of the positioning pin 53. When the positioning pin 53 is inserted, the fixed plate 10 and the floating plate 20 are in the unique origin position.

[0035] In some embodiments, please refer to Figure 1 The floating plate 20 is provided with a U-shaped groove 43 at the position corresponding to the locking assembly 40 to provide clearance for the locking rod 42. This not only does not affect the relative position movement of the fixed plate 10 and the floating plate 20, but also provides a vertical clamping force through the locking rod 42 to prevent the fixed plate 10 and the floating plate 20 from moving relative to each other.

[0036] The floating locking mechanism for the heat fitting press head provided by this utility model includes three working states:

[0037] 1. Initial state: Positioning cylinder 51 controls positioning pin 53 to engage with floating joint 52. At this time, floating plate 20 and fixed plate 10 are in the unique origin position. This state is used for equipment to pick up materials.

[0038] 2. Floating state: After the equipment finishes picking up the material, it enters the pressing procedure. The positioning cylinder 51 retracts and cancels the positioning, so that the floating plate 20 can float freely relative to the fixed plate 10. The material is closed in the floating state, and the stator and the integrated shell are adaptively nested through floating.

[0039] 3. Locked state: After the stator linear section is embedded in the integrated housing, the tension locking cylinder 41 stops floating and locks the floating plate 20 and the fixed plate 10 in the self-adapted position. The equipment continues the pressing action until the pressing is completed.

[0040] Of course, after the pressing is completed, the press head releases the stator and returns to the origin, returning to the initial posture to begin the next round of work.

[0041] In this way, the floating locking mechanism of the heat fitting press head provided by this utility model allows for the heating expansion center of different products to be inconsistent, which may lead to the offset of the machine housing center and the equipment pressing compatibility problem. It meets the heating requirements for processing errors of different batches of products and the offset of the heat fitting center during the product changeover process. It also reduces the time required for manual secondary fine-tuning during the changeover process and improves the stability of the equipment.

[0042] In summary, the floating locking mechanism for the heat fitting press head provided by this utility model includes a fixed plate 10, a floating plate 20, a floating assembly 30, a locking assembly 40, and a material handling assembly 50. The floating assembly 30 includes a first planar bearing 31, a second planar bearing 32, a pull rod 33, and a locking nut 34. The upper outer shell of the first planar bearing 31 is embedded in the fixed plate 10, and the lower outer shell is embedded in the floating plate 20. The upper outer shell of the second planar bearing 32 is embedded in the floating plate 20. The side of the lower outer shell of the first planar bearing 31 and the upper outer shell of the second planar bearing 32 that contacts the ball bearing 35 is a flat surface. The pull rod 33 passes sequentially through the fixed plate 10, the first planar bearing 31, the floating plate 20, and the second planar bearing 32, and is locked by the locking nut 34. The pull rod 33 and the floating plate 20 are connected to the floating plate 30. The moving plate 20 is clearance-fitted; the locking assembly 40 includes a locking cylinder 41 and a locking rod 42. The locking cylinder 41 is installed at the bottom of the floating plate 20. One end of the locking rod 42 is a head, and the other end passes through the fixed plate 10 and the floating plate 20 in sequence and is connected to the locking cylinder 41. The locking rod 42 is clearance-fitted to the floating plate 20. The material picking assembly 50 includes a positioning cylinder 51, a floating joint 52, and a positioning pin 53. The positioning cylinder 51 is installed at the bottom of the floating plate 20. The floating joint 52 is connected to the fixed end of the positioning cylinder 51. The moving end of the positioning cylinder 51 is connected to the positioning pin 53. The positioning pin 53 passes through the fixed plate 10 and the floating plate 20 in sequence. The positioning cylinder 51 can pull the positioning pin 53 to engage with the floating joint 52. In this invention, the lower outer shell of the first planar bearing 31 and the upper outer shell of the second planar bearing 32 are flat on the side that contacts the ball 35, and the pull rod 33 is clearance-fitted with the floating plate 10, so that the ball 35 can move freely within the clearance range on the horizontal plane; after adaptively adjusting the position of the floating plate 20 relative to the fixed plate 10, the relative position of the floating plate 20 and the fixed plate 10 can be locked by the locking assembly 40, thereby completing the press fitting.

[0043] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Therefore, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model also intends to include these modifications and variations.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A floating locking mechanism for a heat-fitting press head, characterized in that, Includes a fixed plate, a floating plate, a floating assembly, a locking assembly, and a material handling assembly. The floating assembly includes a first planar bearing, a second planar bearing, a tie rod, and a locking nut. The upper housing of the first planar bearing is embedded in the fixed plate, and the lower housing is embedded in the floating plate. The upper housing of the second planar bearing is embedded in the floating plate; The lower housing of the first planar bearing and the upper housing of the second planar bearing have a flat surface on the side that contacts the ball bearing; the pull rod passes through the fixed plate, the first planar bearing, the floating plate and the second planar bearing in sequence, and is locked by the locking nut; the pull rod and the floating plate are clearance-fitted; The locking assembly includes a locking cylinder and a locking rod. The locking cylinder is installed at the bottom of the floating plate. One end of the locking rod is a head, and the other end passes through the fixed plate and the floating plate in sequence to connect with the locking cylinder. The locking rod is in clearance fit with the floating plate. The material handling assembly includes a positioning cylinder, a floating joint, and a positioning pin. The positioning cylinder is installed at the bottom of the floating plate. The floating joint is connected to the fixed end of the positioning cylinder. The movable end of the positioning cylinder is connected to the positioning pin. The positioning pin passes through the fixed plate and the floating plate in sequence. The positioning cylinder can pull the positioning pin to engage with the floating joint.

2. The floating locking mechanism for the heat fitting press head as described in claim 1, characterized in that, The floating components are in four groups.

3. The floating locking mechanism for the heat fitting press head as described in claim 2, characterized in that, The four sets of floating components are respectively located at the four corners of the fixed plate and the floating plate.

4. The floating locking mechanism for the heat fitting press head as described in claim 1, characterized in that, Both the locking assembly and the material handling assembly are in two sets.

5. The floating locking mechanism for the heat fitting press head as described in claim 4, characterized in that, The two sets of locking components and the two sets of material handling components are arranged in a cross manner.

6. The floating locking mechanism for the heat fitting press head as described in claim 1, characterized in that, The lower housing of the first planar bearing and the upper housing of the second planar bearing are bearing housings installed in opposite directions.

7. The floating locking mechanism for the heat fitting press head as described in claim 1, characterized in that, The fixed plate and floating plate are used to install pin sleeves on the inner walls of the through holes into which the positioning pins are inserted.

8. The floating locking mechanism for the heat fitting press head as described in claim 1, characterized in that, The floating plate is provided with a U-shaped groove at the position corresponding to the locking assembly to allow the locking rod to move.

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