Shell positioning and machining clamp

Abstract

The utility model relates to the technical field of machining, in particular to a shell positioning and machining clamp. The shell positioning and machining clamp comprises a base, a central column is arranged on the base, an installation base of the central column is arranged at the bottom of the central column, a plurality of centrosymmetric movable rods are arranged in the installation base and move horizontally, a conical lower pressing head is arranged at the tail end of each movable rod, and the lower pressing head is connected with the central column. The lower pressing head vertically moves up and down, the lower pressing head is driven by the oil cylinder, the lower pressing head moves downwards, the movable rod horizontally moves outwards under the action of the conical inclined face, and centering of the bottom of the shell to be machined is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a housing positioning processing fixture. Background Art

[0002] The reversing box is a common transmission component in the mechanical field. Its special mechanical structure makes the processing of its shell more difficult. Currently, during the processing, most of them still use conventional fixtures, which require manual work to fix the shell in the fixture, resulting in low processing efficiency. Utility Model Content

[0003] (1) Technical problems solved

[0004] The utility model provides a housing positioning processing clamp, which can fix the housing on the clamp by adopting an oil cylinder method, firmly clamps the housing, facilitates center positioning, and solves the technical problem of low processing efficiency of conventional technologies.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The housing positioning and processing fixture of the utility model is characterized by comprising a base,

[0008] The base is provided with a central column, and the bottom of the central column is provided with a mounting seat for the central column.

[0009] The mounting base is provided with a plurality of centrally symmetrical movable rods, which move horizontally.

[0010] The end of the movable rod is provided with a conical pressing head, which moves vertically up and down. The pressing head is driven by the oil cylinder and moves downward. Under the action of the conical inclined surface, the movable rod moves outward horizontally.

[0011] Preferably, the mounting seat is further provided with a front fixing mechanism.

[0012] The front-end fixing mechanism includes a double-piston-rod hydraulic cylinder arranged at the bottom of the mounting seat, and the top ends of the two piston rods of the double-piston-rod hydraulic cylinder are provided with clamping arms. The mounting seat is provided with a mounting hole through which the clamping arm passes, and the mounting hole is provided with a mounting axis of the clamping arm.

[0013] Preferably, the clamping end of the clamping arm is provided with a fixing head.

[0014] Preferably, a positioning clamp is provided on the central column, and a positioning head is provided on the positioning clamp.

[0015] Preferably, the position of the positioning head is adjustable.

[0016] Preferably, three centrally symmetrical movable rods are provided in the mounting seat.

[0017] Preferably, the mounting seat is further provided with a plurality of housing fixing heads.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The shell positioning processing fixture described in the present invention includes a base, a center column is provided on the base, a center column mounting seat is provided at the bottom of the center column, a plurality of centrally symmetrical movable rods are provided in the mounting seat, the movable rods move horizontally, and a conical downward pressure head is provided at the end of the movable rods, and the downward pressure head moves vertically up and down. The downward pressure head is driven by an oil cylinder and moves downward. Under the action of the conical inclined surface, the movable rod moves horizontally outward, thereby realizing the centering of the bottom of the shell to be processed.

[0021] The mounting seat is also provided with a front-end fixing mechanism, which includes a double-piston-rod hydraulic cylinder arranged at the bottom of the mounting seat, and clamping arms are provided at the top ends of the two piston rods of the double-piston-rod hydraulic cylinder. The mounting seat is provided with a mounting hole through which the clamping arm passes, and the mounting hole is provided with a mounting axis of the clamping arm. The clamping end of the clamping arm is provided with a fixing head, so that the front part of the shell to be processed is fixed more firmly.

[0022] The center column is provided with a positioning clamp, and the positioning clamp is provided with a positioning head, so as to realize the centering of the top of the shell to be processed;

[0023] The position of the positioning head is adjustable and can process workpieces of different sizes;

[0024] The mounting seat is also provided with a plurality of housing fixing heads, which can fix the workpiece more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the housing positioning processing fixture described in the utility model;

[0026] Figure 2 It is a structural diagram of the front-end fixing mechanism;

[0027] Figure 3 1. It is a schematic diagram of the positioning clamp structure;

[0028] Figure 4 It is a schematic diagram of the internal structure of the central column;

[0029] Figure 5 It is a schematic diagram of the housing positioning processing fixture of the present invention after assembling the housing to be processed. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings, but the present application is not limited to the specific embodiments disclosed below.

