Swing arm assembly milling device

Abstract

This invention discloses a milling device for a swing arm assembly, comprising a clamping assembly, a clamping device, a sleeve positioning seat, an arc-shaped positioning block assembly, and a rectangular or irregularly shaped positioning block assembly, all mounted on a positioning base. The clamping device and clamping assembly are located at opposite ends of the positioning base, with the longitudinal centerline of the clamping device and the transverse centerline of the clamping assembly aligned on the same straight line. A sleeve positioning seat is located on one side of the clamping device. The arc-shaped positioning block assembly is located within the clamping assembly, and the rectangular or irregularly shaped positioning block assembly is positioned between the clamping device and the clamping assembly, parallel and adjacent to the arc-shaped positioning block assembly. This invention solves the problem of cumbersome positioning and alignment during the machining of key parts of the swing arm assembly, improving the machining efficiency, quality, and accuracy of the swing arm assembly. Furthermore, the interchangeability and mobility of the arc-shaped positioning block, the rectangular positioning block assembly, the irregularly shaped positioning block assembly, and the clamping device give the device a certain degree of versatility.

Description

Technical Field

[0001] The invention relates to a swing arm assembly machining auxiliary positioning device, in particular to a swing arm assembly milling device. Background Art

[0002] The swing arm assembly is a component of the flatbed transport vehicle drive axle. The swing arm assembly is used in conjunction with the rotating frame assembly and suspension cylinder on the drive axle to control the extension and retraction and steering of the drive axle, thereby realizing the lifting and lowering of the flatbed transport vehicle platform and the steering of the flatbed transport vehicle. Its function is equivalent to the suspension device and steering device.

[0003] like Figures 1 to 3 FIG. 1 shows a structural diagram of one type of swing arm assembly, which mainly includes a limit block 11, a sleeve 12, an inner hole 13, and a pin assembly 14. When the swing arm assembly is machined on a CNC horizontal boring and milling machine, the key dimensions of the swing arm assembly that need to be machined include: (1) the inclined surface of the limit block 11, which controls the up and down swing angles of the drive axle tire; (2) the distance dimension A, which is used to control the vertical height difference between the center line of the pin assembly and the hinge point (the hinge point between the rotating frame and the swing arm) when the suspension cylinder is retracted to the shortest, and is used to control the flatbed transport vehicle platform. the lowest position; (3) distance dimensions B1 and B2, which are used to control the horizontal distance between the hinge point and the suspension cylinder and the horizontal distance between the suspension cylinder and the wheel when the suspension cylinder is retracted to the shortest position to avoid interference; (4) I view inner hole diameter D1, which must meet the requirements of matching with the head of the suspension cylinder; (5) EE view sleeve inner diameter D2 and inner circle verticality, which control the hinge connection between the rotating frame assembly, the cylinder pin and the inner circle; (6) EE view sleeve length H and end face symmetry to ensure uniform spacing between the tire and the swing arm.

[0004] The swing arm assembly milling device of the prior art requires repeated measurements during processing, takes a long time to align, has poor processing accuracy, and has low production and processing efficiency. Summary of the invention

[0005] The invention provides a swing arm assembly milling device, which effectively solves the problems of the existing swing arm assembly milling device requiring repeated measurements during processing, long alignment time, poor processing accuracy and low production and processing efficiency.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A swing arm assembly milling device comprises a positioning base, a clamping assembly mounted on the positioning base, a clamping device, a sleeve positioning seat, an arc positioning block assembly, and a rectangular or special-shaped positioning block assembly;

[0008] The clamping device and the clamping assembly are respectively arranged at the two ends of the positioning base, and the longitudinal center line of the clamping device and the transverse center line of the clamping assembly are located on the same straight line; a sleeve positioning seat is provided on one side of the clamping device; the arc positioning block assembly is located in the clamping assembly, and the rectangular or special-shaped positioning block assembly is arranged between the clamping device and the clamping assembly, and is parallel and adjacent to the arc positioning block assembly.

