Machining and positioning tool for truck mandrel taper hole

Abstract

The utility model discloses a processing and positioning tool for a taper hole of a truck mandrel, which comprises a mould base, a first support and a second support which are fixed at the top of the mould base through a first fastener and a second fastener, and a jacking device arranged at the top of the mould base, the first support is arranged below a first axial surface, and the second support is arranged below a second axial surface. The second bracket is arranged below the second axial surface; the jacking device is arranged below the workpiece mandrel; the device is simple in structure and convenient to disassemble and assemble, the axial position of the conical shaft can be limited through the shaft end baffle, then the radial position of the mandrel can be limited by making the first shaft face abut against the first V-shaped face, making the second shaft face abut against the second V-shaped face and making the workpiece mandrel abut against the jacking device, and due to the fact that the axial position and the radial position of the mandrel are both limited, the machining precision is improved. In the using process, positioning is rapid and accurate, and due to the fact that the device supports the mandrel stably, the machining efficiency is improved, and the device is suitable for clamping and machining mandrels in batches.

Description

Technical Field

[0001] The utility model belongs to the technical field of truck processing tooling, and in particular relates to a processing and positioning tooling for a truck spindle taper hole. Background Art

[0002] A mining truck is a heavy-duty dump truck used in open-pit mines to complete rock and earth stripping and ore transportation tasks. In recent years, with the rapid economic development of my country's neighboring countries and African countries, the demand for mining trucks has continued to grow rapidly. At the same time, the country's standards and regulations for mining trucks have gradually improved, the outline of the standard system has gradually become clear, and the structure and content have gradually been integrated with international standards, reflecting strict requirements on safety, environmental protection, ergonomics, etc. Construction machinery manufacturers have entered the research and development of mining trucks, bringing the development of mining trucks into a new era.

[0003] There are certain angle requirements for the axis centerline and hole end face of the spindle on a 20-ton mining truck during processing. In the prior art, a traditional combined assembly jig is usually used to support clamping and adjustment during processing of the tapered hole end face. This clamping method has the defects of poor stability and low efficiency, and the supporting effect is very poor. In summary, there is an urgent need for a stable and efficient processing and positioning tool for the tapered hole of the truck spindle. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a machining and positioning tool for a tapered hole of a truck spindle, wherein the truck spindle comprises a tapered shaft and a workpiece spindle connected to each other, wherein the tapered shaft comprises a first axial surface and a second axial surface connected to each other by a tapered surface transition, wherein the outer diameter of the second axial surface is larger than the first axial surface, and the machining and positioning tool for the tapered hole of the truck spindle comprises a jig base, a first bracket and a second bracket fixed to the top of the jig base by a first fastener and a second fastener, and a jacking device arranged on the top of the jig base, wherein the first bracket is arranged below the first axial surface, the second bracket is arranged below the second axial surface, and the jacking device is arranged below the workpiece spindle, wherein:

[0005] The second bracket is parallel to the first bracket and is arranged between the first bracket and the jacking device, an axial end baffle is arranged on the top of the first bracket away from the second bracket, the first bracket and the second bracket are both perpendicular to the mold base, a first V-shaped surface extends from the top end face of the first bracket below the center, a square groove is provided at the bottom of the first V-shaped surface, a second V-shaped surface extends from the top end face of the second bracket below the center, the square groove is provided at the bottom of the second V-shaped surface, the first axial surface abuts against the first V-shaped surface, the second axial surface abuts against the second V-shaped surface, the outer periphery of the workpiece core shaft abuts against the top of the jacking device, a plurality of fixing holes are symmetrically arranged along the center line of the square groove on the top side of the first bracket away from the second bracket, the axial end baffle is fixed to the first bracket by the cooperation between the third fastener and the fixing hole, the end face of the first axial surface abuts against the side of the axial end baffle close to the second bracket, and the distance between the first axial surface and the second axial surface matches the distance between the first bracket and the second bracket.

[0006] Furthermore, in the above-mentioned tooling for machining and positioning the tapered hole of a truck spindle, a washer is sleeved on the first fastener, and a washer is sleeved on the third fastener.

[0007] As a specific implementation, in the above-mentioned machining and positioning tool for the tapered hole of the truck spindle, the first fastener and the third fastener are both fastening bolts.

[0008] As a specific implementation, in the above-mentioned machining and positioning tool for the tapered hole of the truck spindle, the second fastener is a cylindrical pin.

[0009] As a specific implementation, in the above-mentioned tooling for machining and positioning the tapered hole of a truck spindle, the jacking device is a mechanical jack.

