Auxiliary sliding positioning mechanism and roller type rapid clamping fixture

Abstract

An auxiliary sliding positioning mechanism and a roller type rapid clamping fixture comprise a bottom plate perpendicularly connected to the lower clamping side of a fixing plate of a clamping mechanism, a left guide rail and a right guide rail which are symmetrical to each other are arranged on the upper surface of the bottom plate and perpendicular to the fixing plate, and a plurality of rollers are arranged on the opposite faces of the left guide rail and the right guide rail. The axes of the rollers are equal in height and parallel to the bottom plate and the fixing plate, the upper edges of the rollers are higher than the left guide rail and the right guide rail, a sliding plate parallel to the bottom plate is slidably arranged on the rollers, and a space for containing workpieces is reserved on the sliding plate. Through reasonable arrangement of component structures, during clamping, a workpiece only needs to be placed on the sliding plate for coarse positioning, the sliding plate is pushed towards the direction of the fixing plate, the workpiece and the clamping mechanism are positioned and clamped, the whole process is easy to operate, the workpiece does not need to be directly clamped to the clamping mechanism, the clamping precision is high, the efficiency is high, and the labor intensity is low.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic retarder technology, specifically relating to an auxiliary sliding positioning mechanism and a roller-type quick clamping fixture. Background Technology

[0002] like Figure 3 The transmission rear housing shown weighs 11.7 kg and measures 350 mm wide * 460 mm long * 265 mm high. The machining work is indicated by the blue markings. To meet the workpiece's precision requirements, the process layout requires machining the workpiece upright (e.g., ...). Figure 4 As shown in the figure, when processing the workpiece upright, the following difficulties are added to the clamping of the workpiece: the workpiece is difficult to position, and a person needs to hold the workpiece and install it on the fixture; the workpiece is relatively heavy, and frequent holding and mounting is labor-intensive. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this utility model is to provide an auxiliary sliding positioning mechanism and a roller-type quick clamping fixture to solve the problems of difficult gearbox clamping and high labor intensity.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes:

[0005] An auxiliary sliding positioning mechanism includes a base plate vertically connected to the lower clamping side of a fixed plate of a clamping mechanism. The upper surface of the base plate is provided with a left guide rail and a right guide rail that are symmetrical to each other and perpendicular to the fixed plate. Multiple rollers are provided on the opposite surfaces of the left guide rail and the right guide rail, and each roller has a gap with the left guide rail and the right guide rail. The axes of each roller are at the same height and parallel to the base plate and the fixed plate. The upper edge of each roller is higher than the left guide rail and the right guide rail. A sliding plate parallel to the base plate slides on each roller, and a space is left on the sliding plate for placing the workpiece.

[0006] Preferably, the lower part of the rollers on the opposite sides of the left and right guide rails is provided with a groove parallel to the base plate, and the lower part of the slide plate is connected with two left and right symmetrical slide plate guides. It also includes a limiting shaft that passes through the slide plate guides and the adjacent grooves in sequence, and there is space between the slide plate guides and the rollers.

[0007] Preferably, the contact surface between the left guide rail and the adjacent skateboard guide is provided with a limiting slope that matches the structure of the adjacent skateboard guide, and the contact surface between the right guide rail and the adjacent skateboard guide is provided with a limiting slope that matches the structure of the adjacent skateboard guide.

[0008] Preferably, a stop is provided inside the chute near its outer end.

[0009] Preferably, the slide plate is equipped with a positioning plate, and the positioning plate has space for placing the workpiece.

[0010] Preferably, the skateboard has a handle at the outer end.

[0011] A kind of roller type quick clamping fixture, including clamping mechanism, clamping mechanism includes vertically arranged fixed plate, one side of fixed plate is clamping side, fixed plate clamping side is equipped with clamping unit, further including the auxiliary sliding positioning mechanism disclosed in the application.

[0012] Preferably, the clamping unit includes a rhombic pin and a circular pin fixed on the clamping side of the fixed plate, and the space between the rhombic pin and the circular pin is matched with the diagonal structure of the workpiece.

[0013] Preferably, the clamping unit further includes a plurality of fixed support seats fixed on the clamping side of the fixed plate, each fixed support seat is provided with a rotary pressing cylinder and a support block, and the space between each rotary pressing cylinder is left for clamping the workpiece, and the space between each support block is left for positioning and supporting the workpiece.