[0009] As a preferred embodiment of the above scheme, the positioning base is provided with a reference surface, and the positioning base includes a base plate, and two positioning blocks are vertically and parallelly arranged at one end of the base plate, namely positioning block I and positioning block II, and the upper end surface of the positioning block is an arc-shaped surface. A transition plate is connected between the two positioning blocks, and a plurality of installation positioning holes are preset on the base plate.

[0010] As a preferred embodiment of the above scheme, a connecting plate is provided on the side of the positioning base, rib plates are provided on both sides of the connecting plate, and a U-shaped notch is opened on the connecting plate.

[0011] As a preferred embodiment of the above scheme, the positioning block II is located inside the positioning block I, and a side of the positioning block II away from the positioning block I is arranged in a stepped shape, and the step surface is a horizontal surface.

[0012] As a preferred embodiment of the above scheme, the rectangular or special-shaped positioning block assembly is fixedly arranged on the stepped surface of the positioning block II, wherein the upper end surface of the special-shaped positioning block assembly is provided with an arc surface.

[0013] As a preferred embodiment of the above scheme, the arc positioning block assembly includes an arc positioning block I and an arc positioning block II, which are respectively arranged on the arc surfaces of positioning block I and positioning block II. The inner diameter of arc positioning block II is larger than the inner diameter of arc positioning block I. Both are provided with positioning ribs, and the positioning ribs are provided with fixing holes.

[0014] As a preferred embodiment of the above scheme, the clamping assembly includes two groups of supports, which are respectively arranged at the left and right ends of positioning block I and positioning block II, and fixed to the bottom plate of the positioning base through preset installation positioning holes. The upper end of one group of supports is hinged with an arc pressure plate, and the upper end of the other group of supports is connected with a movable bolt through a pin shaft and a cotter pin. The movable bolt is sleeved with a first nut for locking the arc pressure plate.

[0015] As a preferred embodiment of the above scheme, the clamping device includes a base, a first screw, a first pressure plate, and a nut with a cover. The base is fixed to the positioning base by bolts, and the first pressure plate is fixed to the base by a first screw and a nut with a cover. A waist-shaped hole is provided on the first pressure plate.

[0016] As a preferred embodiment of the above scheme, the sleeve positioning seat includes a positioning column, a second screw, a second nut, and a second pressure plate. The second pressure plate is concentrically or eccentrically fixed to the positioning column through the second screw and the second nut, and the positioning column is fixed to the positioning base.

[0017] Due to the above structure, the beneficial effects of the present invention are:

[0018] The problem of cumbersome positioning and alignment when machining key parts of the swing arm assembly is solved, and the machining efficiency, quality and precision of the swing arm assembly are improved. In addition, due to the interchangeability and mobility of the arc positioning block, arc positioning block, rectangular positioning block assembly, special-shaped positioning block assembly and clamping device, the device has a certain degree of versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a structural schematic diagram of the swing arm assembly;

[0021] Figure 2 for Figure 1 A local enlarged view of location I in FIG.

[0022] Figure 3 for Figure 1 EE direction profile in;

[0023] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the positioning base of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the clamping assembly of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the pressing device of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the sleeve positioning seat of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the arc positioning block assembly of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the special-shaped positioning block of the present invention;

[0030] Fig.11 , Fig.12 The present invention is used to process and position the swing assembly. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] like Figures 4 to 12 As shown, this embodiment provides a swing arm assembly milling device, including a positioning base 2, a clamping assembly 3 installed on the positioning base 2, a clamping device 4, a sleeve positioning seat 5, an arc positioning block assembly 6, and a rectangular or special-shaped positioning block assembly 7;

[0033] The clamping device 4 and the clamping assembly 3 are respectively arranged at both ends of the positioning base 2, and the longitudinal center line of the clamping device 4 and the transverse center line of the clamping assembly 3 are located on the same straight line; a sleeve positioning seat 5 is provided on one side of the clamping device 4; the arc positioning block assembly 6 is located in the clamping assembly 3, and the rectangular or special-shaped positioning block assembly 7 is arranged between the clamping device 4 and the clamping assembly 3, and is parallel to and adjacent to the arc positioning block assembly 6.

