Eight-shaft buckling device of air spring hoop electronic servo pressing machine

Abstract

The utility model provides an eight-shaft buckling and pressing device of an air spring hoop electronic servo pressing machine. The eight-shaft buckling and pressing device solves the technical problem that the reliability of press-fitting connection of a hoop, a bag skin and a shell of an existing automobile air spring is poor. The device comprises a workpiece positioning mechanism and a press-fitting mechanism, and is characterized in that the press-fitting mechanism comprises an electric cylinder mounting seat, a guide seat and electric cylinder press-fitting units, the guide seat is arranged on the inner side of the electric cylinder mounting seat, the electric cylinder press-fitting units are circumferentially distributed on the electric cylinder mounting seat, and the output ends of the electric cylinder press-fitting units are connected with guide blocks through connectors; the guide block penetrates through the guide hole of the guide seat and is in sliding guide fit with the guide hole, the front end of the guide block is detachably provided with a buckling tool, one end of each press-fitting part is provided with an upper bulge and a lower notch, the other end of each press-fitting part is provided with an upper notch and a lower bulge, and when the arc press-fitting surfaces of all the buckling tools are connected, the upper bulges and the upper notches of the adjacent press-fitting parts are spliced to form the buckling tool. And the lower bulge is spliced with the lower notch.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, and particularly relates to an eight-axis crimping device of an air spring clamp electronic servo press. Background Art

[0002] The annular bladder of an automotive air spring is fixed to the housing by a clamp, and this operation is generally achieved by press-fitting with a press. In the prior art, the press-fitting of a circle of the clamp is realized step by step continuously, and there is local non-press-fitting or local repeated press-fitting, which will lead to unreliable connection.

[0003] Therefore, we propose an eight-axis crimping device of an air spring clamp electronic servo press. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an eight-axis crimping device of an air spring clamp electronic servo press, which overcomes the deficiencies of the prior art, is reasonably designed, is convenient to use, and solves the technical problem of poor reliability of the press-fitting connection of the clamp, bladder and housing of the existing automotive air spring.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions:

[0008] An eight-axis crimping device of an air spring clamp electronic servo press, including a workpiece positioning mechanism, a feeding mechanism and a press-fitting mechanism. The workpiece positioning mechanism is installed at the output end of the feeding mechanism, and the feeding mechanism transfers the workpiece positioning mechanism to the press-fitting mechanism. It is characterized in that:

[0009] The press-fitting mechanism includes an electric cylinder mounting seat, a guide seat and an electric cylinder press-fitting unit. The guide seat is arranged inside the electric cylinder mounting seat, and a plurality of electric cylinder press-fitting units are distributed in a circumferential shape on the electric cylinder mounting seat. The electric cylinder press-fitting unit includes an electric cylinder, a connecting head, a guide block and a crimping tool. The output end of each electric cylinder is connected to the guide block through the connecting head. The guide block penetrates through the guide hole of the guide seat and is in sliding guide fit with the guide hole. The front end of the guide block is detachably installed with a crimping tool, and an arc-shaped press-fitting surface is formed on the press-fitting part of the crimping tool;

[0010] One end of the press-fitting part forms an upper protrusion and a lower notch, and the other end forms an upper notch and a lower protrusion. When the arc-shaped press-fitting surfaces of each crimping tool are connected, the upper protrusion and the upper notch of the adjacent press-fitting parts are spliced, and the lower protrusion and the lower notch are spliced.

[0011] Further, there are eight electric cylinder press-fitting units.

[0012] Furthermore, the workpiece positioning mechanism includes an inner positioning bushing and an outer positioning box. The inner positioning bushing includes an upper sleeve and a lower positioning shaft which are coaxially connected. The upper sleeve is placed inside the outer positioning box and their bottom walls are fixedly attached. An annular groove is formed between the side wall of the upper sleeve and the side wall of the outer positioning box. A plurality of slots extending from top to bottom are formed in the side wall of the upper sleeve to form support arms. An arc-shaped positioning groove is formed on the outer side of the support arms. The lower positioning shaft penetrates downward through the outer positioning box, and a positioning concave stop is formed at the upper end of the outer positioning box.

[0013] Furthermore, the feeding mechanism includes a chuck, a vertical feeding unit and a horizontal feeding unit. The chuck is installed at the output end of the vertical feeding unit, and the vertical feeding unit is installed at the output end of the horizontal conveying unit.

