Pressing jig

Abstract

This application provides a press-fit fixture, including a base, a support assembly, a speed control switch, and an actuation assembly. The support assembly is fixed to the base, and the speed control switch is fixed to the support assembly. The actuation assembly includes a drive member, a press-fit component, and a lever. The drive member is fixed to the support assembly and connected to the press-fit component to drive the press-fit component to move. The drive member has a fast drive state and a slow drive state. The lever includes a lever body and a contact portion, with the lever body connected between the press-fit component and the contact portion. Along the moving direction of the press-fit component, the projection of the contact portion overlaps with the projection of the switching portion of the speed control switch. When the press-fit component moves and the contact portion does not contact the switching portion, the drive member is in a fast drive state. When the contact portion abuts against the switching portion, the drive member is in a slow drive state. This configuration, by extending the drive member at different speeds, can improve the press-fit efficiency of the press-fit fixture while reducing the probability of damage to the pressed component and lowering manufacturing costs.

Description

Technical Field

[0001] This application relates to the field of tooling, and more particularly to a press-fit fixture. Background Technology

[0002] During refrigerator air duct assembly, the adjustment knob must be installed in a fixed position to reduce quality problems such as knob loosening, tilting, and easy detachment. In the current assembly process, the adjustment knob is slowly contacted by a cylinder in the tooling and pressed into a fixed position. However, because the cylinder extends slowly, it greatly affects the assembly efficiency of the adjustment knob and increases manufacturing costs.

[0003] Therefore, it is necessary to provide an improved press-fit fixture to solve some or all of the above problems. Utility Model Content

[0004] This application provides a press-fit fixture with high assembly efficiency.

[0005] This application provides a press-fit fixture, including:

[0006] Base;

[0007] A support assembly, wherein the support assembly is fixed to the base;

[0008] A speed control switch device, wherein the speed control switch device is fixed to the bracket assembly;

[0009] An execution component includes a drive component, a pressing component, and a paddle. The drive component is fixed to the bracket assembly and connected to the pressing component to drive the pressing component to move. The drive component includes a fast drive state and a slow drive state. The paddle includes a paddle body and a contact portion. The paddle body is connected between the pressing component and the contact portion.

[0010] Along the moving direction of the press-fitting member, the projection of the contact portion overlaps with the projection of the switching portion of the speed control switch device. When the press-fitting member moves and the contact portion does not contact the switching portion, the driving member is in the fast driving state; when the contact portion abuts against the switching portion, the driving member is in the slow driving state.

[0011] Furthermore, the paddle includes an upper paddle and a lower paddle fixed to the press-fit member. Along the moving direction of the press-fit member, the upper paddle is adjustablely connected to the lower paddle. The contact portion is provided on the upper paddle, and a portion of the upper paddle and the lower paddle constitute the paddle body.

[0012] Furthermore, along the direction of movement of the press-fit component,

[0013] The contact portion is adjustablely connected to the paddle body;

[0014] And / or, the paddle body is adjustablely connected to the press-fit component.

[0015] Furthermore, the paddle includes a waist-shaped groove, which is disposed on the paddle body or the contact portion.

[0016] Furthermore, it also includes a pressure regulating valve, a speed regulating valve, and a reversing valve fixed to the bracket assembly. The speed regulating valve is connected in parallel with the speed control switch and the reversing valve, respectively. The reversing valve is connected in series with the pressure regulating valve. The speed control switch includes a stroke valve, and the driving component includes a cylinder.

[0017] Furthermore, the base includes a base plate, a plurality of positioning members and a plurality of limiting members, the plurality of positioning members being arranged side by side and detachably connected to the base plate, and the limiting members being slidably connected to the limiting members.

[0018] Furthermore, the substrate is provided with a first guide groove and a second guide groove arranged perpendicularly to each other, and a plurality of the limiting members are respectively connected to the first guide groove and the second guide groove.

