Positioning device for machining of air chamber rod support casting

Abstract

The utility model discloses a positioning device for machining an air chamber rod support casting, which comprises a bottom plate, two ends of the bottom plate are respectively provided with a first positioning piece which is used for supporting and positioning the air chamber rod support casting which is inversely arranged on the bottom plate, and one side of the bottom plate is provided with a second positioning piece which is used for laterally positioning the air chamber rod support casting. The first positioning pieces are arranged at the two ends of the bottom plate respectively to support and position the air chamber rod support casting which is inversely arranged on the bottom plate, the second positioning piece is arranged on one side of the bottom plate to laterally position the air chamber rod support casting, and therefore the air chamber rod support casting can be effectively positioned. And the machining efficiency and the machining precision are ensured.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology for machining gas chamber rod support castings, specifically a positioning device for machining gas chamber rod support castings. Background Technology

[0002] The air chamber rod support is a key component of a pneumatic support system, primarily used to fix and support the pneumatic support rod (also known as a gas spring), ensuring its stable operation. The air chamber rod support is a metal part, usually cast, and has an irregular shape, such as... Figure 4 As shown, it mainly includes a base 41 and two vertical arms 42 integrally formed on the base 41 and arranged at an angle.

[0003] Currently, the cast gas chamber rod support parts require further machining, including milling the bottom surface of the base and milling and drilling the four (rounded) corners of the base. Machine tools are the most common machining equipment. For irregularly shaped gas chamber rod support castings, effective positioning on the machine tool is a key factor in ensuring improved machining efficiency and accuracy. Utility Model Content

[0004] The purpose of this invention is to overcome the defects and deficiencies of the existing technology and provide a positioning device for machining gas chamber rod support castings, so as to achieve effective positioning of gas chamber rod support castings and ensure machining efficiency and machining accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning device for machining a gas chamber rod support casting includes a base plate, characterized in that: first positioning members are respectively provided at both ends of the base plate for supporting and positioning the gas chamber rod support casting placed upside down on it, and a second positioning member is provided on one side of the base plate for laterally positioning the gas chamber rod support casting.

[0007] Furthermore, the first positioning element includes a C-shaped block, two of which are respectively fixedly connected to the two ends of the base plate, and the openings of the two C-shaped blocks are arranged opposite to each other, and the inner edge of the top of the C-shaped block is recessed to form a step.

[0008] Furthermore, the gas chamber rod support casting is inverted, with the upper surfaces of the four corners of the base of the gas chamber rod support casting respectively abutting against the transverse step surfaces of the steps at both ends, and the outer walls of the four corners of the base of the gas chamber rod support casting respectively abutting against the vertical step surfaces of the steps at both ends.

[0009] Furthermore, the bottom surface of the base of the gas chamber rod support casting is higher than the top surface of the C-shaped block.

[0010] Furthermore, the second positioning component includes a vertical plate and a positioning bolt. The vertical plate is fixedly connected to one side of the base plate. The upper end of the vertical plate is provided with a transverse screw hole that penetrates its inner and outer sides. The positioning bolt is screwed into the transverse screw hole from the outside to the inside and is pressed against one side of the gas chamber rod support casting.

[0011] Furthermore, the base plate is provided with two clearance windows, which are used to make way for the two vertical arms of the gas chamber rod support casting.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model achieves effective positioning of the gas chamber rod support casting by setting first positioning members at both ends of the base plate to support and position the inverted gas chamber rod support casting, and by setting a second positioning member on one side of the base plate to achieve lateral positioning of the gas chamber rod support casting, thereby ensuring processing efficiency and processing accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural diagram of the present invention when positioning the gas chamber rod support casting. Figure 1 .

[0016] Figure 3 This is a structural diagram of the present invention when positioning the gas chamber rod support casting. Figure 2 .

[0017] Figure 4 This is a schematic diagram of the structure of the gas chamber rod support casting of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figure 1-4 A positioning device for machining a gas chamber rod support casting includes a base plate 1, with first positioning members 2 at both ends of the base plate 1 for supporting and positioning the gas chamber rod support casting 4 placed upside down on it, and a second positioning member 3 on one side of the base plate 1 for laterally positioning the gas chamber rod support casting 4.

[0020] It should be noted that the base plate 1 of this utility model is fixedly connected to the worktable of the machine tool. In order to ensure the stability of the gas chamber rod support casting during the processing, a fixture group (not shown in the figure) should also be installed on the worktable of the machine tool.

[0021] In order not to affect the milling of the bottom surface of the base 41 and the drilling of the four corners (circular) of the base 41, the fixture set should have two sets. When milling the bottom surface of the base 41, one set of fixtures clamps the four corners of the base 41, and the other set of fixtures is not used. When milling and drilling the four corners (circular) of the base, the other set of fixtures clamps the two sides of the bottom surface of the base 41, and the other set of fixtures is not used.

