Knuckle press-fitting mistake-proof pressing head

Abstract

The utility model relates to the technical field of automobile part production, and discloses a steering knuckle press-fitting mistake-proof pressing head which comprises a pressing head body, a connecting part used for being connected with a press-fitting machine is arranged at the upper end of the pressing head body, a press-fitting part is arranged at the lower end of the pressing head body, and a pressing head inner core is arranged on the press-fitting part corresponding to the inner diameter of a lining accessory. A mistake-proof structure is arranged on the pressing head inner core, the mistake-proof structure comprises a mistake-proof pin axially arranged on the outer diameter of the pressing head inner core, the mistake-proof pin is arranged corresponding to a mistake-proof groove formed in the inner diameter of a lining accessory, and the mistake-proof pin is in sliding fit with the mistake-proof groove. According to the utility model, by arranging the mistake-proof structure, different bushing accessories can only be preassembled on the corresponding pressure head inner cores, so that mistake-proof press fitting of the bushing accessories is realized, the press fitting quality of steering knuckle products is ensured, and potential quality hazards are eliminated from the source; due to the arrangement of the detection device, the press-fitting accuracy of the bushing accessory is further ensured, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to a steering knuckle press-fit error-proof pressing head. Background Art

[0002] The steering knuckle is an important component in the steering axle of an automobile. With the increasing number of automobile types on the market, the types and specifications of supporting steering knuckle products are also increasing. In the production process of automobile steering knuckles, bushing accessories need to be pressed and fitted. Bushing accessories of different specifications are pressed and fitted into the corresponding model of steering knuckle press-fitting holes through a press-fitting machine. Since the appearance and size of bushing accessories of different specifications are basically the same, it is difficult to tell by naked eyes whether the bushing accessories are compatible with the steering knuckle to be pressed. Traditional press-fitting machines lack corresponding error-proofing structures, and it is very easy to use the wrong bushing accessories during the press-fitting process, which poses a great quality risk. If the wrongly installed steering knuckle is sent to the user from the factory, it will cause the user to be unable to install the vehicle normally, causing quality complaints; in serious cases, if the user successfully installs the vehicle, the wrongly installed steering knuckle will bury quality risks and threaten driving safety.

[0003] Based on this, developing a steering knuckle press-fitting error-proof pressure head for application in actual production is an urgent problem to be solved. Utility Model Content

[0004] The utility model aims to provide a steering knuckle press-fitting anti-mistake pressing head in view of the above problems, so as to solve the problem that the bushing accessories are easily used incorrectly in the existing steering knuckle press-fitting process, resulting in quality risks of the steering knuckle product and affecting driving safety.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A steering knuckle press-fitting anti-error ram, comprising a ram body, wherein the upper end of the ram body is provided with a connecting portion for connecting to a press-fitting machine, the lower end of the ram body is provided with a press-fitting portion, the press-fitting portion is provided with a ram inner core corresponding to the inner diameter of a bushing accessory, an anti-error structure is provided on the ram inner core, the anti-error structure comprises an anti-error pin axially arranged on the outer diameter of the ram inner core, the anti-error pin is arranged corresponding to an anti-error groove opened on the inner diameter of the bushing accessory, and the anti-error pin is slidably matched with the anti-error groove.

[0007] Preferably, a tightening marble is provided on the inner core of the pressing head corresponding to the inner diameter of the bushing accessory, and the tightening marble can be pushed out of the outer diameter of the inner core of the pressing head for pre-installation and fixation of the bushing accessory. The tightening marble is a ball screw.

[0008] Preferably, a detection device is provided on the pressing head body corresponding to the pre-installed bushing accessory, for detecting whether the bushing accessory is pre-installed in place, and the detection device is communicatively connected to the pressing machine.

[0009] Preferably, the detection device is a through-beam sensor, and the through-beam sensor is communicatively connected to the press.

[0010] Preferably, a detection bracket for fixing the detection device is connected to the pressure head body, and the detection device is fixedly connected to the detection bracket.

[0011] Preferably, the detection bracket is provided with an ear plate for fixing the wiring harness of the detection device.

[0012] Preferably, the outer diameter of the inner core of the press head is set to correspond to the inner diameter of the bushing accessory, and the inner core of the press head cooperates with the inner diameter shaft hole of the bushing accessory.

[0013] Preferably, the inner diameter matching clearance between the inner core of the pressure head and the bushing accessory is 0.02-0.05mm.

