Compressor shell transfer chuck

Abstract

The utility model relates to a compressor shell transfer chuck which comprises a base, a sliding block, a guide pulley and a chuck body, a connecting structure connected with an external driving device is arranged on the upper surface of the base, the sliding block is installed on the lower surface of the base in a sliding mode, and the sliding block has a clamping direction relative to the base in a sliding mode. A reset spring is further arranged between the base and the sliding block, and the reset spring enables the sliding block to slide towards the side away from the clamping direction and to be kept at the preset position when no external force exists. According to the compressor shell transfer chuck designed by the utility model, the movable base, the chuck body arranged at an angle, the cooperation of the guide pulley and the guide rail and the reset spring are combined, so that the problem of irregular-shape clamping in the prior art is effectively solved, stable and reliable clamping of semi-elliptical compressor shells and the like is realized, the universality is remarkably improved, and the working efficiency is improved. The clamp can adapt to shells of various specifications, and frequent replacement of the clamp is not needed.

Description

Technical Field

[0001] The utility model relates to compressor housing manufacturing equipment and technical fields, in particular to a compressor housing transfer chuck. Background Art

[0002] In existing technologies, during the compressor manufacturing process, the compressor housing needs to go through multiple processes, such as stamping, casting, and machining. When transferring between different processes, traditional clamping and handling methods face many challenges, especially when transferring semi-finished compressor housings. These challenges are particularly prominent in the following two aspects:

[0003] Irregular shapes often present a clamping challenge: Compressor housings are typically semi-elliptical or other irregular shapes, neither round nor square. This makes it difficult for traditional clamping tools to achieve stable and reliable gripping. Traditional jaw- or chuck-type fixtures must be customized for specific workpiece shapes, but the irregular shape of compressor housings makes them less versatile and difficult to meet production requirements. Furthermore, the irregular shape can easily lead to unstable clamping, causing slippage or shifting during transport, impacting production efficiency and quality.

[0004] Challenges posed by diverse specifications: Compressor housings vary significantly in size and shape, and traditional tooling lacks versatility, requiring the design and manufacture of separate fixtures for each housing size. This not only increases production costs but also prolongs production cycles, making it difficult to meet the demands of flexible production. Frequent tooling changes also reduce production efficiency and increase operator workload. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a compressor casing transfer chuck that realizes stable and efficient transfer and processing of irregular compressor casings, thereby significantly improving production efficiency.

[0006] In order to achieve the above-mentioned purpose, the compressor casing transfer chuck designed by the utility model includes a base, a slider, a guide pulley and a chuck body, the upper surface of the base is provided with a connecting structure connected to an external driving device, the slider is slidably installed on the lower surface of the base, and the slider has a clamping direction relative to the base, and a reset spring is also provided between the base and the slider, which enables the slider to slide toward the side away from the clamping direction and maintain it in a predetermined position when no external force is applied; the guide pulley is rotatably installed on the side of the slider away from the clamping direction, and the axial direction of the guide pulley is perpendicular to the clamping direction; the chuck body is detachably installed on the side of the slider away from the guide pulley, and the chuck body has a first arm and a second arm, the first arm and the second arm are arranged at an angle to form a clamping opening for clamping the compressor casing, and the opening direction of the clamping opening is consistent with the clamping direction.

[0007] Preferably, the free ends of the first arm and the second arm are rounded.

[0008] Preferably, free ends of the first arm and the second arm are pivotally connected to rollers, and the first arm and the second arm are in contact with the compressor housing through wheel surfaces of the rollers.

[0009] Preferably, the roller is made of rubber.

[0010] Preferably, it also includes an L-shaped connecting plate, the chuck body is detachably mounted on one side plate of the L-shaped connecting plate by bolts, the other side plate of the L-shaped connecting plate is provided with at least two threaded columns, and the side of the slider away from the guide pulley is provided with a screw hole adapted to the threaded column, and the threaded column is connected to the slider through the screw hole.

[0011] Preferably, a wheel frame is mounted on the side of the slider away from the clamping direction via screws, a vertically arranged wheel axle is pivotally connected to the wheel frame, and the guide pulley is a waist drum wheel coaxially fixed on the wheel axle.

[0012] Preferably, a sliding groove is provided on the lower surface of the base, and the slider has a sliding guide portion slidably engaged with the sliding groove; the return spring is arranged in the sliding groove, and the two ends of the return spring are respectively against the sliding guide portion and the groove wall of the sliding groove.