[0022] In this utility model, the first positioning member 2 includes a chamfered block 21. The two chamfered blocks 21 are respectively fixedly connected to the two ends of the base plate 1, and the openings of the two chamfered blocks 21 are arranged opposite to each other. The inner edge of the top of the chamfered block 21 is recessed and forms a step 22.

[0023] In this invention, the gas chamber rod support casting 4 is inverted, and the upper surfaces of the four corners (circular) of the base 41 of the gas chamber rod support casting 4 respectively abut against the transverse step surfaces 221 of the steps 22 at both ends. The outer walls of the four corners of the base 41 of the gas chamber rod support casting 4 respectively abut against the vertical step surfaces 222 of the steps 22 at both ends, thereby supporting and positioning the inverted gas chamber rod support casting 4.

[0024] In this invention, the bottom surface of the base 41 of the gas chamber rod support casting 4 is higher than the top surface of the U-shaped block 21, which facilitates the clamping of the above-mentioned fixture assembly and will not affect normal milling and drilling operations.

[0025] In this utility model, the second positioning component 3 includes a vertical plate 31 and a positioning bolt 32. The vertical plate 31 is fixedly connected to one side of the base plate 1. The upper end of the vertical plate 31 is provided with a transverse screw hole that penetrates its inner and outer sides. The positioning bolt 32 is screwed into the transverse screw hole from the outside to the inside and is pressed against one side of the gas chamber rod support casting 4, thereby playing the role of lateral positioning of the gas chamber rod support casting 4.

[0026] In this utility model, two clearance windows 5 are provided on the base plate 1, so as to provide clearance space for the two vertical arms 42 of the gas chamber rod support casting 4.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] In use, the gas chamber rod bracket casting 4, which is waiting to be machined, is first inverted so that the upper surfaces of the four corners (circular) of its base 41 respectively abut against the horizontal step surfaces 221 of the steps 22 at both ends, and the outer walls of the four corners of its base 41 respectively abut against the vertical step surfaces 222 of the steps 22 at both ends, thereby supporting and positioning the gas chamber rod bracket casting 4 that is inverted on it.

[0029] Next, rotate the positioning bolt 32 to press it against one side of the air chamber rod support casting 4, thereby achieving lateral positioning of the air chamber rod support casting 4.

[0030] Then, use one set of clamps to clamp the four corners of the base 41, while the other set of clamps is not used.

[0031] Then, the milling cutter equipped on the machine tool is started to mill the bottom surface of the base 41.

[0032] After completion, use another set of clamps to clamp the two sides of the bottom surface of the base 41. The above set of clamps is not used.

[0033] Then, the milling and drilling tools equipped on the machine tool are started to mill and drill the four corners of the base 41 in turn.

[0034] After completion, release the clamp and rotate the positioning bolt 32 in the opposite direction to disengage it from the gas chamber rod support casting 4, and then remove the machined gas chamber rod support casting 4.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A positioning device for machining a gas chamber rod support casting, comprising a base plate, characterized in that: The base plate is provided with first positioning members at both ends for supporting and positioning the gas chamber rod support casting placed upside down on it, and a second positioning member is provided on one side of the base plate for laterally positioning the gas chamber rod support casting.

2. The positioning device for machining a gas chamber rod support casting according to claim 1, characterized in that: The first positioning element includes a C-shaped block, two of which are respectively fixedly connected to the two ends of the base plate, and the openings of the two C-shaped blocks are arranged opposite to each other. The inner edge of the top of the C-shaped block is recessed and forms a step.

3. The positioning device for machining a gas chamber rod support casting according to claim 2, characterized in that: The gas chamber rod support casting is inverted, with the upper surfaces of the four corners of the base of the gas chamber rod support casting respectively abutting against the transverse step surfaces of the steps at both ends, and the outer walls of the four corners of the base of the gas chamber rod support casting respectively abutting against the vertical step surfaces of the steps at both ends.

4. The positioning device for machining a gas chamber rod support casting according to claim 3, characterized in that: The bottom surface of the base of the gas chamber rod support casting is higher than the top surface of the C-shaped block.

5. A positioning device for machining a gas chamber rod support casting according to claim 1, characterized in that: The second positioning component includes a vertical plate and a positioning bolt. The vertical plate is fixedly connected to one side of the base plate. The upper end of the vertical plate is provided with a transverse screw hole that penetrates its inner and outer sides. The positioning bolt is screwed into the transverse screw hole from the outside to the inside and is pressed against one side of the gas chamber rod support casting.

6. The positioning device for machining a gas chamber rod support casting according to claim 1, characterized in that: The base plate is provided with two clearance windows, which are used to make way for the two vertical arms of the gas chamber rod support casting.

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