[0019] Furthermore, the substrate is also provided with at least one third guide groove and at least one fourth guide groove, wherein the first guide groove and the third guide groove are arranged in parallel and along their parallel direction, the first guide groove and the third guide groove are at least partially overlapped.

[0020] The second guide groove and the fourth guide groove are arranged in parallel, and along their parallel direction, the second guide groove and the fourth guide groove are at least partially overlapped;

[0021] The limiting member is connected to the third guide groove and the fourth guide groove respectively.

[0022] Furthermore, the base also includes a top block and a clearance hole. The top block is disposed between the plurality of positioning members, and the top block and some of the positioning members are located on one side of the clearance hole, which penetrates the substrate.

[0023] Furthermore, the pressing component includes a pressing plate and a pressing column. The pressing plate is fixed to the output shaft of the driving component, and the pressing column is adjustablely located on the side of the pressing plate facing away from the driving component.

[0024] Compared with the prior art, the press-fitting fixture of this application is equipped with a speed control switch and a lever. When the contact part of the lever is not in contact with the switch part, the drive component is in a fast drive state; when the contact part abuts against the switch part, the drive component is in a slow drive state. In this way, by extending the drive component at different speeds, the press-fitting efficiency of the press-fitting fixture can be improved, while the probability of damage to the pressed parts can be reduced, and the manufacturing cost can be reduced.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0027] Figure 1 This is a side view of the press-fit fixture of this application.

[0028] Figure 2 yes Figure 1 A three-dimensional view of the medium-pressure fixture.

[0029] Figure 3 yes Figure 2 A perspective view of the support assembly in the press-fitting fixture with part of the housing removed.

[0030] Figure 4 This is a partially enlarged view of the interaction between the execution component and the speed control switch device in this application.

[0031] Figure 5 yes Figure 3 A 3D view of the removed drive components and press-fit components.

[0032] Figure 6 yes Figure 3 A three-dimensional view of the assembly of the central base and support components.

[0033] Figure 7 This is a schematic diagram showing the connection between the speed control switch device, pressure regulating valve, speed regulating valve, directional valve, and throttle valve of this application.

[0034] Reference numerals: 1-Base; 11-Base plate; 111-First guide groove; 112-Second guide groove; 113-Third guide groove; 114-Fourth guide groove; 12-Positioning component; 13-Limiting component; 14-Top block; 15-Allowing hole; 2-Bracket assembly; 21-Bracket body; 22-Support plate; 3-Speed ​​control switch device; 31-Switch part; 32-Stroke valve; 4-Actuation component; 41-Driver; 411-Cylinder; 42-Pressure fitting part; 421-Pressure fitting plate; 422-Pressure column; 43-Pulley; 431-Pulley body; 432-Contact part; 433-Upper pulley; 434-Lower pulley; 435-Waist-shaped groove; 5-Pressure regulating valve; 6-Speed ​​regulating valve; 7-Reversing valve; 8-Throttle valve. Detailed Implementation

[0035] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0037] like Figure 1 and Figure 2 As shown, the press-fit fixture of this application includes a base 1, a bracket assembly 2, a speed control switch device 3, and an actuation assembly 4. The bracket assembly 2 is fixed to the base 1, and the speed control switch device 3 is fixed to the bracket assembly 2. For example, the bracket assembly 2 can be fixed to the base 1 by screwing, snap-fitting, or other methods. Similarly, the speed control switch device 3 can also be fixed to the bracket assembly 2 by screwing, snap-fitting, or other methods. This document does not impose any limitations on these methods.

[0038] The actuator 4 includes a drive component 41, a pressing component 42, and a lever 43. The drive component 41 is fixed to the bracket assembly 2 and spaced apart from the base 1, allowing the output shaft of the drive component 41 to extend and retract freely. The drive component 41 is connected to the pressing component 42 to drive the pressing component 42 to move. It should be noted that the pressing component 42 and the output shaft of the drive component 41 are fixedly arranged, allowing them to move synchronously. The drive component 41 has a fast drive state and a slow drive state. To describe these two states in detail, the following explanation uses the example of the drive component 41 driving the pressing component 42 to press the adjustment knob in the refrigerator air duct.

