A tooling fixture and a riveting device

Abstract

A fixture of the present invention includes a fixture body, two abutting platforms, and two moving channels corresponding to the two abutting platforms one by one; a movable ejector pin movably installed in the two moving channels, which can move upward through the abutting platform or retract into the interior of the moving channel; an elastic pushing mechanism, which can apply a force to the movable ejector pin and push the movable ejector pin to move upward and extend out of the fixture body. Therefore, the brake pad and the rotating part to be riveted can be respectively inserted onto the caster seat by two movable ejector pins, and then the riveting equipment can be used to rivet the brake pad and the rotating part onto the caster seat simultaneously with two rivets, greatly improving the riveting speed of the brake pad, the rotating part and the caster seat, and greatly improving the production efficiency of the caster. The present invention also discloses a riveting device configured with the above fixture, which improves the production efficiency of the caster.

Description

Technical Field

[0001] The present invention relates to the field of caster production, in particular to a tooling fixture and a riveting device. Background Art

[0002] As is well known, existing casters generally include a caster base, and a rotatable roller is movably mounted on the caster base through bolts.

[0003] In order to lock the roller so that the caster has a braking function, some caster bases are provided with brake pads and a rotating member for pushing the brake pads to fit and lock the roller. In order to facilitate the assembly of the brake pads and the rotating member on the caster base, it is generally adopted to rivet the brake pads and the rotating member on the caster base with rivets.

[0004] Therefore, when an enterprise assembles and produces casters, it is necessary to rivet the brake pads and the rotating member on the caster base with two rivets in sequence, which is troublesome to operate and has low production efficiency. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a tooling fixture for facilitating caster production, and the present invention also provides a riveting device using the above tooling fixture, which can improve the production efficiency of casters.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A tooling fixture according to some embodiments of the first aspect of the present invention includes:

[0008] A fixture main body, two abutting platforms for riveting are arranged on the upper part of the fixture main body, two moving channels corresponding to the two abutting platforms one by one are opened inside the fixture main body, and the moving channels extend upward and penetrate through the abutting platforms;

[0009] Two movable ejector pins, the two movable ejector pins are movably installed in the two moving channels one by one, and the movable ejector pins can move upward along the moving channels through the abutting platforms or retract into the interior of the moving channels;

[0010] An elastic pushing mechanism, the elastic pushing mechanism is connected to the moving channel, or the elastic pushing mechanism is arranged in the moving channel, and the elastic pushing mechanism can apply a force to the movable ejector pin and push the movable ejector pin to move upward and extend out of the fixture main body.

[0011] In certain embodiments of the present invention, the two moving channels are independent of each other, and a communication port communicating with the outside is opened in the middle and lower part of each moving channel;

[0012] The elastic pushing mechanism is a fluid delivery source, which is connected to the communication ports of each of the moving channels through pipelines. The fluid delivery source can input fluid into each of the moving channels to push the movable ejector pin therein upward and pass through the abutting platform.

[0013] In some embodiments of the present invention, two of the moving channels communicate with each other. A communication port communicating with the outside is provided in the middle and lower part of one of the moving channels. The elastic pushing mechanism is a fluid delivery source, which is connected to the communication port through a pipeline. The fluid delivery source can input fluid into each of the moving channels to push the movable ejector pin therein upward and extend out of the fixture body.

[0014] In some embodiments of the present invention, the elastic pushing mechanism includes two compression springs respectively installed in two of the moving channels. One end of the compression spring abuts against the movable ejector pin, and the other end abuts against the inner wall or bottom wall of the moving channel.

[0015] In some embodiments of the present invention, a depth adjusting mechanism is provided in the middle and lower part of the moving channel. The depth adjusting mechanism is used to adjust the length of the movable ejector pin retracted into the interior of the moving channel.

[0016] In some embodiments of the present invention, a communication port is provided in the middle and lower part of each of the moving channels, and internal threads are provided on the inner walls of each of the communication ports; the depth adjusting mechanism includes two independent bolts, and the two bolts are threadedly installed at the two communication ports respectively, and the bolts can enter the interior of the moving channel along the communication ports or withdraw from the moving channel.

[0017] In some embodiments of the present invention, two wear-resistant sleeves are provided on the fixture body. Two of the moving channels are respectively provided in the two wear-resistant sleeves. The movable ejector pin movably installed in the moving channel can move upward along the wear-resistant sleeve and extend out of the fixture body or move downward and retract into the interior of the moving channel.