[0010] The machining and positioning tooling for the taper hole of a truck spindle of the utility model has the following advantages and beneficial effects:

[0011] The device has a simple structure and is easy to assemble and disassemble. The axial position of the tapered shaft can be limited by the shaft end baffle, and the radial position of the spindle can be limited by making the first shaft surface abut against the first V-shaped surface, the second shaft surface abut against the second V-shaped surface, and the workpiece spindle abut against the lifting device. Since both the axial position and the radial position of the spindle are limited, the end face of the tapered hole of the spindle can be processed. During use, positioning is fast and accurate. Since the device firmly supports the spindle, the processing efficiency is improved, and the device is suitable for batch clamping processing of spindles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1 It is a structural schematic diagram of a tooling for machining and positioning a tapered hole of a truck spindle according to the utility model;

[0014] Figure 2 It is a top view of the tooling for machining and positioning the tapered hole of a truck spindle of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the first bracket in the tooling for machining and positioning the tapered hole of a truck spindle of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the structure of the second bracket in the tooling for machining and positioning the tapered hole of a truck spindle.

[0017] Description of reference numerals:

[0018] 1- jig base, 2- first fastener, 3- second fastener, 4- first bracket, 41- first V-shaped surface, 42- fixing hole, 5- second bracket, 51- second V-shaped surface, 6- lifting device, 7- shaft end baffle, 71- third fastener, 100- tapered shaft, 101- first shaft surface, 102- tapered surface, 103- second shaft surface, 200- workpiece core shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4As shown, the utility model discloses a machining positioning tool for a truck spindle tapered hole, the truck spindle comprises a tapered shaft 100 and a workpiece spindle 200 connected to each other, the tapered shaft 100 comprises a first axial surface 101 and a second axial surface 103 transitionally connected to each other through a tapered surface 102, the outer diameter of the second axial surface 103 is larger than the first axial surface 101, the second axial surface 103 is arranged between the first axial surface 101 and the workpiece spindle 200, the machining positioning tool for the truck spindle tapered hole comprises a jig base 1, a first fastener 2 and a second fastener 3 fixed to the top of the jig base 1 A bracket 4 and a second bracket 5, and a lifting device 6 arranged on the top of the mold base 1, through which the workpiece core shaft 200 can be pushed to move in the vertical direction, the first bracket 4 is arranged below the first axial surface 101, the second bracket 5 is arranged below the second axial surface 103, the lifting device 6 is arranged below the workpiece core shaft 200, the height of the first bracket 4 is equal to the height of the second bracket 5, and both are higher than the height of the lifting device 6, wherein the second bracket 5 is parallel to the first bracket 4 and is arranged between the first bracket 4 and the lifting device 6, and the top of the first bracket 4 is away from the second bracket 5 A shaft end baffle 7 is provided on one side, and the axial position of the tapered shaft 100 can be limited by the shaft end baffle 7. The first bracket 4 and the second bracket 5 are both perpendicular to the mold base 1. The top end surface of the first bracket 4 extends a first V-shaped surface 41 below the center, and a square groove is provided at the bottom of the first V-shaped surface 41. The top end surface of the second bracket 5 extends a second V-shaped surface 51 below the center, and a square groove is provided at the bottom of the second V-shaped surface 51. The square groove at the bottom of the first V-shaped surface 41 is higher than the square groove at the bottom of the second V-shaped surface 51. The first shaft surface 101 abuts against the first V-shaped surface 41, and the second shaft surface 103 abuts against the second V-shaped surface 41. V-shaped surface 51, at this time, the center lines of the first axial surface 101 and the second axial surface 103 coincide with each other, the outer periphery of the workpiece core shaft 200 abuts against the top of the jacking device 6, and a plurality of fixing holes 42 are symmetrically arranged along the center line of the square groove on the top of the first bracket 4 away from the second bracket 5. The shaft end baffle 7 is fixed to the first bracket 4 by the cooperation between the third fastener 71 and the fixing hole 42, and the end face of the first axial surface 101 abuts against the side of the shaft end baffle 7 close to the second bracket 5. The distance between the first axial surface 101 and the second axial surface 103 matches the distance between the first bracket 4 and the second bracket 5.

[0021] Furthermore, in the machining and positioning tooling for the tapered hole of the truck spindle of the utility model, a washer is sleeved on the first fastener 2, and a washer is sleeved on the third fastener 71. In this arrangement, the washer buffers the fastening pressure of the first fastener 2 and the third fastener 71, and the first bracket 4, the second bracket 5, and the shaft end baffle 7 can be fixed more stably.

[0022] As a specific implementation, in the processing and positioning tooling for the tapered hole of the truck spindle of the utility model, the first fastener 2 and the third fastener 71 are both fastening bolts. Of course, the first fastener 2 and the third fastener 71 can also be other fasteners such as screws and pins, as long as the fastening effect is met, and there is no limitation here.

