Riveting tool for workpieces with various thicknesses and rivets with various sizes

Abstract

The utility model discloses a rivet pressing tool for workpieces with various thicknesses and rivets with various sizes, which is characterized in that the distance between an ejector rod guide cylinder and the crimping surface of a base is adjusted through the screw-thread fit of the ejector rod guide cylinder and the base, so that the crimping assembly of the parts with various thicknesses can be ensured; the relative position between the limiting block and the ejector rod is adjusted through the threaded fit between the ejector rod and the ejector rod limiting block, the maximum extension distance of the ejector rod relative to the ejector rod guide cylinder is adjustable through the fit between the ejector rod limiting block and the inner side assembly section of the ejector rod guide cylinder, and the maximum extension distance of the ejector rod relative to the ejector rod guide cylinder is limited; therefore, the rivets with various lengths and sizes can be crimped, and the mutual extrusion force and the extrusion degree between the crimping surfaces of the ejector rod and the base are controllable by limiting the maximum compression distance of the rivets; and different top iron blocks can be arranged on the pressure-bearing surface of the base, so that the device is suitable for various pressing rivet assembly processes.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a riveting tool for workpieces with various thicknesses and rivets with various sizes. Background Art

[0002] Manual riveting tools generally make the rivet expand and deform by the mutual extrusion of a hammer head and a backing iron to achieve the assembly connection of parts. However, the maximum relative distance between the hammer head and the backing iron of conventional riveting tools is generally not adjustable. Therefore, the practicability of conventional manual riveting tools for riveting assembly between parts with different thicknesses is not high. Moreover, the mutual extrusion force and extrusion degree between the hammer head and the backing iron of conventional riveting tools during the riveting process are determined by the pressure applied by the operator, which is uncontrollable, and it is easy to occur that the riveting is not firm or the rivet and the part are damaged due to excessive extrusion. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a riveting tool for workpieces with various thicknesses and rivets with various sizes, with controllable extrusion force and extrusion degree and wide application range.

[0004] The purpose of the utility model is realized as follows:

[0005] A riveting tool for workpieces with various thicknesses and rivets with various sizes includes a base. The base is in a C shape. A top rod guiding cylinder is in threaded fit with the top wall of the base vertically. A locking nut is in threaded fit with the upper end of the top rod guiding cylinder. The locking nut cooperates with the base to lock the vertical position of the top rod guiding cylinder. The upper surface of the bottom wall of the base is a bearing surface.

[0006] A top rod limiting block is slidably fitted in the inner hole of the top rod guiding cylinder. A top rod limiting table surface is arranged at the lower part of the inner hole of the top rod guiding cylinder. The lower end surface of the top rod limiting block cooperates with the top rod limiting table surface to limit the lower limit position of the top rod limiting block. A top rod is in threaded fit with the top rod limiting block vertically. The lower end surface of the top rod passes through the top rod guiding cylinder and is used to achieve the riveting function. A spring is sleeved on the top rod. A spring cover plate is arranged on the top rod. A spring limiting table is arranged in the top rod guiding cylinder. The two ends of the spring act on the spring cover plate on the top rod and the spring limiting table in the top rod guiding cylinder respectively. A pressure rod retaining cover is in threaded fit with the upper end of the top rod guiding cylinder. The pressure rod retaining cover axially limits the spring cover plate on the top rod. A directional square head is arranged at the top of the top rod. A top rod through hole is arranged on the pressure rod retaining cover. The top rod through hole gives way to the directional square head.

[0007] A vertical plate is erected on the side part of the top wall of the base. A pressure rod is hinged to the top of the vertical plate. The free end of the pressure rod is used to apply pressure to the top rod.

[0008] Preferably, a guiding lug is arranged on the top rod limiting slider along the radial direction. A directional card slot is arranged on the inner wall of the top rod guiding cylinder. The guiding lug is slidably fitted in the directional card slot.

[0009] Preferably, a locking buckle is slidably fitted on the directional square head. The two ends of the locking buckle are provided with buckle lugs, and corresponding lock holes are provided on the pressure rod cover. After the buckle lugs on the locking buckle are inserted into the lock holes on the pressure rod cover, they are then inserted into the directional card slots in the ejector rod guide cylinder to form circumferential positioning of the ejector rod and the pressure rod cover.