[0034] in:

[0035] The positioning base 2 is provided with a reference surface, and the positioning base 2 includes a bottom plate 21, and two positioning blocks are arranged vertically and parallel on one end of the bottom plate 21, namely positioning block I 22 and positioning block II 23, and the upper end surface of the positioning block is an arc surface. A transition plate 24 is connected between the two positioning blocks, and a plurality of installation positioning holes 25 are preset on the bottom plate 21.

[0036] In this embodiment, a connecting plate 26 is disposed on the side of the positioning base 2 , rib plates 27 are disposed on both sides of the connecting plate 26 , and a U-shaped notch is formed on the connecting plate 26 .

[0037] The positioning block II 23 is located inside the positioning block I 22 , and a side of the positioning block II 23 away from the positioning block I 22 is arranged in a stepped shape, and the stepped surface is a horizontal surface.

[0038] The rectangular or special-shaped positioning block assembly 7 is fixedly mounted on the stepped surface of the positioning block II 23 , wherein the upper end surface of the special-shaped positioning block assembly is provided with an arc surface 71 .

[0039] The arc positioning block assembly 6 includes an arc positioning block I 61 and an arc positioning block II 62, which are respectively arranged on the arc surfaces of the positioning block I 22 and the positioning block II 23. The inner diameter of the arc positioning block II 62 is larger than the inner diameter of the arc positioning block I 61. Both are provided with a positioning rib 63, and a fixing hole is provided on the positioning rib 63.

[0040] The clamping assembly 3 includes two groups of supports 31, which are respectively arranged at the left and right ends of the positioning block I 22 and the positioning block II 23, and are fixed on the bottom plate 21 of the positioning base 2 through preset installation positioning holes 25. The upper end of one group of supports 31 is hinged with an arc pressure plate 32 through a pin shaft 34, and the upper end of the other group of supports 31 is connected with a live bolt 33 through a pin shaft 34 and a cotter pin 35. The live bolt 33 is sleeved with a first nut for locking the arc pressure plate 32.

[0041] The clamping device 4 includes a base 41, a first screw rod 42, a first pressure plate 43, and a nut with a cover 44. The base is fixed to the positioning base 2 by bolts, and the first pressure plate 43 is fixed to the base by the first screw rod 42 and the nut with a cover 44. A waist-shaped hole is opened on the first pressure plate 43.

[0042] The sleeve positioning seat 5 includes a positioning column 51, a second screw rod 52, a second nut, and a second pressure plate 53. The second pressure plate 53 is fixed on the positioning column 51 concentrically or eccentrically through the second screw rod 52 and the second nut. The positioning column 51 is fixed on the positioning base 2.

[0043] When using, follow the steps below to assemble:

[0044] Step ①, assemble the arc-shaped pressing plate 32, the support 31, the movable bolt 33, and the pin 34 of the pressing assembly 3, and load the pressing assembly 3 on the positioning base 2 to press and position the swing arm pin assembly 14;

[0045] Step ②, assembling the base 41 and the first screw 42 of the pressing device 4, and loading the base 41 on the positioning base 2, so as to press and position the limit block 11 of the swing arm;

[0046] Step ③, the arc positioning block I 61 and the arc positioning block II 62 are mounted on the arc surfaces of the positioning block I 22 and the positioning block II 23 of the positioning base 2, and used in conjunction with the clamping assembly 3;

[0047] Step ④, load the rectangular positioning block assembly or the special-shaped positioning block assembly on the stepped surface of the positioning block II 23 of the positioning base 2 (the two cannot be loaded at the same time, and can be replaced and installed according to the specific state) for positioning during the processing of the inner hole 13 of the swing arm;

[0048] Step ⑤, assemble the positioning column 51, the second screw 52, ​​the second nut, and the second pressing plate 53 of the sleeve positioning seat 5, and load the positioning column 51 on the positioning base 2 to press and position the sleeve 12 of the swing arm.