[0013] Preferably, a guide rod extending along the clamping direction is provided in the sliding groove, the reset spring is sleeved on the guide rod, and a sliding hole adapted to the guide rod is provided on the guide sliding portion.

[0014] The compressor casing transfer chuck designed by the present invention combines a movable base, an angled chuck, a guide pulley and a guide rail, and a reset spring. It not only effectively solves the problem of clamping irregular shapes in the prior art, and realizes stable and reliable clamping of semi-elliptical compressor casings, but also significantly improves the versatility, so that it can adapt to casings of various specifications without the need for frequent replacement of fixtures; at the same time, the chuck can cooperate with an external drive device to realize automatic transfer between working processes, as well as automatic control of clamping and loosening, which greatly improves production efficiency and operational convenience, and effectively reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the compressor housing transfer chuck provided in an embodiment of the present application;

[0016] Figure 2 This is a schematic structural diagram of the compressor housing transfer chuck provided in an embodiment of the present application from another perspective;

[0017] Figure 3 yes Figure 1 3D exploded view of

[0018] Figure 4 This is a schematic diagram of the base structure provided in an embodiment of the present application;

[0019] Figure 5 This is a schematic diagram of the implementation of the compressor casing transfer chuck provided in an embodiment of the present application.

[0020] Among them: base 10, guide rod 12, slide groove 11, slider 20, guide sliding part 21, slide hole 22, guide pulley 30, chuck body 40, first arm 41, second arm 42, roller 43, return spring 50, L-shaped connecting plate 60, threaded column 61, wheel frame 70, wheel axle 71, transfer mechanism 100, guide rail 200. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0022] The compressor casing transfer chuck described in this embodiment is mainly used to realize the transfer and clamping of the compressor casing between different processes during the compressor production process, so as to improve the degree of automation and production efficiency.

[0023] like Figures 1 to 5As shown, the compressor casing transfer chuck includes a base 10, a slider 20, a guide pulley 30 and a chuck body 40. The upper surface of the base 10 is provided with a connection structure connected to an external drive device not shown in the figure. The slider 20 is slidably mounted on the lower surface of the base 10, and the slider 20 has a clamping direction relative to the base 10. A return spring 50 is also provided between the base 10 and the slider 20, which enables the slider 20 to slide toward the side away from the clamping direction and remain in a predetermined position when no external force is applied; the guide pulley 30 is rotatably mounted on the side of the slider 20 away from the clamping direction, and the axial direction of the guide pulley 30 is perpendicular to the clamping direction; the chuck body 40 is detachably mounted on the side of the slider 20 away from the guide pulley 30, and the chuck body 40 has a first arm 41 and a second arm 42, and the first arm 41 and the second arm 42 are arranged at an angle to form a clamping opening for clamping the compressor casing, and the opening direction of the clamping opening is consistent with the clamping direction.

[0024] When implementing it specifically, Figure 5 As shown, the base 10 serves as the supporting structure of the entire chuck, and a connecting structure is provided on its upper surface. The connecting structure is usually in the form of a screw hole, etc., so that it can be reliably connected to an external driving device (such as a cylinder, an electric push rod, etc.). Through this connection, the entire chuck can move along a precisely predetermined trajectory with the movement of the external driving device; and in order to cooperate with the work of the chuck, two guide rails 200 extending along the moving direction of the chuck are provided on the side of the external driving device, and the transfer mechanism 100 (such as a conveyor belt) for transporting the compressor housing is provided between the two guide rails 200. At the same time, in order to achieve stable clamping and transportation of the compressor housing, the chucks are usually installed on both sides of the transfer mechanism 100 in a pair-to-pair form.

[0025] In actual operation, when the external driving device drives the base 10 to start moving, in the initial state, the first arm 41 and the second arm 42 of the chuck body 40 are located on both sides of the compressor housing and do not contact the compressor housing. As the base 10 continues to move, the guide pulley 30 will gradually contact the guide rail 200. At this time, the guide rail 200 will apply a force to the guide pulley 30 that is opposite to the clamping direction of the slider 20. This force will compress the reset spring 50 and prompt the slider 20 to move along the clamping direction. As the slider 20 moves, the first arm 41 and the second arm 42 of the chuck body 40 also move inward, thereby firmly clamping the compressor housing. Once the compressor housing is firmly clamped, the driving device can drive the chuck and the compressor housing to move to the workstation that needs to be processed, such as deburring.