[0014] Furthermore, front and rear end slots are formed at the front and rear ends of the guiding block. A first limiting step is formed at the bottom of the front end slot. The crimping tool includes a pressing part and an inverted L-shaped connecting part. The horizontal part of the inverted L-shaped connecting part is embedded in the front end slot and is fixedly attached to the horizontal end face of the first limiting step, its vertical part is fixedly attached to the vertical face of the first limiting step and its lower end is connected to the pressing part. Limiting convex stops extend inward from the two side walls of the rear end slot. A groove is formed between the head and the main body of the connecting head. The head of the connecting head is embedded in the rear end slot and its groove is in limiting cooperation with the limiting convex stops.

[0015] Furthermore, a second limiting step is provided on the upper part of the chuck jaw.

[0016] Furthermore, fences are respectively provided on the left and right sides and the front side of the device.

[0017] Furthermore, a maintenance platform with a slope is provided inside the fence of the device.

[0018] (III) Beneficial Effects

[0019] The present utility model provides an eight-axis crimping device for an air spring clamp electronic servo press, which has the following beneficial effects: By synchronously crimping with multiple electric cylinder crimping units, the crimping efficiency can be improved. At the same time, the pressing parts of the crimping tools of each electric cylinder crimping unit can be mutually combined to form a closed circle, ensuring that one-time crimping can be achieved, and there is no local un-crimping or local repeated crimping, ensuring the reliability of the crimping connection of the clamp, the bladder skin and the housing. Description of the Drawings

[0020] Figure 1 It is a top view structural schematic diagram of the present utility model;

[0021] Figure 2Schematic three-dimensional structure diagram of the present utility model;

[0022] Figure 3 is Figure 2 schematic diagram of the structure after partial enlargement at position A in

[0023] Figure 4 schematic diagram of the structure of the guide seat, guide block, crimping tool and chuck in cooperation in the present utility model;

[0024] Figure 5 is Figure 4 schematic diagram of the structure after partial enlargement at position C in

[0025] Figure 6 exploded schematic diagram of the connection head, guide block and crimping tool in cooperation in the present utility model;

[0026] Figure 7 schematic diagram of the structure of the workpiece positioning mechanism in the present utility model;

[0027] Figure 8 is Figure 7 schematic diagram of the structure after partial enlargement at position B in

[0028] Figure 9 exploded schematic diagram of the workpiece positioning mechanism in the present utility model;

[0029] In the figure:

[0030] 1. Workpiece positioning mechanism;

[0031] 11. Outer positioning box;

[0032] 111. Positioning concave stop;

[0033] 12. Inner positioning bushing;

[0034] 121. Upper sleeve;

[0035] 1211. Groove;

[0036] 1212. Support arm;

[0037] 12121. Positioning groove;

[0038] 122. Lower positioning shaft;

[0039] 2. Feeding mechanism;

[0040] 2.1. Horizontal feeding unit;

[0041] 2.2. Vertical feeding unit;

[0042] 2.3. Chuck;

[0043] 231. Claw;

[0044] 3. Press-fitting mechanism;

[0045] 31. Electric cylinder;

[0046] 32. Electric cylinder mounting seat;

[0047] 321. Electric cylinder mounting plate;

[0048] 322. Flange plate;

[0049] 33. Connector;

[0050] 331. Groove;

[0051] 34. Guide block;

[0052] 341. Rear-end card slot;

[0053] 342. Limit convex stop;

[0054] 343. Front-end card slot;

[0055] 344. First limit step;

[0056] 35. Guide seat;

[0057] 36. Crimping tool;

[0058] 361. Press-fitting part;

[0059] 3611. Arc-shaped press-fitting surface;

[0060] 36111. Upper protrusion;

[0061] 36112. Lower notch;

[0062] 36113. Upper notch;

[0063] 36114. Lower protrusion;

[0064] 362. Inverted L-shaped connecting part;

[0065] 4. Enclosure;

[0066] 5. Maintenance platform. Detailed implementation manners

[0067] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0068] Refer to the attached Figures 1-9 , an eight-axis swaging device for an air spring clamp electronic servo press, comprising a workpiece positioning mechanism 1, a feeding mechanism 2 and a pressing mechanism 3;

[0069] The workpiece positioning mechanism 1 is installed at the output end of the feeding mechanism 2. The workpiece positioning mechanism 1 includes an inner positioning bushing 12 and an outer positioning box 11. The inner positioning bushing 12 includes an upper sleeve 121 and a lower positioning shaft 122 which are coaxially connected. The upper sleeve 121 is placed inside the outer positioning box 11 and their bottom walls are in contact and fixed by bolts. An annular groove is formed between the side wall of the upper sleeve 121 and the side wall of the outer positioning box 11. A plurality of slots 1211 extending downward are formed on the side wall of the upper sleeve 121 to form support arms 1212. An arc-shaped positioning groove 12121 is formed on the outer side of the support arms 1212. The lower positioning shaft 122 penetrates downward through the outer positioning box 11. A positioning concave stop 111 is formed at the upper end of the outer positioning box 11. The bottom of the outer positioning box 11 is supported on the horizontal end surface of the second limiting step of each claw 231. The lower positioning shaft 122 of the inner positioning bushing is clamped and fixed by the claws 231 of the chuck 2.3.