[0049] Step ⑥, loading the swing arm assembly onto the device;

[0050] Step ⑦, locate the reference surface of the positioning base 2 to complete the positioning and clamping of the swing arm assembly.

[0051] The swing arm assembly milling device of this embodiment solves the problem of cumbersome positioning and alignment when machining key parts of the swing arm assembly, and improves the machining efficiency, quality and precision of the swing arm assembly. Due to the interchangeability and mobility of the arc positioning block I, arc positioning block II, rectangular positioning block assembly, special-shaped positioning block assembly and clamping device, the device has a certain degree of versatility.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A swing arm assembly milling device, characterized in that: It includes a positioning base, a clamping assembly installed on the positioning base, a clamping device, a sleeve positioning seat, an arc positioning block assembly, and a rectangular or special-shaped positioning block assembly; The clamping device and the clamping assembly are respectively arranged at the two ends of the positioning base, and the longitudinal center line of the clamping device and the transverse center line of the clamping assembly are located on the same straight line; a sleeve positioning seat is provided on one side of the clamping device; the circular arc positioning block assembly is located in the clamping assembly, and the rectangular or special-shaped positioning block assembly is arranged between the clamping device and the clamping assembly, and is parallel and adjacent to the circular arc positioning block assembly; The positioning base is provided with a reference surface, and the positioning base includes a bottom plate, and two positioning blocks are arranged vertically and parallelly at one end of the bottom plate, namely positioning block I and positioning block II, and the upper end surface of the positioning block is an arc surface, and a transition plate is connected between the two positioning blocks, and a plurality of installation positioning holes are also preset on the bottom plate; The positioning block II is located inside the positioning block I, and the side of the positioning block II away from the positioning block I is arranged in a stepped shape, and the stepped surface is a horizontal surface; The rectangular or special-shaped positioning block assembly is fixedly mounted on the stepped surface of the positioning block II, wherein the upper end surface of the special-shaped positioning block assembly is provided with an arc surface; The arc positioning block assembly includes an arc positioning block I and an arc positioning block II, which are respectively arranged on the arc surfaces of the positioning block I and the positioning block II. The inner diameter of the arc positioning block II is larger than the inner diameter of the arc positioning block I. Both are provided with positioning ribs, and the positioning ribs are provided with fixing holes. The clamping assembly includes two groups of supports, which are respectively arranged at the two ends of positioning block I and positioning block II, and are fixed on the bottom plate of the positioning base through preset installation positioning holes. The upper end of one group of supports is hinged with an arc pressure plate, and the upper end of the other group of supports is connected with a movable bolt through a pin shaft and a cotter pin. The movable bolt is sleeved with a first nut for locking the arc pressure plate.

2. The swing arm assembly milling device according to claim 1, characterized in that: The side of the positioning base is provided with a connecting plate, both sides of the connecting plate are provided with rib plates, and the connecting plate is provided with a U-shaped notch.

3. The swing arm assembly milling device according to claim 1, characterized in that: The clamping device includes a base, a first screw rod, a first pressing plate, and a nut with a cover. The base is fixed to the positioning base by bolts, and the first pressing plate is fixed to the base by a first screw rod and a nut with a cover. A waist-shaped hole is opened on the first pressing plate.

4. The swing arm assembly milling device according to claim 1, characterized in that: The sleeve positioning seat comprises a positioning column, a second screw rod, a second nut, and a second pressing plate. The second pressing plate is fixed on the positioning column concentrically or eccentrically through the second screw rod and the second nut. The positioning column is fixed on the positioning base.

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