[0018] In some embodiments of the present invention, two of the abutting platforms are respectively provided at the upper ends of the two wear-resistant sleeves, and the abutting platform and the wear-resistant sleeve are of an integral structure.

[0019] In some embodiments of the present invention, a limiting rod is provided at the upper part of the fixture body, and the limiting rod is located on one side of one of the abutting platforms.

[0020] A riveting device according to some embodiments of the second aspect of the present invention includes a riveting machine body, and the above-mentioned tooling fixture is configured on the riveting machine body.

[0021] Advantages of the present invention: Since the present invention is provided with two abutting platforms for riveting on the fixture body, and two movable ejector pins that can respectively pass through the two abutting platforms are movably arranged inside the fixture body, the brake pads and the rotating parts to be riveted can be respectively inserted onto the caster seat through the two movable ejector pins, and then the riveting equipment can be used to rivet the brake pads and the rotating parts onto the caster seat simultaneously with two rivets, greatly improving the riveting speed of the brake pads, the rotating parts and the caster seat, and greatly improving the production efficiency of the caster;

[0022] At the same time, by adopting the above-mentioned tooling fixture, the riveting equipment of the present invention facilitates the positioning and assembly of the brake pads, the rotating parts and the caster seat, thereby improving the riveting speed of the brake pads, the rotating parts and the caster seat, and greatly improving the production efficiency of the caster. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0024] Figure 1 is a schematic structural diagram of some embodiments of the present invention;

[0025] Figure 2 is a schematic bottom structural diagram of some embodiments of the present invention;

[0026] Figure 3 is a schematic internal structural diagram of some embodiments of the present invention;

[0027] Figure 4 is a schematic structural diagram when the movable ejector pin in some embodiments of the present invention retracts into the moving channel;

[0028] Figure 5 is a schematic structural diagram when the depth adjustment mechanism in some embodiments of the present invention adjusts the depth of the moving channel to become deeper;

[0029] Figure 6 is a schematic diagram of the use state when some embodiments of the present invention are used to rivet the caster seat, the brake pads and the rotating parts;

[0030] Figure 7 is a schematic diagram of the use state from another angle when some embodiments of the present invention are used to rivet the caster seat, the brake pads and the rotating parts; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than three, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0035] Referring to Figure 1 and Figure 3 and

[0036] Referring to Figure 2 、 Figure 3 and Figure 4, in order to enable the elastic pushing mechanism to better push the movable ejector pin 200 to move upward and extend out of the fixture body 100, in some embodiments of the present invention, the two moving channels 111 are independent of each other. A communication port 112 communicating with the outside is provided in the middle and lower part of each moving channel 111. The elastic pushing mechanism is a fluid delivery source. The fluid delivery source is connected to the communication port 112 of each of the moving channels 111 through a pipeline. The fluid delivery source can input fluid into each moving channel 111 to push the movable ejector pin 200 therein to move upward and pass through the abutment table 110. Specifically, the above-mentioned fluid delivery source can be a high-pressure gas source or a high-pressure liquid source (not shown in the figure). The high-pressure gas source or high-pressure liquid source transports high-pressure gas or liquid into the moving channel 111, and then the gas or liquid can flow along the moving channel 111 and push the movable ejector pin 200 to move upward and pass through the abutment table 110 and extend out of the fixture body 100. By adopting the above structure, the structure of the elastic pushing mechanism can be made simpler, and the movable ejector pin 200 can be better pushed to extend out of the abutment table 110. At the same time, it is also convenient for the movable ejector pin 200 to contract back into the interior of the moving channel 111 when being extruded by an external force.

[0037] In some embodiments of the present invention, the two moving channels 111 communicate with each other. A communication port 112 communicating with the outside is provided in the middle and lower part of one of the moving channels 111. The elastic pushing mechanism is a fluid delivery source. The fluid delivery source is connected to the communication port 112 through a pipeline. The fluid delivery source can input fluid into each moving channel 111 to push the movable ejector pin 200 therein to move upward and extend out of the fixture body 100. Since the two moving channels 111 communicate with each other, when the fluid delivery source transports fluid into one of the moving channels 111, the fluid can fill the two moving channels 111 and push the movable ejector pins 200 in the two moving channels 111 to move upward and extend out of the fixture body 100, which helps to simplify the structure of the fixture body 100.

[0038] In some embodiments of the present invention, the elastic pushing mechanism includes two compression springs (not shown in the figure) respectively installed in the two moving channels 111. One end of the compression spring abuts against the movable ejector pin 200, and the other end abuts against the inner wall or bottom wall of the moving channel 111. By adopting the above structure, the elastic force of the compression spring can be used to push the movable ejector pin 200 to move upward and extend out of the fixture body 100, and it is also convenient for the movable ejector pin 200 to contract back into the interior of the moving channel 111 when being extruded by an external force. The structure is simple and the manufacturing cost is low.