[0039] Specifically, when the drive component 41 is in the fast-drive state, the output shaft of the drive component 41 drives the pressing component 42 to move rapidly to approach the adjustment knob. When the drive component 41 is in the slow-drive state, the output shaft of the drive component 41 drives the pressing component 42 to press against the adjustment knob and slowly press the adjustment knob to a fixed position. It is worth noting that when the drive component 41 switches from the fast-drive state to the slow-drive state, the pressing component 42 does not contact the adjustment knob. This is to avoid the problem of the pressing component 42 impacting the adjustment knob when the drive component 41 is in the fast-drive state, thereby damaging the adjustment knob. When the drive component 41 resets, the output shaft of the drive component 41 first retracts slowly and then resets rapidly.

[0040] The paddle 43 includes a paddle body 431 and a contact portion 432. The paddle body 431 is connected between the press-fit member 42 and the contact portion 432. Along the moving direction of the press-fit member 42, the projection of the contact portion 432 overlaps with the projection of the switching portion 31 of the speed control switch device 3. When the press-fit member 42 moves and the contact portion 432 does not contact the switching portion 31, the drive member 41 is in a fast-drive state. When the contact portion 432 abuts against the switching portion 31, the drive member 41 is in a slow-drive state.

[0041] In other words, there is always a gap between the paddle body 431 and the switching part 31 of the speed control switch device 3, meaning that the paddle body 431 cannot contact the switching part 31 of the speed control switch device 3. Consequently, the speed control switch device 3 remains in the closed state during this stage, while the drive member 41 is in the fast drive state. However, since the projection of the contact part 432 overlaps with the projection of the switching part 31 of the speed control switch device 3, when the paddle 43 moves with the press-fit part 42, the contact part 432 can contact the switching part 31 of the speed control switch device 3, thereby putting the speed control switch device 3 in the open state and controlling the drive speed of the drive member 41, switching the drive member 41 from the fast drive state to the slow drive state.

[0042] With this configuration, the press-fit fixture of this application extends at a speed of the drive component 41. On the one hand, the overall time for the drive component 41 to press the adjustment knob with the press-fit component 42 can be reduced by the rapid drive state of the drive component 41, thereby improving the press-fit efficiency of the press-fit fixture. On the other hand, the press-fit component 42 can move slowly, reducing the probability of the adjustment knob being damaged by collision and reducing manufacturing costs.

[0043] Further integration Figure 3 and Figure 4As shown, in some embodiments, to improve the versatility of the press-fit fixture and accommodate air duct components of different specifications, the contact portion 432 can be adjusted relative to the press-fit component 42 along the moving direction of the press-fit component 42 to control the running time of the drive component 41 in the rapid driving state, that is, to control the extension stroke of the drive component 41. Specifically, since air duct components of different specifications have different thicknesses, and the drive component 41 is fixed to the bracket assembly 2, in order for the press-fit fixture to accommodate air duct components of different specifications, it is necessary to change the extension stroke of the output shaft of the drive component 41, and thus it is necessary to adjust the position of the contact portion 432.

[0044] In some embodiments, the paddle 43 includes an upper paddle 433 and a lower paddle 434. The upper paddle 433 is adjustablely connected to the lower paddle 434 along the moving direction of the press-fit member 42, and the lower paddle 434 is fixed to the press-fit member 42. A contact portion 432 is provided on the upper paddle 433, and a portion of the upper paddle 433 and the lower paddle 434 constitute the paddle body 431. Specifically, the upper paddle 433 may include a contact portion 432 and a connecting portion (not shown). Along the moving direction of the press-fit member 42, the projection of the contact portion 432 covers the projection of the connecting portion. The connecting portion is adjustablely connected to the lower paddle 434, and there is a gap between the switching portion 31 of the speed control switch device 3 and the connecting portion. The width of the connecting portion is the same as the width of the lower paddle 434, and both sides in the width direction are flush.