[0031] like Figure 1-5 The housing positioning and processing fixture of the present invention comprises a base 1, a center column 2 is provided on the base, and a center column mounting seat 3 is provided at the bottom of the center column 2.

[0032] The mounting base 3 is provided with a plurality of centrally symmetrical movable rods 4, which are capable of horizontal movement.

[0033] A conical pressing head 5 is provided at the end of the movable rod 4. The pressing head 5 moves vertically up and down. The pressing head 5 is driven by an oil cylinder and moves downward. Under the action of the conical inclined surface, the movable rod 4 moves horizontally outward.

[0034] The mounting seat 3 is also provided with a front fixing mechanism 6.

[0035] The front-end fixing mechanism 6 includes a double-piston-rod hydraulic cylinder 61 arranged at the bottom of the mounting seat, and the top ends of the two piston rods of the double-piston-rod hydraulic cylinder 6 are provided with clamping arms 62. The mounting seat 6 is provided with a mounting hole through which the clamping arm 62 passes, and the mounting hole is provided with a mounting shaft 63 of the clamping arm.

[0036] The clamping end of the clamping arm 62 is provided with a fixing head 621 .

[0037] A positioning clamp 21 is provided on the central column 2 , and a positioning head 211 is provided on the positioning clamp.

[0038] The position of the positioning head 211 is adjustable.

[0039] Three centrally symmetrical movable rods 4 are arranged in the mounting seat 3 .

[0040] The mounting seat 3 is further provided with a plurality of housing fixing heads 7 .

[0041] Working principle:

[0042] The shell A to be processed is put on the center column 2. At this time, the downward pressure head 5 in the center column 2 is pressed down by the drive of the oil cylinder, and the movable rod 4 is moved horizontally outward under the action of the conical inclined surface to center the hole position below the shell A to be processed. After the shell A to be processed is placed front, back, left and right, the positioning clamp 21 confirms the position of the hole above the shell A to be processed. When the positioning head 211 is stuck in the positioning hole above the shell A to be processed, it means that the center above the shell A to be processed is centered. At this time, the front end fixing mechanism 6 is under the action of the double-piston rod hydraulic cylinder 61, and the clamping arm 62 clamps the front part of the shell A to be processed. The fixed head 7 fixes the upper end face of the shell A to be processed under the drive of the oil cylinder, completing the assembly of the shell A to be processed in the fixture, and the subsequent processing steps can be entered.

Claims

1. A housing positioning and processing fixture, characterized in that: Including base, The base is provided with a central column, and the bottom of the central column is provided with a mounting seat for the central column. The mounting base is provided with a plurality of centrally symmetrical movable rods, which move horizontally. The end of the movable rod is provided with a conical pressing head, which moves vertically up and down. The pressing head is driven by the oil cylinder and moves downward. Under the action of the conical inclined surface, the movable rod moves outward horizontally.

2. The housing positioning and processing fixture according to claim 1, characterized in that: The mounting seat is also provided with a front end fixing mechanism. The front-end fixing mechanism includes a double-piston-rod hydraulic cylinder arranged at the bottom of the mounting seat, and the top ends of the two piston rods of the double-piston-rod hydraulic cylinder are provided with clamping arms. The mounting seat is provided with a mounting hole through which the clamping arm passes, and the mounting hole is provided with a mounting axis of the clamping arm.

3. The housing positioning and processing fixture according to claim 2, characterized in that: The clamping end of the clamping arm is provided with a fixing head.

4. The housing positioning and processing fixture according to claim 1, characterized in that: A positioning clamp is provided on the central column, and a positioning head is provided on the positioning clamp.

5. The housing positioning and processing fixture according to claim 4, characterized in that: The position of the positioning head is adjustable.

6. The housing positioning and processing fixture according to claim 1, characterized in that: Three centrally symmetrical movable rods are arranged in the mounting seat.

7. The housing positioning and processing fixture according to claim 1, characterized in that: The mounting seat is also provided with a plurality of housing fixing heads.

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