[0039] Refer to Figure 2 、 Figure 4 and Figure 5, in order to facilitate the adjustment of the position where the movable ejector pin 200 retracts into the moving channel 111, in some embodiments of the present invention, a depth adjustment mechanism for adjusting the internal depth of the moving channel 111 is provided in the middle and lower part of the moving channel 111. Specifically, a communication port 112 is provided in the middle and lower part of each moving channel 111, and internal threads are provided on the inner wall of each communication port 112. The depth adjustment mechanism includes two independent bolts 300, and the two bolts 300 are threadedly installed at the two communication ports 112 in a one-to-one correspondence.

[0040] In order to enable the fluid delivery source to still be able to input fluid into the communication port 112 when the elastic pushing mechanism is a fluid delivery source, in some embodiments of the present invention, a through hole 310 penetrating the bolt 300 is provided in the middle of the bolt 300. Therefore, the fluid delivery source can fill high-pressure gas or liquid, such as oil, into the moving channel 111 through the through hole 310.

[0041] By screwing the bolt 300 in the forward direction, the bolt 300 can be screwed into the moving channel 111 along the communication port 112 to reduce the internal depth of the moving channel 111. At this time, the position where the movable ejector pin 200 retracts into the moving channel 111 becomes shallower; if the bolt 300 is rotated in the reverse direction, the bolt 300 can be screwed out of the moving channel 111 along the communication port 112, increasing the internal depth of the moving channel 111. At this time, the movable ejector pin 200 can retract into a deeper position inside the moving channel 111. By adopting the above structure, the depth of the moving channel 111 can be adjusted to adapt to movable ejector pins 200 of different lengths.

[0042] Of course, in addition to the above structure, the depth adjustment mechanism can also adopt other structures. In some embodiments of the present invention, the depth adjustment mechanism includes a plug and a plurality of height holes (not shown in the figure) opened on the outer peripheral wall of the moving channel 111 along the up-down direction. By inserting the plug into different height holes, the height of the plug inserted into the moving channel 111 can be adjusted. At this time, when the movable ejector pin 200 retracts into the moving channel 111, it can abut against the plug at different heights, thereby adjusting the position where the movable ejector pin 200 retracts into the moving channel 111.

[0043] Refer to Figure 4 and Figure 5In order to facilitate the production and installation of the jig and prevent the movable ejector 200 from wearing the moving channel 111 during the repeated up and down movement, in some embodiments of the present invention, two wear-resistant sleeves 400 are provided on the jig body 100, and the two moving channels 111 are provided in the two wear-resistant sleeves 400 one by one, and the two movable ejectors 200 are movably installed in the two wear-resistant sleeves 400 one by one, and the movable ejector 200 can move upward along the wear-resistant sleeves 400 and extend out of the jig body 100 or move downward and retract into the moving channel 111. Specifically, the wear-resistant sleeve 400 can be made of wear-resistant materials, such as copper, ceramics, or stainless steel. By adopting the above structure, the production of the jig can be made simpler, and the movable ejector 200 can be prevented from wearing the moving channel 111.

[0044] In order to further simplify the structure of the jig, in some embodiments of the present invention, two abutment platforms 110 are arranged at the upper ends of two wear-resistant sleeves 400 in a one-to-one correspondence, and the abutment platforms 110 and the wear-resistant sleeves 400 are an integrated structure. That is, the abutment platforms 110 and the wear-resistant sleeves 400 are integrally formed, such as integrally cast, so the abutment platforms 110 and the wear-resistant sleeves 400 can be integrally cast using a wear-resistant and high-hardness metal material.

[0045] Reference Figure 1 , Figure 6 and Figure 7 When some embodiments of the present invention are applied to caster production, one movable ejector pin 200 on the jig body 100 moves upward through the abutment platform 110 and assembles the caster seat 600 and the brake pad 610 together, while another movable ejector pin 200 on the jig body 100 moves upward through the abutment platform 110 and assembles the caster seat 600 and the rotating member 620 together, thereby achieving one-time positioning and assembly of the caster seat 600, the brake pad 610 and the rotating member 620. At this time, a riveting device (not shown in the figure) can be used to drive the two simultaneously. The two rivets move downward to align with the two movable ejectors 200. During the process of the two rivets squeezing the two movable ejectors 200 to retract back into the movable channel 111, one of the rivets pierces the caster seat 600 and the brake pad 610 together, and the other rivet pierces the caster seat 600 and the rotating member 620 together. The riveting is completed in the process of the lower ends of the two rivets abutting and colliding with the two abutting platforms 110 respectively, thereby making it possible to rivet the brake pad 610 and the rotating member 620 to the caster seat 600 at one time, greatly improving the production efficiency of the caster.