[0014] Preferably, the clamping unit further includes a plurality of floating support seats fixed on the clamping side of the fixed plate, each floating support seat is provided with a hydraulic floating support cylinder, and each hydraulic floating support cylinder is circumferentially arranged on the side of the workpiece and floatingly contacts the side of the workpiece.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) The auxiliary sliding positioning mechanism of the utility model, by reasonable setting of component structure, when used on the roller type quick clamping fixture, only needs to place the workpiece on the sliding plate, push the sliding plate to the direction of the fixed plate, at this time, the sliding plate is driven to slide under the sliding contact of each roller, so that the workpiece is positioned and clamped by the clamping mechanism, the whole process is simple to operate, does not need to be directly held and assembled to the clamping mechanism, has high clamping precision and high efficiency, and has small labor intensity.

[0017] (2) The auxiliary sliding positioning mechanism of the utility model, by reasonable setting of component structure, realizes the guided sliding of the sliding plate, avoids the sliding plate from coming off, and guarantees the stability of the whole mechanism.

[0018] (3) The roller type quick clamping fixture of the utility model, by reasonable setting of component structure, only needs to place the workpiece on the positioning plate to realize rough positioning when clamping, and push the sliding plate to the direction of the fixed plate, so that the workpiece is positioned and clamped by the clamping mechanism, the whole process is simple to operate, does not need to be directly held and assembled to the clamping mechanism, has high clamping precision and high efficiency, and has small labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, and are used together with the specific embodiments below to explain the utility model, but do not constitute the limitation to the utility model. In the drawings:

[0020] Figure 1 It is the front view of the roller type quick clamping fixture of the utility model;

[0021] Figure 2 For Figure 1 A-A section view;

[0022] Figure 3 For workpiece schematic diagram;

[0023] Figure 4 For workpiece installation view;

[0024] Figure 5 For workpiece clamping schematic diagram of example 2.

[0025] The various reference signs in the drawings represent:

[0026] 1-base plate; 2-fixed plate; 3-rhombic pin; 4-fixed support seat; 5-rotary pressing cylinder; 6-support block; 7-floating support seat; 8-hydraulic floating cylinder; 9-pressure gauge; 10-sequence valve; 11-circular pin; 12-positioning plate; 13-sliding plate; 14-nut; 15-right guide rail; 16-roller; 17-sliding plate guide; 18-limiting shaft; 19-handle; 20-left guide rail; 21-accumulator; 22-internal hexagonal bolt; 23-coupling valve; 24-stop block; 25-internal hexagonal bolt; 26-pressing bolt. DETAILED DESCRIPTION

[0027] The utility model is not limited to the following specific embodiments, any equivalent transformation based on the technical scheme of the application falls within the protection scope of the utility model.

[0028] It should be noted that the directional terms mentioned in this paper are consistent with the specific direction on the paper or the corresponding direction of the space shown in the drawings; all components and devices in the utility model, such as without special instructions, all adopt the components and devices known in the prior art.

[0029] Example 1

[0030] The embodiment discloses an auxiliary sliding positioning mechanism, which comprises a base plate 1 vertically connected to the lower clamping side of a fixed plate 2 of a clamping mechanism, wherein the upper surface of the base plate 1 is provided with left and right guide rails 20 and 15 which are symmetrical to each other and perpendicular to the fixed plate 2, the opposite surfaces of the left and right guide rails 20 and 15 are each provided with a plurality of rollers 16, the axes of the rollers 16 are at the same height and parallel to the base plate 1 and the fixed plate 2, the upper surfaces of the rollers 16 are higher than those of the left and right guide rails 20 and 15, a sliding plate 13 parallel to the base plate 1 is slid on the rollers 16, and a space for placing a workpiece is reserved on the sliding plate 13.

[0031] Its function is: when it is used on the roller type quick clamping fixture, only need to put the workpiece on the slide plate 13, push the slide plate 13 to the direction of the fixed plate 2, at this time the slide plate 13 is driven under the sliding contact of each roller 16, so that the workpiece is positioned and clamped with the clamping mechanism, the whole process is simple to operate, without direct holding to the clamping mechanism, the clamping precision is high, the efficiency is high, and the labor intensity is small.

[0032] The embodiment discloses that each roller 16 has a certain gap between the left guide rail 20 and the right guide rail 15, so as to avoid the friction resistance of each roller 16 transmission.