[0070] The feeding mechanism 2 includes a chuck 2.3, a vertical feeding unit 2.2 and a horizontal feeding unit 2.1. The chuck 2.3 is installed at the output end of the vertical feeding unit 2.2. The vertical feeding unit 2.2 is installed at the output end of the horizontal conveying unit. A second limiting step is provided on the upper part of the claws 231 of the chuck 2.3.

[0071] The press-fitting mechanism 3 includes an electric cylinder mounting base 32, a guide base 35, and an electric cylinder press-fitting unit. The electric cylinder mounting base 32 includes eight side plates 321 that enclose a regular polygon between a pair of upper and lower flange plates 322, and columns for supporting the flange plates 322. The guide base 35 is disposed in the cavity formed by the eight side plates 321 of the electric cylinder mounting base 32. Eight electric cylinder press-fitting units are sequentially mounted on the eight side plates 321. The electric cylinder press-fitting unit includes an electric cylinder 31, a connecting head 33, a guide block 34, and a crimping tool 36. The output end of each electric cylinder 31 is connected to the guide block 34 through the connecting head 33. The guide block 34 passes through the guide hole of the guide base 35 and is in sliding and guiding fit with the guide hole. A crimping tool 36 is detachably mounted at the front end of the guide block 34. An arc-shaped press-fitting surface 3611 is formed on the press-fitting portion 361 of the crimping tool 36. One end of the press-fitting portion 361 forms an upper protrusion 36111 and a lower notch 36112, and the other end forms an upper notch 36113 and a lower protrusion 36114. When each crimping tool 36 moves inward under the action of the electric cylinder 31 until the arc-shaped press-fitting surfaces 3611 are joined, the upper protrusion 36111 of the adjacent press-fitting portion 361 is joined with the upper notch 36113, and the lower protrusion 36114 is joined with the lower notch 36112. Generally, the cross-sections of the protrusions and notches are triangular, and the end surfaces where the protrusions and notches are joined are inclined. The settings of the protrusions and notches can ensure the cooperation and position determination of each crimping tool 36.

[0072] Positioning and assembling of the workpiece: The bladder and the housing of the air spring are sleeved from the outside to the inside and then inserted into the annular groove between the upper sleeve 121 and the outer positioning box 11. The bladder fits against the inner wall of the outer positioning box 11, and the housing or the flange part of the housing fits into the arc-shaped positioning groove of the upper sleeve. The clamp of the air spring is sleeved outside the bladder and supported on the positioning concave stop 111 of the outer positioning box 11 (flanges are provided at both ends of the clamp, and a cover can be threadedly connected to the upper end of the outer positioning box 11. The annular top plate of the cover cooperates with the bottom surface of the positioning concave stop 111 to press-fit the flange of the clamp to prevent the clamp from coming off).

[0073] Transfer of the workpiece: The feeding mechanism 2 transfers the workpiece positioning mechanism 1 together with the assembled clamp, bladder, and housing to the bottom of the press-fitting mechanism 3, and then moves upward until the clamp is flush with the press-fitting portion 361 of the crimping tool 36.

[0074] Press-fitting of the workpiece: The electric cylinders of the eight electric cylinder press-fitting units synchronously drive each crimping tool 36 to move inward, pressing and fixing the clamp, bladder, and housing together, that is, pressing and fixing the bladder to the housing through the clamp.

[0075] In this embodiment, front and rear slots 343 and 341 are formed at the front and rear ends of the guiding block 34. A first limiting step 344 is formed at the bottom of the front slot 343. The crimping tool 36 includes a press-fitting portion 361 and an inverted L-shaped connecting portion 362. The horizontal portion of the inverted L-shaped connecting portion 362 is inserted into the front slot 343 and abuts against the horizontal end face of the first limiting step 344, and is fixed by bolts. Its vertical portion abuts against the vertical face of the first limiting step 344 and its lower end is connected to the press-fitting portion 361. Limiting convex stops 342 are formed by the inward extension of the two side walls of the rear slot 341. A groove 331 is formed between the head of the connecting head 33 and the main body. The head of the connecting head 33 is inserted into the rear slot 341 and its groove 331 is in limiting cooperation with the limiting convex stops 342. The setting of this structure, on the one hand, facilitates customers to replace the crimping tool 36 to adapt to the corresponding press-fitting of air springs of different sizes and models, improving the practicability of the device; on the other hand, the connecting head 33 at the output end of the electric cylinder is fitted and connected with the rear slot 341 of the guiding block 34, that is, it is not bolted. By reducing the matching precision between the connecting head 33 and the guiding block 34, the matching precision between the guiding block 34 and the guiding seat 35 is ensured, improving the reliability of the press-fitting.