[0046] In order to prevent the caster seat 600 from deflecting relative to the fixture body 100 when the tooling fixture is used for riveting the caster during production, in some embodiments of the present invention, a limiting rod 500 is provided on the upper part of the fixture body 100, and the limiting rod 500 is located on one side of one of the abutting platforms 110. Therefore, after the movable ejector pin 200 penetrates and assembles the caster seat 600, the brake pad 610 and the rotating member 620, during the process of the riveting device using a rivet to squeeze and push the movable ejector pin 200 to retract into the movement channel 111 and abut against the abutting platform 110 for stamping and riveting, if the caster seat 600 rotates, the caster seat 600 can be engaged with the limiting rod 500, thereby preventing the caster seat from deflecting relative to the fixture body 100.

[0047] A riveting device according to some embodiments of the second aspect of the present invention includes a riveting machine main body (not shown in the figure), and the above-mentioned tooling fixture is configured on the riveting machine main body, which is convenient for the positioning and assembly of the brake pad, the rotating member and the caster seat, thereby improving the riveting speed of the brake pad, the rotating member and the caster seat, and greatly improving the production efficiency of the caster.

[0048] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A tooling fixture, characterized in that, Including: A fixture main body (100), two abutting platforms (110) for riveting are arranged on the upper part of the fixture main body (100), two moving channels (111) corresponding to the two abutting platforms (110) one by one are opened inside the fixture main body (100), and the moving channels (111) extend upward and penetrate through the abutting platforms (110); Two movable ejector pins (200), the two movable ejector pins (200) are movably installed in the two moving channels (111) one by one, and the movable ejector pin (200) can move upward along the moving channel (111) through the abutting platform (110) or retract into the inside of the moving channel (111); An elastic pushing mechanism, the elastic pushing mechanism is connected to the moving channel (111), or the elastic pushing mechanism is arranged in the moving channel (111), and the elastic pushing mechanism can apply force to the movable ejector pin (200) and push the movable ejector pin (200) to move upward and extend out of the fixture main body (100); The two moving channels (111) communicate with each other, a communication port (112) communicating with the outside is opened in the middle and lower part of one of the moving channels (111), the elastic pushing mechanism is a fluid delivery source, the fluid delivery source is connected to the communication port (112) through a pipeline, and the fluid delivery source can input fluid into each moving channel (111) to push the movable ejector pin (200) therein to move upward and extend out of the fixture main body (100); A depth adjusting mechanism for adjusting the internal depth of the moving channel (111) is arranged in the middle and lower part of the moving channel (111); A communication port (112) is opened in the middle and lower part of each moving channel (111), and internal threads are opened on the inner walls of each communication port (112); the depth adjusting mechanism includes two independent bolts (300), the two bolts (300) are threadedly installed at the two communication ports (112) one by one, and the bolts (300) can be screwed into the moving channel (111) along the communication port (112) or screwed out of the moving channel (111); A through hole (310) penetrating through the bolt (300) is opened in the middle of the bolt (300), so that the fluid delivery source can fill high-pressure gas or liquid into the moving channel (111) through the through hole (310).

2. The fixture according to claim 1, characterized in that, Two wear-resistant sleeves (400) are arranged on the fixture main body (100), the two moving channels (111) are arranged in the two wear-resistant sleeves (400) one by one, the two movable ejector pins (200) are movably installed in the two wear-resistant sleeves (400) one by one, and the movable ejector pin (200) can move upward along the wear-resistant sleeve (400) and extend out of the fixture main body (100) or move downward and retract into the inside of the moving channel (111).

3. The tooling fixture according to claim 2, wherein Two of the abutting platforms (110) are correspondingly arranged at the upper ends of the two wear-resistant sleeves (400), and the abutting platform (110) and the wear-resistant sleeve (400) are of an integral structure.

4. The fixture according to claim 1, wherein a limiting rod (500) is arranged on the upper part of the fixture main body (100), and the limiting rod (500) is located on one side of one of the abutting platforms (110).

5. A riveting device, characterized in that it includes a riveting machine main body, and the riveting machine main body is configured with a fixture as described in any one of claims 1 to 4.

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