[0033] The lower part of the opposite surface of the left guide rail 20 and the right guide rail 15 of the embodiment is provided with a sliding groove 27 parallel to the bottom plate 1, the lower part of the slide plate 13 is connected with two left and right symmetrical slide plate guide pieces 17, and further includes a limiting shaft 18 penetrating the slide plate guide piece 17 and the adjacent sliding groove 27 in sequence, and the slide plate guide piece 17 is spaced from the roller 16; the limiting shaft 18 of the embodiment can be selected as a bolt, when the slide plate 13 slides, the limiting shaft 18 limits the slide plate guide piece 17 in the sliding groove 27, so as to realize the guidance of the slide plate 13 and avoid the slide plate 13 from being taken out.

[0034] The contact surface of the left guide rail 20 and the adjacent slide plate guide piece 17 of the embodiment is provided with a limiting inclined surface matched with the structure of the adjacent slide plate guide piece 17, and the contact surface of the right guide rail 15 and the adjacent slide plate guide piece 17 is provided with a limiting inclined surface matched with the structure of the adjacent slide plate guide piece 17; the longitudinal limiting of the left guide rail 20 and the right guide rail 15 and the adjacent slide plate guide piece 17 is realized, and the slide plate 13 is prevented from being taken out.

[0035] The outer end of the sliding groove 27 of the embodiment is provided with a stop block 24 close to the outer end, so as to prevent the slide plate 13 from being taken out at the outer end of the sliding groove 27.

[0036] The outer end of the slide plate 13 of the embodiment is provided with a handle 19, so as to facilitate the operator to pull / push the handle 19 to realize the sliding of the slide plate 13.

[0037] The slide plate of the embodiment is provided with a positioning plate 12, and the positioning plate 12 has a space for placing the workpiece; the positioning plate 12 can be selected as a nylon positioning plate, and the rough positioning of the workpiece is realized under the action of the positioning plate 12.

[0038] Embodiment 2

[0039] A roller type quick clamping fixture, the clamping mechanism includes a vertically arranged fixed plate 2, one side of the fixed plate 2 is a clamping side, and the clamping side of the fixed plate 2 is provided with a clamping unit, and further includes the auxiliary sliding positioning mechanism disclosed in embodiment 1.

[0040] The action is: when clamping, only need to put the workpiece on the positioning plate 12 to realize rough positioning, and push the sliding plate 13 to the direction of the fixed plate 2, at this time the sliding plate 13 is driven under the sliding contact of each roller 16, so that the workpiece is positioned and clamped with the clamping mechanism, the whole process is simple to operate, without direct holding to the clamping mechanism, the clamping precision is high, the efficiency is high, and the labor intensity is small.

[0041] The clamping unit of the embodiment includes the rhombic pin 3 and the circular pin 11 fixed on the clamping side of the fixed plate 2, and the space between the rhombic pin 3 and the circular pin 11 matches the diagonal structure of the workpiece. It also includes three fixed supporting seats 4 fixed on the clamping side of the fixed plate 2, each of which is provided with a rotary pressing cylinder 5 and a supporting block 6, and the rotary pressing cylinder 5 is provided with a pressing bolt 26, the space between the three rotary pressing cylinders 5 is left for clamping the workpiece, and the space between the supporting blocks 6 is left for positioning and supporting the workpiece, each supporting block 6 cooperates to realize the positioning and supporting of the workpiece, and the rotary pressing cylinder 5 and the pressing bolt 26 cooperate to realize the pressing of the workpiece. The clamping unit also includes a plurality of floating supporting seats 7 fixed on the clamping side of the fixed plate 2, each of which is provided with a hydraulic floating supporting cylinder 8, and each hydraulic floating supporting cylinder 8 is circumferentially arranged on the side of the workpiece and floatingly contacts the side of the workpiece.

[0042] The embodiment also includes a pressure gauge 9 provided on the body 2 to display the internal pressure of the clamp in real time. The embodiment also includes an accumulator 21 provided on the body 2 to keep the internal pressure of the clamp at a relatively stable value and prevent the clamp from being insufficient due to temperature and other reasons.

[0043] When in use, the sliding plate 13 is pulled to the outermost edge of the clamp using the handle 19, the workpiece is placed on the positioning plate 13 according to the required clamping mode, the periphery of the workpiece is tangent to the positioning plate 13 to realize rough positioning, and then the workpiece is pushed to the rhombic pin 3 and the circular pin 11 through the handle 19, and the workpiece is slowly pushed to the supporting block 6 to be tangent to it, at this moment the positioning is completed, the coupling valve 23 is used to supply oil to each cylinder (i.e. the coupling valve 23 is connected to each cylinder through an oil circuit), and each cylinder is provided with a sequence valve 10, under the action of the sequence valve 10, the rotary pressing cylinder 5 presses the workpiece, and the hydraulic floating supporting cylinder 8 supports the workpiece to realize positioning and clamping; after processing, the coupling valve 23 is used to release the pressure of the clamp to loosen the workpiece from the rotary pressing cylinder 5 and the hydraulic floating supporting cylinder 8, and the handle 19 is pulled to pull the workpiece to the periphery of the clamp to complete the disassembly of the workpiece.