[0010] Preferably, a pressure rod fixing lug is provided at the top of the vertical plate, and the pressure rod fixing lug is hinged to the pressure rod by a bolt.

[0011] Preferably, a top iron block for placing the workpiece is provided on the bearing surface of the base.

[0012] Preferably, the lower part of the ejector rod guide cylinder is conical.

[0013] Preferably, the inner hole of the lower part of the ejector rod guide cylinder is an ejector rod guide hole, and the ejector rod guide hole is slidably fitted with the lower end of the ejector rod.

[0014] Preferably, the spring cover plate on the ejector rod is slidably fitted with the inner wall of the ejector rod guide cylinder.

[0015] Due to the adoption of the above technical solutions, the utility model has the following beneficial effects:

[0016] The present invention realizes the adjustment of the distance between the ejector rod guide cylinder and the pressure contact surface of the base through the threaded fit between the ejector rod guide cylinder and the base, so as to ensure the press-fitting assembly of parts with various thicknesses; the relative position between the limit block and the ejector rod is adjusted through the threaded fit between the ejector rod and the ejector rod limit block, and then through the fit between the ejector rod limit block and the inner assembly cross-section of the ejector rod guide cylinder, the maximum outward extension distance of the ejector rod relative to the ejector rod guide cylinder (i.e., the maximum compression distance of the rivet) is adjustable, and the maximum outward extension distance of the ejector rod relative to the ejector rod guide cylinder is limited, so as to ensure the press-fitting of rivets with various length dimensions, and by limiting the maximum compression distance of the rivet, the mutual extrusion force and extrusion degree between the ejector rod and the pressure contact surface of the base are ensured to be controllable; different top iron blocks can also be provided on the bearing surface of the base, which is suitable for various press-riveting assembly processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1a is a schematic structural diagram of the utility model;

[0018] Figure 1b is a top view schematic diagram of the utility model;

[0019] Figure 1c is Figure 1b the B-B cross-sectional view schematic diagram of;

[0020] Figure 2 is a schematic structural diagram of the locking buckle;

[0021] Figure 3Schematic structural view of the pressure rod retaining cover;

[0022] Figure 4a Schematic structural view of the ejector rod guide cylinder;

[0023] Figure 4b For Figure 4a Schematic C-C sectional view of

[0024] Figure 5 Schematic structural view of the base;

[0025] Figure 6 Schematic structural view of the ejector rod;

[0026] Figure 7 Schematic structural view of the ejector rod limit block. Detailed implementation mode

[0027] A riveting tool for workpieces with multiple thicknesses and rivets with multiple sizes, including a base 06. The base 06 is C-shaped. A top rod guide cylinder 05 is threadedly engaged vertically on the top wall of the base 06. A locking nut 04 is threadedly engaged at the upper end of the top rod guide cylinder 05. The locking nut 04 cooperates with the base 06 to lock the vertical position of the top rod guide cylinder 05. The upper surface of the bottom wall of the base is a bearing surface.

[0028] An ejector rod limit block 10 is slidably engaged in the inner hole of the top rod guide cylinder 05. A top rod limit table surface 05-4 is provided at the lower part of the inner hole of the top rod guide cylinder 05. The lower end surface of the ejector rod limit block 10 cooperates with the top rod limit table surface 05-4 to define the lower limit position of the ejector rod limit block 10. A top rod 08 is threadedly engaged vertically on the ejector rod limit block 10. The lower end surface of the top rod 08 passes through the top rod guide cylinder 05 and is used to achieve the riveting function. A spring 09 is sleeved on the top rod 08. A spring cover plate 08-2 is provided on the top rod 08. A spring limit table 05-2 is provided in the top rod guide cylinder 05. The two ends of the spring 09 respectively act on the spring cover plate 08-2 on the top rod 08 and the spring limit table 05-2 in the top rod guide cylinder 05. A pressure rod retaining cover 03 is threadedly engaged at the upper end of the top rod guide cylinder 05. The pressure rod retaining cover 03 axially limits the spring cover plate 08-2 on the top rod 08. A directional square head 08-1 is provided at the top of the top rod 08. A top rod through hole 03-3 is provided on the pressure rod retaining cover 03. The top rod through hole 03-3 provides clearance for the directional square head 08-1. A locking buckle 02 is slidably engaged on the directional square head 08-1. The directional square head 08-1 circumferentially positions the locking buckle 02. Snap ear pieces 02-1 are provided at both ends of the locking buckle 02. Corresponding lock holes 03-2 are provided on the pressure rod retaining cover 03. After the snap ear pieces 02-1 on the locking buckle 02 are inserted into the lock holes 03-2 on the pressure rod retaining cover 03, they are then inserted into the directional card slots in the top rod guide cylinder to form circumferential positioning of the top rod and the pressure rod retaining cover.

