Bidirectional adjustable self-centering machining supporting auxiliary tool

Abstract

The utility model relates to a two-way adjustable self-centering supporting assistive device for machining, which solves the problems in the prior art. Comprising a base, a limiting pin, a front cushion block, a rear cushion block, an adjusting hand wheel, an elastic check ring, an adjustable cushion block and a T-shaped block. The bottom end of the device body is provided with a front adjustable cushion block and a rear adjustable cushion block, the adjustable cushion blocks are provided with a base, the front end and the rear end of the base are provided with a front cushion block and a rear cushion block respectively, the front cushion block and the rear cushion block are matched with a dovetail seat on the base through dovetail grooves in the bottom ends, and the base is provided with a limiting pin used for limiting the sliding stroke of the front cushion block and the rear cushion block. An adjusting hand wheel is matched with a threaded hole in the middle of the front cushion block through a through hole in the middle of the rear cushion block, a clamping groove in the rear end of the adjusting hand wheel is provided with an elastic check ring used for enabling the rear cushion block to move, the front cushion block and the rear cushion block slide on the base by rotating the adjusting hand wheel, and the effects of centering, auxiliary supporting and the like on machined products on the front cushion block and the rear cushion block are achieved. The clamp is quick and convenient to operate, wide in application range and capable of guaranteeing quick positioning of workpieces and rigidity and stability of clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of auxiliary support of large product in machining, specifically to a kind of two-way adjustable self-centering machining support auxiliary tool. BACKGROUND

[0002] Support auxiliary tool has become an indispensable link in machining.It is a tool used to support workpiece in the machining process, which can improve the rigidity and stability of workpiece clamping in production process. Therefore, support auxiliary tool is widely used in the field of machining, covering almost all industrial fields.

[0003] At present, there are many varieties of machining products, especially for scientific research trial production, the flexibility requirement of support auxiliary tool is very high, the existing support auxiliary tool needs to meet the above requirements, but also has the following shortcomings:

[0004] 1. Enterprise production and manufacturing parts have diversity and variability, different support auxiliary tools are needed to meet production needs, and the cost of support auxiliary tool material and production cost is expensive.

[0005] 2. The design and production cycle of support auxiliary tool is long, generally needs one to two months, which seriously affects the plan node of part output, greatly affects the production efficiency of enterprise, and also greatly increases the production cost.

[0006] 3. The existing support auxiliary tool can only assist in supporting special parts, and cannot be used for other parts, which needs to be redesigned and made.

[0007] 4. The existing support auxiliary tool has small height adjustment range, and most of the equipment has large difference between center distance of indexing head and height of machine tool workbench, so that the flexibility degree is not high when used.

[0008] 5. The existing support auxiliary tool has poor positioning accuracy, insufficient clamping force and long workpiece clamping time.

[0009] In view of the above problems, there is no reasonable and effective solution in current production. UTILITY MODEL CONTENT

[0010] The utility model aims to provide a kind of two-way adjustable self-centering machining support auxiliary tool to solve the series of problems proposed in the above background technology.

[0011] The utility model is realized by the following technical solutions:

[0012] The utility model discloses a bidirectional adjustable self-centering mechanical processing support auxiliary tool, including base, limit pin, front, rear cushion block, adjusting hand wheel, elastic baffle, adjustable cushion block, T block, the bottom of device main part is two adjustable cushion blocks, and adjustable cushion block installs base, and the both ends of base install front, rear cushion block respectively, and front, rear cushion block passes through the dovetail groove of bottom and dovetail seat on base cooperation, and the limit pin on base is used for limiting the sliding stroke of front, rear cushion block, and the rear end slot of adjusting hand wheel is equipped with elastic baffle and is used for making rear cushion block move, and by rotating adjusting hand wheel, makes front, rear cushion block slide on base, reaches the centering, auxiliary support etc.

[0013] Further, the two adjustable cushion blocks have different step surfaces and U-shaped screw through holes, the two ends of the base have U-shaped screw through holes matched with the step surfaces and the U-shaped screw through holes, and the base can be placed on the adjustable cushion blocks at a suitable height according to the characteristics of the machined parts, and the base is fixed on the machine tool workbench by using M16 screws, gaskets, the U-shaped screw through holes of the base and the U-shaped screw through holes of the adjustable cushion blocks and the T-shaped blocks placed at the bottom of the two adjustable cushion blocks.