[0023] As a specific implementation, in the machining and positioning tooling for the tapered hole of the truck spindle of the utility model, the second fastener 3 is a cylindrical pin. The second fastener 3 can also be other fasteners such as screws and bolts, as long as the fastening effect is met, and no limitation is made here.

[0024] As a specific implementation, in the machining and positioning tooling for truck spindle tapered holes of the utility model, the jacking device 6 is a mechanical jack. Of course, the specific structure of the jacking device 6 needs to be set according to the actual use conditions such as the shape and size of the workpiece spindle 200 during use.

[0025] The working principle of the tooling for machining and positioning the tapered hole of a truck spindle of the utility model is as follows: first, the shaft end baffle 7 is fixed to one side of the first bracket 4 by means of a washer and a third fastener 71, and then the first bracket 4 and the second bracket 5 are fixed to a specified position above the jig base 1 by means of the first fastener 2, the second fastener 3, and the washer, and then the jacking device 6 is placed at a specified position above the jig base 1, and the spindle is placed on the device so that the first axial surface 101 abuts against the first V-shaped surface 41, the second axial surface 103 abuts against the second V-shaped surface 51, and the workpiece spindle 200 abuts against the jacking device 6, and finally, the height of the workpiece spindle 200 in the vertical direction is adjusted by adjusting the jacking device 6 so that it reaches the specified height, thereby completing the clamping of the truck spindle.

[0026] In summary, compared with the prior art, the machining and positioning tooling for truck spindle taper holes of the utility model has the following advantages and beneficial effects:

[0027] The device has a simple structure and is easy to assemble and disassemble. The axial position of the tapered shaft 100 can be limited by the shaft end baffle 7, and the first shaft surface 101 is abutted against the first V-shaped surface 41, the second shaft surface 103 is abutted against the second V-shaped surface 51, and the workpiece core shaft 200 is abutted against the lifting device 6. In this way, the radial position of the core shaft can be limited. Since the axial position and radial position of the core shaft are both limited, the end face of the tapered hole of the core shaft can be processed. During use, positioning is fast and accurate. In addition, since the device firmly supports the core shaft, the processing efficiency is improved, and it is suitable for batch clamping processing of the core shaft.

[0028] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions 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 such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0029] Finally, it should be noted that 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 embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool for machining and positioning a tapered hole of a truck spindle, wherein the truck spindle comprises a tapered shaft and a workpiece spindle connected to each other, wherein the tapered shaft comprises a first axial surface and a second axial surface connected to each other by a tapered surface transition, wherein the outer diameter of the second axial surface is greater than that of the first axial surface, and wherein: The processing and positioning tool for the tapered hole of a truck spindle comprises a jig base, a first bracket and a second bracket fixed to the top of the jig base by a first fastener and a second fastener, and a jacking device arranged on the top of the jig base, wherein the first bracket is arranged below the first axial surface, the second bracket is arranged below the second axial surface, and the jacking device is arranged below the workpiece spindle, wherein: The second bracket is parallel to the first bracket and is arranged between the first bracket and the jacking device, an axial end baffle is arranged on the top of the first bracket away from the second bracket, the first bracket and the second bracket are both perpendicular to the mold base, a first V-shaped surface extends from the top end face of the first bracket below the center, a square groove is provided at the bottom of the first V-shaped surface, a second V-shaped surface extends from the top end face of the second bracket below the center, the square groove is provided at the bottom of the second V-shaped surface, the first axial surface abuts against the first V-shaped surface, the second axial surface abuts against the second V-shaped surface, the outer periphery of the workpiece core shaft abuts against the top of the jacking device, a plurality of fixing holes are symmetrically arranged along the center line of the square groove on the top side of the first bracket away from the second bracket, the axial end baffle is fixed to the first bracket by the cooperation between the third fastener and the fixing hole, the end face of the first axial surface abuts against the side of the axial end baffle close to the second bracket, and the distance between the first axial surface and the second axial surface matches the distance between the first bracket and the second bracket.

2. The tooling for machining and positioning the tapered hole of a truck spindle according to claim 1, characterized in that: The first fastener is sleeved with a washer, and the third fastener is sleeved with a washer.

3. The tooling for machining and positioning the tapered hole of a truck spindle according to claim 1, characterized in that: The first fastening member and the third fastening member are both fastening bolts.

4. The tooling for machining and positioning the tapered hole of a truck spindle according to claim 1, characterized in that: The second fastener is a cylindrical pin.

5. The tooling for machining and positioning the tapered hole of a truck spindle according to claim 1, characterized in that: The lifting device is a mechanical jack.

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