[0029] On the side of the top wall of the base 06, there is a vertical plate standing upright. At the top of the vertical plate, there is a pressure lever 01 hinged, and the free end of the pressure lever 01 is used to apply pressure to the ejector rod. On the ejector rod limit slider 10, there are guide lugs 10-2 arranged radially. On the inner wall of the ejector rod guide cylinder 05, there are directional card slots 05-3, and the guide lugs 10-2 are slidably fitted in the directional card slots 05-3. At the top of the vertical plate, there is a pressure lever fixing lug 06-1, and the pressure lever fixing lug 06-1 hinges the pressure lever 01 through a bolt 07.

[0030] The lower part of the ejector rod guide cylinder 05 is conical. The inner hole of the lower part of the ejector rod guide cylinder 05 is the ejector rod guide hole 05-5, and the lower end of the ejector rod 08 is slidably fitted with the ejector rod guide hole 05-5. The spring cover plate 08-2 on the ejector rod 08 is slidably fitted with the inner wall of the ejector rod guide cylinder 05.

[0031] Specifically:

[0032] After the base 06 is fixed on a horizontal plane, the outer stud 05-1 provided on the ejector rod guide cylinder 05 is fitted and installed with the threaded hole 06-2 provided on the base 06; the lock nut 04 is fitted and installed with the outer stud 05-1 provided on the ejector rod guide cylinder 05 through the inner thread; the guide lugs 10-2 provided on both sides of the ejector rod limit slider 10 are fitted and installed with the directional card slots 05-3 provided on both sides of the inner side of the ejector rod guide cylinder 05; the spring 09 is placed on the spring limit platform 05-2 along the inner hole of the ejector rod guide cylinder 05; the pressure distance adjustment stud 08-3 provided on the ejector rod 08 is fitted and installed with the thread 10-1 (M10) provided on the ejector rod limit block 10; the inner thread 03-1 provided on the pressure lever retaining cover 03 is fitted and installed with the outer stud 05-1 provided on the ejector rod guide cylinder 05; the snap limit hole 02-2 provided on the locking snap 02 is fitted with the directional square head 08-1 provided on the ejector rod 08, and is fitted and installed with the lock hole 03-2 provided on the pressure lever retaining cover 03 through the snap lug 02-1 provided on the locking snap 02; finally, the pressure lever 01 and the pressure lever fixing lug 06-1 provided on the base 06 are fitted and installed through a bolt 07.

[0033] Working principle:

[0034] After the riveting tool is assembled, fix the base 06 on a horizontal workbench. After placing the rivet on the riveting part into the pressing area, press down the pressure lever 01 (it can be pressed by a press). Under the fixing action of the bolt 07, the pressure lever pushes the ejector rod 08 to move downward, so as to realize the pressing of the rivet; after each pressing is completed, release the pressure lever 01, and the ejector rod 08 will reset under the action of the upper end face of the spring 09 and the spring cover plate 08-2, reducing the pressing reset process and saving the assembly time.

[0035] According to the thickness of the parts to be crimped and assembled, after loosening the lock nut 04, the distance between the top rod guide cylinder and the base crimping surface can be adjusted up and down through the thread fit between the outer stud 05-1 provided on the top rod guide cylinder 05 and the threaded hole 06-2 provided on the base 06, so as to ensure the insertion of workpieces with various thicknesses. After adjusting the height of the top rod guide cylinder 05 according to the thickness requirement of the parts, the top rod guide cylinder 05 is locked and limited by the lock nut 04.