[0045] To ensure a smoother contact between the contact portion 432 and the switching portion 31 of the speed control switch device 3, and to reduce the impact force on the switching portion 31, the side of the contact portion 432 facing the switching portion 31 is arc-shaped. The lever 43 may also include a waist-shaped groove 435, which is located on the lever body 431. Specifically, the waist-shaped groove 435 may be located on the connecting portion or the lower lever 434, and the straight direction of the waist-shaped groove 435 is parallel to the moving direction of the press-fit member 42. The connecting portion and the lower lever 434 are connected by screws passing through the waist-shaped groove 435.

[0046] If the waist-shaped groove 435 is provided in the connecting part, the lower lever 434 can also be provided with another waist-shaped groove 435, and the lower lever 434 is connected to the press-fit part 42 by a screw passing through the waist-shaped groove 435, thereby increasing the adjustment range of the contact part 432. In order to improve the stability of the connection and the lower lever 434 during connection and adjustment, two waist-shaped grooves 435 are provided side by side.

[0047] In some other embodiments, the connecting part and the lower lever 434 can also be connected by a sliding groove and a sliding rail, that is, a sliding groove is provided on the connecting part and a sliding rail is provided on the lower lever 434, or a sliding rail is provided on the connecting part and a sliding groove is provided on the lower lever 434. This application does not limit this.

[0048] In some other embodiments, along the moving direction of the press-fit member 42, the contact portion 432 is adjustablely connected to the lever body 431, while the lever body 431 is fixed to the press-fit member 42. Alternatively, the lever body 431 can also be adjustablely connected to the press-fit member 42, while the contact portion 432 is fixed to the lever body 431. In this embodiment, a waist-shaped groove 435 is provided on either the lever body 431 or the contact portion 432. Accordingly, to improve the stability of the lever body 431 or the contact portion 432 during connection and adjustment, two waist-shaped grooves 435 are arranged side-by-side.

[0049] Admittedly, the sheet body 431 and the contact portion 432 can also be connected by a sliding groove and a sliding rail, that is, a sliding groove is provided on the sheet body 431 and a sliding rail is provided on the contact portion 432, or a sliding rail is provided on the sheet body 431 and a sliding groove is provided on the contact portion 432. Alternatively, the sheet body 431 and the pressing component 42 can be connected by a sliding groove and a sliding rail, that is, a sliding groove is provided on the sheet body 431 and a sliding rail is provided on the pressing component 42, or a sliding rail is provided on the sheet body 431 and a sliding groove is provided on the pressing component 42. This application does not limit this connection.

[0050] In some embodiments, the pressing component 42 includes a pressing plate 421 and a pressing column 422. The pressing plate 421 is fixed to the output shaft of the drive component 41 and can move synchronously with the output shaft of the drive component 41. The pressing column 422 is adjustablely disposed on the side of the pressing plate 421 facing away from the drive component 41. The pressing column 422 is used to contact the adjusting knob, thereby pressing the adjusting knob onto the air duct component. Since the installation position of the adjusting knob is different for different specifications of air duct components, the pressing column 422 is provided with multiple installation holes. The pressing column 422 is detachably connected to different installation holes, and multiple pressing columns 422 can be provided at the same time.

[0051] To reduce the number of pressure columns 422 and facilitate position adjustment, the pressure columns 422 are slidably connected to the pressure plate 421. Specifically, the pressure columns 422 and the pressure plate 421 can be connected via a sliding groove and a sliding rail. The above is only an exemplary description; the pressure columns 422 and the pressure plate 421 can also be connected via other assembly methods, which are not limited herein.

[0052] The drive unit 41 may include a cylinder 411. Admittedly, the drive unit 41 may also include a motor or a hydraulic pump.