[0026] After completing a specific process, the base 10 continues to move until the guide pulley 30 disengages from the external guide rail 200, and the return spring 50 will be quickly released, acting on the slider 20, pushing the slider 20 to slide away from the clamping direction. The movement of the slider 20 will directly cause the first arm 41 and the second arm 42 of the chuck body 40 to release the compressor housing. At this time, the compressor housing continues to move under the drive of the transfer mechanism 100 to complete the unloading process.

[0027] Through this structural design, the compressor casing transfer chuck can automatically complete the clamping, transfer, and loosening operations of the compressor casing, significantly improving production efficiency and automation while also effectively reducing the intensity of manual operation. More importantly, the angled clamping opening allows the chuck to stably and reliably clamp even irregularly shaped compressor casings, such as semi-elliptical ones. This provides a wider range of applicability and can accommodate compressor casings of various specifications, eliminating the need for frequent fixture changes and significantly improving production efficiency and flexibility.

[0028] In some embodiments, as Figure 2 As shown, the free ends of the first arm 41 and the second arm 42 are chamfered. When clamping the compressor housing, the free ends of the first arm 41 and the second arm 42 will contact the surface of the compressor housing. If the free ends are sharp, the stress at the contact point will be very concentrated during the clamping process, which may easily cause local deformation or damage to the clamp or the housing. The chamfered corners can disperse this stress and reduce the risk of damage.

[0029] In some embodiments, as Figure 1 、 Figure 2 As shown, the free ends of the first arm 41 and the second arm 42 are pivotally connected to rollers 43, and the first arm 41 and the second arm 42 contact the compressor housing through the wheel surfaces of the rollers 43. The pivoted rollers 43 thus convert sliding friction into rolling friction, significantly reducing frictional resistance. Specifically, the rollers 43 are made of rubber, i.e., rubber rollers 43 have a certain degree of elasticity. Even under high clamping forces, they do not exert excessive pressure on the housing surface, thereby preventing scratches or scrapes on the housing surface during clamping and transportation, effectively protecting the surface quality of the compressor housing.

[0030] In some embodiments, as Figure 2 、 Figure 3 As shown, it also includes an L-shaped connecting plate 60, and the chuck body 40 is detachably mounted on one side plate of the L-shaped connecting plate 60 by bolts. The other side plate of the L-shaped connecting plate 60 is provided with at least two threaded columns 61, and the side of the slider 20 away from the guide pulley 30 is provided with a screw hole adapted to the threaded column 61, and the threaded column 61 is connected to the slider 20 through the screw hole.

[0031] In practice, the initial position of the chuck body 40 in the clamping direction can be easily fine-tuned by rotating the threaded column 61 on the L-shaped connecting plate 60. For example, when clamping a smaller compressor housing, the threaded column 61 is slightly unscrewed to move the initial position of the chuck body 40 in the clamping direction outward; conversely, it is slightly unscrewed to move the initial position inward. In this way, the chuck body 40 can adaptably clamp compressor housings of different sizes without having to adjust the installation position of the entire base 10. In addition, the bolted and threaded connections also facilitate the quick disassembly and replacement of the chuck body 40.

[0032] In some embodiments, as Figure 1 、 Figure 3 As shown, a wheel frame 70 is mounted on the side of the slider 20 facing away from the clamping direction via screws. A vertically arranged wheel axle 71 is pivotally connected to the wheel frame 70. The guide pulley 30 is a waist drum wheel coaxially fixed to the wheel axle 71. The shape of the waist drum wheel (the wheel with a contracted center) enables it to have a certain degree of self-guiding ability when moving along the track 200, preventing the guide pulley 30 from deviating and ensuring smooth operation.

[0033] In some embodiments, as Figure 3 、 Figure 4 As shown, the lower surface of the base 10 is provided with a slide groove 11, and the slider 20 has a guide slide portion 21 that is slidably engaged with the slide groove 11; the return spring 50 is disposed in the slide groove 11, and the two ends of the return spring 50 respectively abut against the guide slide portion 21 and the groove wall of the slide groove 11. During the actual assembly process of the chuck, first, the slide groove 11 is pre-machined on the lower surface of the base 10. The shape and size of the slide groove 11 should match the guide slide portion 21 of the slider 20 to ensure that the guide slide portion 21 can slide smoothly in the slide groove 11. Then, the return spring 50 is placed in the slide groove 11. Finally, the guide slide portion 21 of the slider 20 is aligned with the slide groove 11 and pushed into the slide groove, so that the two ends of the return spring 50 respectively abut against the guide slide portion 21 and the groove wall of the slide groove 11. During operation, when an external drive mechanism drives the clamping arms of the chuck body 40 to clamp the compressor housing, the guide slide 21 compresses the return spring 50. When the drive mechanism stops, the return spring 50 releases its energy, pushing the guide slide 21 and the slider 20 away from the clamping position, causing the chuck body 40 to release the compressor housing. Throughout this process, the chute 11 acts as a guide, ensuring smooth sliding of the slider 20 and protecting the return spring 50.