[0044] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, which all belong to the protection scope of the present disclosure.

[0045] It should be further noted that various specific technical features described in the above detailed description are not to be interpreted as essential to the present disclosure, and any combination of the various features described in the above detailed description is possible, and should be considered as falling within the scope of the present disclosure.

[0046] Furthermore, any combination of the various embodiments disclosed herein is also possible, and should be considered as falling within the scope of the present disclosure.

Claims

1. An auxiliary sliding positioning mechanism, characterized in that, The base plate (1) is vertically connected to the clamping side of the fixed plate (2) of the clamping mechanism. The upper surface of the base plate (1) is provided with a left guide rail (20) and a right guide rail (15) that are symmetrical to each other. The opposite surfaces of the left guide rail (20) and the right guide rail (15) are provided with multiple rollers (16), and there is a gap between each roller (16) and the left guide rail (20) and the right guide rail (15). The axes of each roller (16) are at the same height and are parallel to the base plate (1) and the fixed plate (2). The upper edge of each roller (16) is higher than the left guide rail (20) and the right guide rail (15). A sliding plate (13) parallel to the base plate (1) slides on each roller (16), and there is space on the sliding plate for placing the workpiece.

2. The auxiliary sliding positioning mechanism as described in claim 1, characterized in that, The lower part of the rollers (16) on the opposite sides of the left guide rail (20) and the right guide rail (15) is provided with a groove (27) parallel to the base plate (1). The lower part of the slide plate (13) is connected with two left and right symmetrical slide plate guides (17). It also includes a limiting shaft (18) that passes through the slide plate guides (17) and the adjacent grooves (27) in sequence. There is a space between the slide plate guides (17) and the rollers (16).

3. The auxiliary sliding positioning mechanism as described in claim 2, characterized in that, The contact surface between the left guide rail (20) and the adjacent skateboard guide (17) is provided with a limiting slope that matches the structure of the adjacent skateboard guide (17), and the contact surface between the right guide rail (15) and the adjacent skateboard guide (17) is provided with a limiting slope that matches the structure of the adjacent skateboard guide (17).

4. The auxiliary sliding positioning mechanism as described in claim 3, characterized in that, A stop (24) is provided inside the chute near its outer end.

5. The auxiliary sliding positioning mechanism as described in any one of claims 1-4, characterized in that, The slide plate is provided with a positioning plate (12), and the positioning plate (12) has space for placing the workpiece.

6. The auxiliary sliding positioning mechanism as described in claim 5, characterized in that, The outer end of the skateboard (13) is provided with a handle (19).

7. A roller-type quick clamping fixture, comprising a clamping mechanism, wherein the clamping mechanism includes a vertically arranged fixed plate (2), one side of the fixed plate (2) being the clamping side, characterized in that, The clamping side of the fixed plate (2) is provided with a clamping unit, and also includes the auxiliary sliding positioning mechanism as described in any one of claims 1-6.

8. The roller-type quick-clamping fixture as described in claim 7, characterized in that, The clamping unit includes a rhomboid pin (3) and a circular pin (11) fixed on the clamping side of the fixed plate (2), and the space between the rhomboid pin (3) and the circular pin (11) matches the diagonal structure of the workpiece.

9. The roller-type quick-clamping fixture as described in claim 8, characterized in that, The clamping unit also includes multiple fixed support seats (4) fixed on the clamping side of the fixed plate (2). Each fixed support seat (4) is provided with a rotary clamping cylinder (5) and a support block (6). There is space between each rotary clamping cylinder (5) for clamping the workpiece, and there is space between each support block (6) for positioning and supporting the workpiece.

10. The roller-type quick-clamping fixture as described in claim 9, characterized in that, The clamping unit also includes multiple floating support seats (7) fixed on the clamping side of the fixed plate (2). Each floating support seat (7) is provided with a hydraulic floating cylinder (8). Each hydraulic floating cylinder (8) is arranged circumferentially on the side of the workpiece and floats in contact with the side of the workpiece.

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