[0014] Preferably, the end of the inner core of the pressure head is provided with a rounded structure.

[0015] Preferably, the connecting portion is provided with a mounting pin hole for the fastening pin to pass through, so as to ensure a reliable connection between the pressing head body and the pressing machine.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides an anti-error structure by arranging anti-error pins of different shapes and matching anti-error grooves for different types of products, so that different bushing accessories can only be pre-installed on the corresponding pressure head inner core, thereby realizing the anti-error pressing of the bushing accessories, ensuring the pressing quality of the steering knuckle products, and eliminating quality risks; the setting of the tightening marbles facilitates the pre-installation and fixation of the bushing accessories, thereby improving the convenience of operation; the setting of the detection device further ensures the pressing accuracy of the bushing accessories, avoids malfunctions such as air compression of the pressing machine, and improves the safety of operation; the pressure head inner core cooperates with the inner diameter shaft hole of the bushing accessories, which facilitates the pre-installation of the bushing accessories and the pressure head inner core before pressing while ensuring the pressing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure: 1--pressing head body; 11--connecting part; 12--pressing part; 13--pressing head inner core; 14--anti-error pin; 15--tightening ball; 16--detection device; 17--detection bracket; 18--ear plate; 19--installation pin hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] like Figure 1-2 As shown, a steering knuckle press-fitting error-proofing press head includes a press head body 1, the upper end of the press head body 1 is provided with a connection portion 11 for connecting a press-fitting machine, the lower end of the press head body 1 is provided with a press-fitting portion 12, the press-fitting portion 12 is provided with a press head inner core 13 corresponding to the inner diameter of the bushing accessory, and an error-proofing structure is provided on the press head inner core 13 to prevent the incorrect press-fitting of the bushing accessory. Specifically, the error-proofing structure includes an error-proofing pin 14 axially arranged on the outer diameter of the press head inner core 13, the error-proofing pin 14 is arranged corresponding to the error-proofing groove opened on the inner diameter of the bushing accessory, and the error-proofing pin 14 is slidably matched with the error-proofing groove.

[0024] When in use, align the inner diameter of the bushing accessory with the inner core 13 of the ram and slide it upward. If the anti-error pin 14 on the inner core 13 of the ram can smoothly slide into the anti-error groove of the bushing accessory, so that the bushing accessory is pre-installed in place on the ram body 1, it means that the bushing accessory is not used incorrectly and the press-fitting operation can be performed. On the contrary, if the anti-error groove on the bushing accessory is not compatible with the anti-error pin 14 on the inner core 13 of the ram, the bushing accessory cannot be pre-installed in place smoothly, and the press-fitting machine refuses to perform the press-fitting action. This embodiment provides different types of products with anti-error pins 14 of different shapes and matching anti-error grooves, so that different bushing accessories can only be pre-installed on the corresponding inner core 13 of the ram, thereby achieving anti-error press-fitting of the bushing accessories, ensuring the press-fitting quality of the product, and eliminating quality risks.

[0025] Furthermore, a tightening marble 15 is provided on the inner diameter of the press head inner core 13 corresponding to the bushing accessory, and the tightening marble 15 can be pushed out of the outer diameter of the press head inner core 13, and is used for pre-installation and fixation of the bushing accessory. The tightening marble 15 can be a ball screw on the market, which is radially screwed in the press head inner core 13, and the ball of the ball screw leaks out of the outer diameter of the press head inner core 13. When in use, the inner diameter of the bushing accessory will squeeze the tightening marble 15, so that the tightening marble 15 will retract and tighten on the inner diameter of the bushing accessory, thereby achieving the clamping of the bushing accessory.

[0026] Furthermore, a detection device 16 is provided on the press head body 1 corresponding to the pre-installed bushing accessories. The detection device 16 is communicatively connected to the press machine and is used to detect whether the bushing accessories are pre-installed in place, which serves as a basis for whether the press machine performs the press-fitting action. The detection device 16 is preferably a through-beam sensor, and the through-beam sensor is communicatively connected to the press machine. When the bushing accessories are pre-installed in place, the light beam of the through-beam sensor is blocked, and the through-beam sensor is in an off-circuit state. At this time, the press machine will stand by to perform the press-fitting action. If the bushing accessories are not pre-installed in place, the through-beam sensor is in a through-circuit state, and the press machine refuses to perform the press-fitting action. The press-fitting accuracy of the bushing accessories is further ensured, and malfunctions such as air compression of the press machine are avoided, thereby improving the safety of the operation.

