Positioning clamp for surface polishing of automobile injection molding shell

Abstract

The utility model relates to a positioning fixture for automobile injection molding shell surface polishing, which comprises a bottom plate, the middle part of the bottom plate is in sliding connection with a stepped supporting plate, the stepped supporting plate consists of a plurality of steps, an inclined plane is arranged between every two adjacent steps, clamping push plates are arranged on the bottom plate in parallel on the two sides of the stepped supporting plate, and the clamping push plates are arranged on the bottom plate. The side of each clamping push plate is fixedly connected with a clamping air cylinder, a first positioning support and a second positioning support are arranged on the bottom plate in the direction parallel to the vertical direction of the clamping push plates, a lifting positioning plate is connected to the second positioning support in a sliding mode, and a spring is arranged between the lifting positioning plate and the second positioning support. A lifting air cylinder is fixedly connected to the position, between the two clamping push plates, of the bottom plate. The clamping device has the beneficial effects that the clamping device can adapt to positioning and clamping of automobile injection molding shells with different specifications, and can be automatically jacked after machining is completed, so that unloading is convenient.

Description

Technical Field

[0001] The utility model relates to the field of injection molding production and processing equipment, in particular to a positioning fixture for polishing the surface of an automobile injection molding shell. Background Art

[0002] The injection-molded housing of an automobile is a housing that is generally cubic and open at one end. After the injection molding process is completed, there are still redundant protrusions on the surface of the housing after demolding and waste removal, so the upper end surface of the housing needs to be polished.

[0003] The existing automobile injection molded shell is positioned by a fixture and tightened by a cylinder, but the existing fixture can only adapt to the positioning and clamping of injection molded shells of a single size, while automobile injection molded shells have various specifications, and the overall heights of automobile injection molded shells of different specifications are different. Therefore, a positioning fixture for surface polishing of automobile injection molded shells is needed. Utility Model Content

[0004] The utility model aims to provide a positioning fixture for polishing the surface of an automobile injection-molded shell, which can adapt to the positioning and clamping of automobile injection-molded shells of different specifications, and can automatically lift up after processing is completed, so as to facilitate unloading.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for polishing the surface of an automobile injection-molded shell, comprising a base plate, a step support plate slidably connected to the middle part of the base plate, the step support plate is composed of a plurality of steps, and an inclined surface is provided between every two adjacent steps, clamping push plates are arranged in parallel on both sides of the base plate located on the step support plate, and a clamping cylinder is fixedly connected to the side of each clamping push plate, a first positioning bracket and a second positioning bracket are arranged on the base plate in parallel to the vertical direction of the clamping push plate, a lifting positioning plate is slidably connected to the second positioning bracket, a spring is provided between the lifting positioning plate and the second positioning bracket, and a lifting cylinder is fixedly connected to the base plate between the two clamping push plates.

[0006] Furthermore, a screw adjustment module is fixedly connected to the bottom plate at the side of the step support plate, and a moving platform of the screw adjustment module is fixedly connected to the step support plate.

[0007] Furthermore, the first positioning bracket and the second positioning bracket are both provided with through holes corresponding to the step support plate.

[0008] Furthermore, a clearance groove is opened in the middle of the step support plate, and the lifting cylinder is located in the clearance groove.

[0009] Furthermore, the lower end of the lifting and positioning plate is rotatably connected to a rotating shaft, and the rotating shaft is tangent to the step support plate.

[0010] The beneficial effects of the present utility model are as follows: Through the combined use of the stepped support plate, the clamping push plate, the clamping cylinder, the first positioning bracket, the second positioning bracket, the lifting positioning plate, and the lifting cylinder, it can adapt to the positioning and clamping of automotive injection molded shells of different specifications, and can automatically lift after processing is completed, facilitating unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 FIG. 1 is a schematic view of the first perspective of a positioning fixture for surface grinding of an automotive injection molded shell of the present utility model.

[0012] Figure 2 FIG. 2 is a schematic view of the second perspective of a positioning fixture for surface grinding of an automotive injection molded shell of the present utility model.

[0013] Figure 3 FIG. 3 is a schematic view of the third perspective of a positioning fixture for surface grinding of an automotive injection molded shell of the present utility model.