[0014] Further, the hole matched with the limit pin on the base is a blind hole, the limit pin is tightly fitted into the blind hole of the base, the clearance is not more than 0.02 mm, and the depth of the limit pin in the base is not less than 1 / 2 of the length of the limit pin, so that the limit pin is prevented from swinging or even falling off during the limiting in the working state.

[0015] Further, the adjusting hand wheel has a handle position with a diameter more than three times of the diameter of the slender rod position, and the outer diameter of the handle position is treated by knurling or other methods to increase friction, so that the operation is facilitated.

[0016] Further, the center positions of the threaded hole of the front cushion block and the screw through hole of the rear cushion block deviate by not more than 0.1 mm, the clearance between the screw through hole of the rear cushion block and the adjusting hand wheel is not more than 0.1 mm, and the length of the connecting rod of the adjusting hand wheel needs to meet the requirement that the adjusting hand wheel does not fall off when the distance between the front cushion block and the rear cushion block is the largest.

[0017] Further, the hardness of the auxiliary tool components is not less than HRC50, the surface is treated by rust prevention, and the flatness of all matching positions is not less than 0.05 mm.

[0018] Compared with the common auxiliary support and other auxiliary supports, the utility model has the advantages of not only having the functions of the common auxiliary support, but also being quick, convenient and labor-saving in operation, wide in application range, capable of guaranteeing the rigidity and stability of workpiece positioning and clamping, reducing the labor cost, and improving the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is the three-dimensional structure schematic view of the utility model base;

[0021] Figure 3 It is the utility model installation structure schematic view;

[0022] Figure 4 It is the three-dimensional structure schematic view of the utility model front, back cushion block;

[0023] Figure 5 It is the utility model front, back cushion block and base installation structure schematic view;

[0024] Figure 6 It is the utility model main body fixed to machine tool workbench mechanism schematic view;

[0025] Reference signs:

[0026] 1, auxiliary tool main body;2, adjustable cushion block;2-1, step surface;2-2, U type screw through hole;3, base;3-1, dovetail seat;3-2, four holes;3-3, U type screw through hole;4, front, back cushion block;4-1, dovetail groove;4-2, through hole;4-3, threaded hole;5, limit pin;6, adjusting hand wheel;6-1 card slot;7, elastic baffle ring;8, T block. Specific implementation

[0027] Reference Figures 1-6 , the utility model belongs to a kind of two-way adjustable self-centering mechanical processing support auxiliary tool, including auxiliary tool main body 1, the bottom end of auxiliary tool main body 1 is front and back two adjustable cushion blocks 2, adjustable cushion block 2 is installed base 3, the front and back ends of base 3 are installed front, back cushion block 4 respectively, front, back cushion block 4 is matched with the dovetail seat 3-1 on base 3 through the dovetail groove 4-1 of bottom end, four holes 3-2 on base 3 are respectively equipped with limit pin 5 to limit the sliding stroke of front, back cushion block 4, adjusting hand wheel 6 passes through the middle through hole 4-2 of back cushion block and cooperates with the middle threaded hole 4-3 of front cushion block, adjusting hand wheel 6 rear end card slot 6-1 is equipped with elastic baffle ring 7 to make back cushion block 4 move, by rotating adjusting hand wheel 6, front, back cushion block 4 is slid on base 3, reach the centering, auxiliary support etc. of the product of processing on front, back cushion block 4.

[0028] The adjustable pad 2 has different step surfaces 2-1 and U-shaped screw through holes 2-2, the base 3 has U-shaped screw through holes 3-3 at two ends, the base 3 can be placed on the different step surfaces 2-1 of the adjustable pad 2 according to the characteristics of the machined parts, and the base 3 is fixed on the machine tool workbench through the U-shaped screw through holes 3-3 at two ends of the base 3, the U-shaped screw through holes 2-2 on the adjustable pad 2 and the T-shaped block 8 by using M16 screws and gaskets.