[0034] In some embodiments, as Figure 3 、 Figure 4As shown, a guide rod 12 extending in the clamping direction is provided in the chute 11, the return spring 50 is sleeved on the guide rod 12, and a slide hole 22 is provided on the guide slide portion 21 to match the guide rod 12. During operation, when the external drive device drives the chuck body 40 to clamp the compressor housing, the slider 20 compresses the return spring 50, which is compressed along the guide rod 12 to maintain a straight state. When the drive device stops functioning, the return spring 50 releases energy under the guidance of the guide rod 12, pushing the guide slide portion 21 to slide along the chute 11 and guide rod 12, thereby achieving the reset of the chuck and ensuring the smooth opening and closing of the chuck body 40.

[0035] The compressor casing transfer chuck provided in this embodiment combines a movable base, an angled chuck, a guide pulley and a guide rail, and a reset spring. It not only effectively solves the problem of clamping irregular shapes in the prior art, and realizes stable and reliable clamping of semi-elliptical and other compressor casings, but also significantly improves the versatility, so that it can adapt to casings of various specifications without the need for frequent replacement of fixtures; at the same time, the chuck can cooperate with an external drive device to realize automatic transfer between processes, as well as automatic control of clamping and loosening, which greatly improves production efficiency and operational convenience, and effectively reduces labor costs.

[0036] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A compressor casing transfer chuck, characterized in that: The chuck body comprises a base, a slider, a guide pulley and a chuck body, the upper surface of the base is provided with a connecting structure connected to an external driving device, the slider is slidably mounted on the lower surface of the base, and the slider has a clamping direction when sliding relative to the base, and a return spring is also provided between the base and the slider to enable the slider to slide to the side away from the clamping direction and maintain it in a predetermined position when no external force is applied; the guide pulley is rotatably mounted on the side of the slider away from the clamping direction, and the axial direction of the guide pulley is perpendicular to the clamping direction; the chuck body is detachably mounted on the side of the slider away from the guide pulley, and the chuck body has a first arm and a second arm, the first arm and the second arm are arranged at an angle to form a clamping opening for clamping a compressor casing, and the opening direction of the clamping opening is consistent with the clamping direction.

2. The compressor casing transfer chuck according to claim 1, characterized in that: The free ends of the first arm and the second arm are rounded.

3. The compressor casing transfer chuck according to claim 1 or 2, characterized in that: The free ends of the first arm and the second arm are pivotally connected to rollers, and the first arm and the second arm are in contact with the compressor housing through the wheel surfaces of the rollers.

4. The compressor casing transfer chuck according to claim 3, characterized in that: The roller is made of rubber.

5. The compressor casing transfer chuck according to claim 1, characterized in that: It also includes an L-shaped connecting plate, and the chuck body is detachably mounted on one side plate of the L-shaped connecting plate by bolts. The other side plate of the L-shaped connecting plate is provided with at least two threaded columns. The side of the slider facing away from the guide pulley is provided with a screw hole adapted to the threaded column, and the threaded column is connected to the slider through the screw hole.

6. The compressor casing transfer chuck according to claim 1, characterized in that: A wheel frame is installed on the side of the sliding block away from the clamping direction through screws. A vertically arranged wheel axle is pivotally connected to the wheel frame. The guide pulley is a waist drum wheel coaxially fixed on the wheel axle.

7. The compressor casing transfer chuck according to claim 1, characterized in that: A sliding groove is provided on the lower surface of the base, and the slider has a sliding guide portion that is slidably engaged with the sliding groove; the return spring is arranged in the sliding groove, and the two ends of the return spring are respectively against the sliding guide portion and the groove wall of the sliding groove.

8. The compressor casing transfer chuck according to claim 7, characterized in that: A guide rod extending along the clamping direction is provided in the sliding groove, the reset spring is sleeved on the guide rod, and a sliding hole adapted to the guide rod is opened on the guide sliding portion.

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