[0036] After removing the upper lock buckle 02, tools such as a wrench can be used to rotate the directional square head 08-1 at the upper end of the top rod 08, and then the top rod limit block 10 that is in threaded fit with the top rod 08 can be adjusted up and down, so as to realize the adjustable maximum extension distance of the top rod 08 relative to the top rod guide cylinder 05 (i.e., the maximum compression distance of the rivet); moreover, through the cooperation between the lower end surface of the top rod limit block 10 and the top rod limit table surface provided on the inner side of the top rod guide cylinder 05, the maximum extension distance of the top rod 08 relative to the top rod guide cylinder 05 is limited; after adjusting the maximum extension distance of the top rod 08 relative to the top rod guide cylinder 05 according to the different compression amount dimensions of the rivet, the top rod 08 and the pressure rod cover 03 are locked circumferentially by the lock buckle 02 to prevent the top rod 08 and the pressure rod cover 03 from rotating relative to the top rod guide cylinder 05 and the top rod limit block 10, ensure that the pressure rod cover 03 is not loose, and ensure that the maximum extension distance of the top rod 08 relative to the top rod guide cylinder 05 will not change due to the rotation of the top rod 08 relative to the top rod limit block 10 during the crimping process; thereby ensuring that under the same crimping requirement, the mutual extrusion force and extrusion degree between the top rod and the base crimping surface are stable and controllable.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A riveting tool for workpieces of various thicknesses and rivets of various sizes, characterized by: The base is C-shaped, the top wall of the base is vertically threaded with a push rod guide cylinder, the upper end of the push rod guide cylinder is threaded with a locking nut, the locking nut cooperates with the base to lock the vertical position of the push rod guide cylinder, and the upper surface of the bottom wall of the base is a pressure-bearing surface; A push rod limit block is slidably fitted in the inner hole of the push rod guide cylinder, and a push rod limit table is provided at the lower part of the inner hole of the push rod guide cylinder. The lower end surface of the push rod limit block cooperates with the push rod limit table to limit the lower limit position of the push rod limit block. A push rod is fitted with a vertical thread on the upper edge of the push rod limit block. The lower end surface of the push rod passes through the push rod guide cylinder and is used to realize the riveting function. A spring is sleeved on the push rod, and a spring cover is provided on the push rod. A spring limit table is provided in the push rod guide cylinder. The two ends of the spring act on the spring cover on the push rod and the spring limit table in the push rod guide cylinder respectively. The upper end thread of the push rod guide cylinder is fitted with a pressure rod stop cover, and the pressure rod stop cover axially limits the spring cover on the push rod. A directional square head is provided on the top of the push rod, and a push rod through hole is provided on the pressure rod stop cover, and the push rod through hole gives way to the directional square head. A vertical plate is vertically arranged on the side of the top wall of the base, a pressure rod is hinged on the top of the vertical plate, and the free end of the pressure rod is used to apply pressure to the top rod.

2. A riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1, characterized in that: A guide ear piece is radially arranged on the push rod limiting sliding block, and a directional clamping groove is arranged on the inner wall of the push rod guide cylinder, and the guide ear piece is slidably matched in the directional clamping groove.

3. A riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 2, characterized in that: A locking buckle is slidably fitted on the directional square head, and buckle ears are provided at both ends of the locking buckle. A corresponding locking hole is provided on the pressure rod cover. The buckle ears on the locking buckle are plugged into the locking holes on the pressure rod cover, and then plugged into the directional slot in the push rod guide cylinder, forming circumferential positioning of the push rod and the pressure rod cover.

4. A riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1, characterized in that: A pressure rod fixing ear piece is arranged on the top of the vertical plate, and the pressure rod fixing ear piece is hinged to the pressure rod through bolts.

5. The riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1, characterized in that: A top iron block for placing workpieces is arranged on the pressure-bearing surface of the base.

6. A riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1, characterized in that: The lower part of the ejector guide cylinder is conical.

7. A riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1 or 6, characterized in that: The lower inner hole of the ejector rod guide cylinder is the ejector rod guide hole, and the ejector rod guide hole is slidably matched with the lower end of the ejector rod.

8. The riveting tool for workpieces of various thicknesses and rivets of various sizes according to claim 1, characterized in that: The spring cover plate on the ejector rod is slidably matched with the inner wall of the ejector rod guide cylinder.

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