[0053] Further integration Figure 5 and Figure 6As shown, in some embodiments, the base 1 includes a base plate 11, a plurality of positioning members 12, and a plurality of limiting members 13. The plurality of positioning members 12 are detachably connected to the base plate 11 and provide positioning points for the air duct components. The plurality of positioning members 12 are arranged side-by-side and spaced apart on the base plate 11. Depending on the specifications of the air duct components, one, multiple, or no positioning members 12 may be provided. To facilitate adjustment of the position of the positioning members 12, the positioning members 12 may also be slidably connected to the base plate 11.

[0054] The limiting member 13 is slidably connected to the substrate 11 and is used to contact the air duct component to limit its displacement. Specifically, the substrate 11 is provided with a first guide groove 111, a second guide groove 112, a third guide groove 113, and a fourth guide groove 114. The first guide groove 111 and the second guide groove 112 are arranged perpendicularly to each other. At least one third guide groove 113 is provided and is parallel to the first guide groove 111. At least one fourth guide groove 114 is also provided and is parallel to the second guide groove 112. Multiple limiting members 13 are respectively connected to the first guide groove 111, the second guide groove 112, the third guide groove 113, and the fourth guide groove 114. To reduce costs, the limiting members 13 are arranged one-to-one with the first guide groove 111, the second guide groove 112, the third guide groove 113, and the fourth guide groove 114.

[0055] In this embodiment, due to manufacturing errors and other reasons, the first guide groove 111 and the second guide groove 112 are approximately perpendicular to each other, the third guide groove 113 is approximately parallel to the first guide groove 111, and the fourth guide groove 114 is also approximately parallel to the second guide groove 112.

[0056] Along the parallel direction of the first guide groove 111 and the third guide groove 113, the first guide groove 111 and the third guide groove 113 are at least partially overlapped. This arrangement ensures that the limiting member 13 located at the first guide groove 111 and the limiting member 13 located at the third guide groove 113 are in a flush state, thereby more stably limiting the air duct component. Correspondingly, along the parallel direction of the second guide groove 112 and the fourth guide groove 114, the second guide groove 112 and the fourth guide groove 114 are at least partially overlapped. This arrangement also allows the limiting member 13 to more stably limit the air duct component.

[0057] To accommodate more specifications of duct components and improve the stability of the limiting component 13 in limiting the duct components, multiple third guide grooves 113 can be arranged side by side, and / or multiple fourth guide grooves 114 can be arranged side by side. The first guide groove 111, the second guide groove 112, the third guide groove 113, and the fourth guide groove 114 can be blind grooves or through grooves, which are not limited in this document.

[0058] The limiting member 13 is preferably, but not limited to, an L-shaped folded plate. In other embodiments, the limiting member 13 may also be a block structure. The limiting member 13 can be connected to the first guide groove 111, the second guide groove 112, the third guide groove 113, and the fourth guide groove 114 by means of bolts or other structures.

[0059] The base 1 may also include a top block 14 and a clearance hole 15. The top block 14 is disposed between a plurality of positioning members 12 and contacts the air duct component to support the air duct component, thereby reducing the risk of the air duct component being crushed. The top block 14 and part of the positioning members 12 are located on one side of the clearance hole 15, which penetrates the substrate 11. The clearance hole 15 can be used to avoid parts of the air duct component and can also be used to reduce the weight of the substrate 11.

[0060] In some embodiments, the support assembly 2 includes a support body 21 and a support plate 22. The support body 21 is fixed to the base plate 11, the support plate 22 is fixed to the support body 21, and a portion of the support plate 22 extends beyond the support body 21. The drive member 41 is fixed to the portion of the support plate 22 that extends beyond the support body 21.