[0029] In the specific implementation, first, according to the characteristics of the machined parts and the center distance of the indexing head of the used equipment, the height dimension of the machine tool workbench is adjusted to the appropriate height by the adjustable pad 2, M16 screws and gaskets are used to fix the T-shaped block 8 on the workbench through the U-shaped screw through holes 3-3 at two ends of the base 3, the U-shaped screw through holes 2-2 on the adjustable pad 2 and the T-shaped block 8, and then the distance between the front and rear pads 4 is preliminarily adjusted according to the size of the outer diameter of the machined part.

[0030] The utility model has the advantages of compact support auxiliary structure, convenient operation, high generalization degree, and is suitable for most large-scale product machining in the current vertical four-axis milling machine.

[0031] 1. In the utility model, the compact support auxiliary structure is convenient to operate and has high generalization degree, and is suitable for most large-scale product machining in the current vertical four-axis milling machine.

[0032] 2. In the utility model, the support auxiliary structure plays a very important role in maintaining the stability and precision of the machine tool, and helps to reduce the machining error and improve the machining efficiency.

[0033] 3. In the utility model, the support auxiliary structure can prevent the clamping force from damaging the positioning of the workpiece, and helps to reduce the deformation of the workpiece under stress and ensure the stability and precision of the workpiece during machining.

[0034] 4. In the utility model, the support auxiliary structure bears the weight, clamping force or cutting force of the workpiece, and helps to reduce the movement or vibration of the workpiece during machining, thereby maintaining the accuracy and efficiency of machining.

[0035] 5. In the utility model, the support auxiliary structure increases the rigidity and stability of the workpiece, and supports the workpiece by improving the clamping rigidity and stability of the workpiece, but this usually does not affect the positioning accuracy of the workpiece after the workpiece has been positioned.

[0036] 6. In the utility model, the support auxiliary tool can be adjusted to the appropriate height through the adjustable cushion block according to the characteristics of the machined parts and the used equipment, so as to avoid the problem that the degree of flexibility is not high when the machine tool is used due to the large difference between the center distance of the indexing head and the height size of the machine tool workbench.

Claims

1. A bidirectional adjustable self-centering machining support fixture, characterized in that: The device comprises a base, a limiting pin, front and rear pads, an adjusting hand wheel, an elastic stop ring and adjustable pads; the bottom end of the device body is provided with two adjustable pads, the adjustable pads are provided with the base, the front and rear ends of the base are provided with the front and rear pads, the front and rear pads are matched with the dovetail groove at the bottom end and the dovetail seat on the base, the base is provided with the limiting pin for limiting the sliding stroke of the front and rear pads, the adjusting hand wheel is matched with the middle threaded hole of the front pad through the middle through hole of the rear pad, and the rear end clamping groove of the adjusting hand wheel is provided with the elastic stop ring for moving the rear pad.

2. The bidirectional adjustable self-centering machining support assistive device according to claim 1, characterized in that: The two adjustable pads are provided with stepped surfaces with different heights and U-shaped screw through holes, the two ends of the base are provided with U-shaped screw through holes matched with the stepped surfaces and the U-shaped screw through holes, and the base can be placed on the stepped surface with the suitable height according to the characteristics of the machined parts, and the base is fixed on the machine tool workbench by the T-shaped block through the U-shaped screw through holes at the two ends of the base, the U-shaped screw through holes on the adjustable pads and the T-shaped block placed at the bottom of the two adjustable pads.

3. The bidirectional adjustable self-centering machining support assistive device according to claim 1, wherein: The hole matched with the limiting pin on the base is a blind hole, the limiting pin is tightly matched with the blind hole of the base, the gap is not more than 0.02 mm, and the depth of the limiting pin in the base is not less than 1 / 2 of the length of the limiting pin.

4. The bidirectional adjustable self-centering machining support assist of claim 1, wherein: The adjusting hand wheel adopts the method of increasing the friction of the handle position outer diameter position.

5. The bidirectional adjustable self-centering machining support assist of claim 1, wherein: The center position deviation of the threaded hole of the front pad and the screw through hole of the rear pad is not more than 0.1 mm, and the gap between the screw through hole of the rear pad and the adjusting hand wheel is not more than 0.1 mm.

6. The bidirectional adjustable self-centering machining support assist of claim 1, wherein: The hardness of the auxiliary components is not less than HRC50, the surface is treated by rust prevention, and the flatness of all matching positions is not less than 0.05 mm.

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