[0014] In the figures: 1, bottom plate; 2, stepped support plate; 201, relief groove; 301, clamping push plate; 302, clamping cylinder; 4, first positioning bracket; 5, second positioning bracket; 501, lifting positioning plate; 502, spring; 503, rotating shaft; 6, lifting cylinder; 7, screw rod adjustment module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] Refer to Figures 1 - 3 A positioning fixture for surface grinding of an automotive injection molded shell as shown, comprising a bottom plate 1. A stepped support plate 2 is slidably connected to the middle of the bottom plate 1. The stepped support plate 2 consists of multiple steps, and an inclined surface is provided between every two adjacent steps. Clamping push plates 301 are arranged in parallel on both sides of the stepped support plate 2 on the bottom plate 1. A clamping cylinder 302 is fixedly connected beside each clamping push plate 301. A first positioning bracket 4 and a second positioning bracket 5 are arranged in parallel on the bottom plate 1 in a direction perpendicular to the clamping push plates 301. A lifting positioning plate 501 is slidably connected to the second positioning bracket 5. A spring 502 is arranged between the lifting positioning plate 501 and the second positioning bracket 5, and the spring 502 is used to reset the lifting positioning plate 501. A lifting cylinder 6 is fixedly connected between the two clamping push plates 301 on the bottom plate 1.

[0017] A screw rod adjustment module 7 is fixedly connected to the base plate 1 beside the stepped support plate 2. The moving platform of the screw rod adjustment module 7 is fixedly connected to the stepped support plate 2, and the screw rod adjustment module 7 is used to adjust the position of the stepped support plate 2.

[0018] Through holes corresponding to the stepped support plate 2 are formed in both the first positioning bracket 4 and the second positioning bracket 5, and the stepped support plate 2 is used to position and support the automotive injection molded housing.

[0019] A relief groove 201 is formed in the middle of the stepped support plate 2. When the stepped support plate 2 slides and adjusts, the relief groove 201 can make way for the lifting cylinder 6 to prevent interference between the lifting cylinder 6 and the stepped support plate 2. The lifting cylinder 6 is located in the relief groove 201.

[0020] A rotating shaft 503 is rotatably connected to the lower end of the lifting positioning plate 501, and the rotating shaft 503 is tangent to the stepped support plate 2. The arrangement of the rotating shaft 503 can ensure that the stepped support plate 2 wears during sliding adjustment.

[0021] The working principle of the present utility model is as follows: Before the present utility model is used, first, the screw rod adjustment module 7 is used to drive the position of the stepped support plate 2 to slide the required step to between the two clamping cylinders 302. Under the sliding action of the stepped support plate 2, the lifting positioning plate 501 will also rise and fall under the sliding of the stepped support plate 2. After the adjustment is completed, the automotive injection molded housing to be polished is placed on the stepped support plate 2 along the lifting positioning plate 501 and the first positioning bracket 4. Then, the clamping cylinder 302 is used to drive the clamping push plate 301 to clamp the automotive injection molded housing. After clamping, the plastic shell can be polished (the end face of the plastic shell to be polished faces upward). After the polishing process is completed, the clamping cylinder 302 releases the clamp, and the lifting cylinder 6 jacks up the housing for unloading.

[0022] The above embodiments are used to further illustrate the present utility model, but do not limit the present utility model to these specific embodiments. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be understood to be within the protection scope of the present utility model.

Claims

1. A positioning fixture for polishing the surface of an automobile injection-molded housing, characterized in that: The invention comprises a base plate (1), the middle part of which is slidably connected to a step support plate (2), the step support plate (2) being composed of a plurality of steps, and an inclined surface being provided between each two adjacent steps, clamping push plates (301) being provided in parallel on both sides of the step support plate (2) on the base plate (1), and a clamping cylinder (302) being fixedly connected to the side of each clamping push plate (301), a first positioning bracket (4) and a second positioning bracket (5) being provided in parallel with the vertical direction of the clamping push plate (301) on the base plate (1), a lifting positioning plate (501) being slidably connected to the second positioning bracket (5), a spring (502) being provided between the lifting positioning plate (501) and the second positioning bracket (5), and a lifting cylinder (6) being fixedly connected to the base plate (1) between the two clamping push plates (301).

2. A positioning fixture for polishing the surface of an automobile injection-molded housing according to claim 1, characterized in that: A screw adjustment module (7) is fixedly connected to the bottom plate (1) at the side of the step support plate (2), and a moving platform of the screw adjustment module (7) is fixedly connected to the step support plate (2).

3. The positioning fixture for polishing the surface of an automobile injection-molded housing according to claim 1, characterized in that: The first positioning bracket (4) and the second positioning bracket (5) are both provided with through holes corresponding to the step support plate (2).

4. A positioning fixture for polishing the surface of an automobile injection-molded housing according to claim 1, characterized in that: A clearance groove (201) is provided in the middle of the step support plate (2), and the lifting cylinder (6) is located in the clearance groove (201).

5. The positioning fixture for polishing the surface of an automobile injection-molded housing according to claim 1, characterized in that: The lower end of the lifting and positioning plate (501) is rotatably connected to a rotating shaft (503), and the rotating shaft (503) is tangent to the step support plate (2).

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