[0027] The pressure head body 1 is connected with a detection bracket 17 for fixing the detection device 16, and the detection device 16 is fixedly connected with the detection bracket 17. The detection bracket 17 is provided with an ear plate 18 for routing the detection device 16 and fixing the wiring harness, thereby improving the structural regularity of the pressure head body 1.

[0028] The outer diameter of the press head inner core 13 corresponds to the inner diameter of the bushing accessory, so that the press head inner core 13 can be used as a radial positioning reference for the bushing accessory, thereby improving the press-fitting accuracy of the bushing accessory. Preferably, the press head inner core 13 is matched with the inner diameter shaft hole of the bushing accessory. More preferably, the inner diameter matching clearance between the press head inner core 13 and the bushing accessory is 0.02-0.05mm, which facilitates the pre-installation of the bushing accessory and the press head inner core 13 before press-fitting while ensuring the press-fitting accuracy.

[0029] Furthermore, the end of the press head inner core 13 is provided with a rounded structure, which, on the one hand, provides a guiding function during the pre-installation of the bushing accessories, so that the press head inner core 13 can smoothly penetrate into the inner diameter of the bushing accessories. On the other hand, the rounded end of the press head inner core 13 improves the structural strength, overcomes the defect that the end of the press head inner core 13 is easy to be bumped and deformed, which affects the smooth pre-installation of the bushing accessories, and ensures the working efficiency.

[0030] Preferably, the connecting portion 11 is provided with a mounting pin hole 19 for the fastening pin to pass through, so as to ensure a reliable connection between the pressing head body 1 and the pressing machine.

[0031] The above disclosure is only a specific embodiment of the present patent, but the present patent is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, the deformation made should be deemed to belong to the protection of the present invention.

Claims

1. A steering knuckle press-fit error-proofing press head, characterized in that: The invention comprises a pressing head body (1), wherein the upper end of the pressing head body (1) is provided with a connection portion (11) for connecting to a pressing machine, and the lower end of the pressing head body (1) is provided with a pressing portion (12). The pressing portion (12) is provided with a pressing head inner core (13) corresponding to the inner diameter of a bushing accessory, and an anti-error structure is provided on the pressing head inner core (13). The anti-error structure comprises an anti-error pin (14) axially provided on the outer diameter of the pressing head inner core (13), and the anti-error pin (14) is provided corresponding to an anti-error groove provided on the inner diameter of the bushing accessory, and the anti-error pin (14) is slidably matched with the anti-error groove.

2. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: A tightening marble (15) is provided on the inner core (13) of the press head corresponding to the inner diameter of the bushing accessory. The tightening marble (15) can be pushed out of the outer diameter of the inner core (13) of the press head and is used for pre-installation and fixation of the bushing accessory. The tightening marble (15) is a ball screw.

3. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: The press head body (1) is provided with a detection device (16) corresponding to the pre-installed bushing accessory, which is used to detect whether the bushing accessory is pre-installed in place, and the detection device (16) is communicatively connected to the press machine.

4. The steering knuckle press-fit error-proofing press head according to claim 3, characterized in that: The detection device (16) is a through-beam sensor, and the through-beam sensor is communicatively connected to the press machine.

5. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: The pressure head body (1) is connected to a detection bracket (17) for fixing the detection device (16), and the detection device (16) is fixedly connected to the detection bracket (17).

6. The steering knuckle press-fit error-proofing press head according to claim 5, characterized in that: The detection bracket (17) is provided with an ear plate (18) for fixing the wiring harness of the detection device (16).

7. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: The outer diameter of the pressure head inner core (13) is set to correspond to the inner diameter of the bushing accessory, and the pressure head inner core (13) cooperates with the inner diameter shaft hole of the bushing accessory.

8. The steering knuckle press-fit error-proofing press head according to claim 7, characterized in that: The inner diameter matching clearance between the pressure head inner core (13) and the bushing accessory is 0.02-0.05 mm.

9. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: The end of the pressure head inner core (13) is provided with a rounded corner structure.

10. The steering knuckle press-fit error-proofing press head according to claim 1, characterized in that: The connecting portion (11) is provided with a mounting pin hole (19) for the fastening pin shaft to pass through, and is used for reliable connection between the pressing head body (1) and the pressing machine.

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