[0061] Further integration Figure 7 As shown, the press-fitting fixture may further include a pressure regulating valve 5, a speed regulating valve 6, a reversing valve 7, and a throttle valve 8. The pressure regulating valve 5, speed regulating valve 6, and reversing valve 7 are all fixed to the support assembly 2. Specifically, the pressure regulating valve 5 and speed regulating valve 6 are fixed to the support body 21, and the speed control switch device 3 and the reversing valve 7 are fixed to opposite sides of the support plate 22. The speed regulating valve 6 is connected in parallel with the speed control switch device 3 and the reversing valve 7, respectively, while the reversing valve 7 is connected in series with the pressure regulating valve 5. The throttle valve 8 is fixed to the support assembly 2 and is connected in parallel with the speed regulating valve 6 and the speed control switch device 3, respectively. The speed control switch device 3 may include a stroke valve 32; alternatively, the speed control switch device 3 may also include a sensor.

[0062] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A press-fitting fixture, characterized in that, include: Base; A support assembly, wherein the support assembly is fixed to the base; A speed control switch device, wherein the speed control switch device is fixed to the bracket assembly; An execution component includes a drive component, a pressing component, and a paddle. The drive component is fixed to the bracket assembly and connected to the pressing component to drive the pressing component to move. The drive component includes a fast drive state and a slow drive state. The paddle includes a paddle body and a contact portion. The paddle body is connected between the pressing component and the contact portion. Along the moving direction of the press-fitting member, the projection of the contact portion overlaps with the projection of the switching portion of the speed control switch device. When the press-fitting member moves and the contact portion does not contact the switching portion, the driving member is in the fast driving state; when the contact portion abuts against the switching portion, the driving member is in the slow driving state.

2. The press-fit fixture according to claim 1, characterized in that, The paddle includes an upper paddle and a lower paddle fixed to the press-fit component. Along the moving direction of the press-fit component, the upper paddle is adjustablely connected to the lower paddle. The contact portion is provided on the upper paddle, and part of the upper paddle and the lower paddle constitute the paddle body.

3. The press-fit fixture according to claim 1, characterized in that, Along the direction of movement of the press-fit component, The contact portion is adjustablely connected to the paddle body; And / or, the paddle body is adjustablely connected to the press-fit component.

4. The press-fitting fixture according to claim 2 or 3, characterized in that, The paddle includes a waist-shaped groove, which is located on the paddle body or the contact portion.

5. The press-fitting fixture according to claim 1, characterized in that, It also includes a pressure regulating valve, a speed regulating valve, and a reversing valve fixed to the bracket assembly. The speed regulating valve is connected in parallel with the speed control switch and the reversing valve, respectively. The reversing valve is connected in series with the pressure regulating valve. The speed control switch includes a stroke valve, and the driving component includes a cylinder.

6. The press-fitting fixture according to claim 1, characterized in that, The base includes a base plate, multiple positioning members and multiple limiting members. The multiple positioning members are arranged side by side and are detachably connected to the base plate. The limiting members are slidably connected to the base plate.

7. The press-fitting fixture according to claim 6, characterized in that, The substrate is provided with a first guide groove and a second guide groove arranged perpendicularly to each other, and a plurality of the limiting members are respectively connected to the first guide groove and the second guide groove.

8. The press-fit fixture according to claim 7, characterized in that, The substrate is further provided with at least one third guide groove and at least one fourth guide groove, wherein the first guide groove and the third guide groove are arranged in parallel and along their parallel direction, the first guide groove and the third guide groove are at least partially overlapped. The second guide groove and the fourth guide groove are arranged in parallel, and along their parallel direction, the second guide groove and the fourth guide groove are at least partially overlapped; The limiting member is connected to the third guide groove and the fourth guide groove respectively.

9. The press-fitting fixture according to claim 6, characterized in that, The base also includes a top block and a clearance hole. The top block is disposed between the plurality of positioning members. The top block and some of the positioning members are located on one side of the clearance hole, which penetrates the substrate.

10. The press-fit fixture according to claim 1, characterized in that, The pressing component includes a pressing plate and a pressing column. The pressing plate is fixed to the output shaft of the driving component, and the pressing column is adjustablely located on the side of the pressing plate facing away from the driving component.

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