[0076] In this embodiment, enclosures 4 are respectively arranged on the left and right sides and the front side of the device. An inspection platform 5 with a slope is arranged inside the enclosures 4 of the device.

[0077] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An eight-axis pressing device for an air spring clamp electronic servo press machine, comprising a workpiece positioning mechanism, a feeding mechanism and a press mechanism, wherein the workpiece positioning mechanism is installed at the output end of the feeding mechanism, and the feeding mechanism transfers the workpiece positioning mechanism to the press mechanism, characterized in that: The press-fitting mechanism comprises an electric cylinder mounting seat, a guide seat and an electric cylinder press-fitting unit, wherein the guide seat is arranged inside the electric cylinder mounting seat, and a plurality of electric cylinder press-fitting units are distributed on the electric cylinder mounting seat in a circumferential shape, wherein the electric cylinder press-fitting unit comprises an electric cylinder, a connector, a guide block and a crimping tool, wherein the output end of each electric cylinder is connected to the guide block through the connector, wherein the guide block passes through the guide hole of the guide seat and cooperates with the guide hole in a sliding guide, wherein the front end of the guide block is detachably mounted with a crimping tool, and the crimping part of the crimping tool is formed with an arc-shaped press-fitting surface; One end of the press-fitting part is formed with an upper protrusion and a lower notch, and the other end is formed with an upper notch and a lower protrusion. When the arc-shaped press-fitting surfaces of each pressing tool are connected, the upper protrusions of adjacent press-fitting parts are spliced ​​with the upper notch, and the lower protrusions are spliced ​​with the lower notch.

2. An eight-axis pressing device for an electronic servo press machine for an air spring clamp as claimed in claim 1, characterized in that: The electric cylinder pressing units are provided with eight.

3. The eight-axis pressing device of the air spring clamp electronic servo press machine according to claim 1, characterized in that: The workpiece positioning mechanism includes an inner positioning sleeve and an outer positioning box, the inner positioning sleeve includes an upper sleeve and a lower positioning shaft that are coaxially connected, the upper sleeve is placed in the outer positioning box and the bottom walls of the two are fitted and fixed, an annular groove body is formed between the upper sleeve and the side wall of the outer positioning box, the side wall of the upper sleeve is provided with a plurality of grooves extending from top to bottom to form a support arm, the outer side of the support arm is formed with a horizontally arranged arc-shaped positioning groove, the lower positioning shaft penetrates downwardly through the outer positioning box, and a positioning recessed stop is formed at the upper end of the outer positioning box.

4. An eight-axis pressing device for an electronic servo press machine for an air spring clamp as described in claim 1, 2 or 3, characterized in that: The feeding mechanism comprises a chuck, a vertical feeding unit and a horizontal feeding unit. The chuck is installed at the output end of the vertical feeding unit, and the vertical feeding unit is installed at the output end of the horizontal conveying unit.

5. The eight-axis pressing device of the air spring clamp electronic servo press machine according to claim 4, characterized in that: The front and rear ends of the guide block are provided with a front end slot and a rear end slot, a first limiting step is formed at the bottom of the front end slot, the crimping tool includes a pressing portion and an inverted L-shaped connecting portion, the lateral portion of the inverted L-shaped connecting portion is embedded in the front end slot and is fitted and fixed with the horizontal end surface of the first limiting step, its vertical portion is fitted and fixed with the vertical surface of the first limiting step and its lower end is connected to the pressing portion, the two side walls of the rear end slot extend inwardly to form a limiting convex stop, a groove is formed between the head of the connector and the main body, the head of the connector is embedded in the rear end slot and its groove is limitedly matched with the limiting convex stop.

6. An eight-axis pressing device for an electronic servo press machine for an air spring clamp as claimed in claim 5, characterized in that: A second limiting step is provided on the upper part of the clamping claw of the chuck.

7. The eight-axis pressing device of the air spring clamp electronic servo press machine according to claim 1, characterized in that: The left and right sides and the front side of the device are respectively provided with enclosures.

8. An eight-axis pressing device for an electronic servo press machine for an air spring clamp as claimed in claim 7, characterized in that: The device is provided with a maintenance platform located inside the enclosure, and the maintenance platform has a slope.

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