CN216608151U

CN216608151U - Inserted bar type grouping tool for processing hydraulic valve

Info

Publication number: CN216608151U
Application number: CN202123427553.XU
Authority: CN
Inventors: 徐明俊; 刘志强; 夏海友; 王广南; 徐友生; 裴晓梅
Original assignee: Wuxi L&r Precision Machinery Co ltd
Current assignee: Wuxi L&r Precision Machinery Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-27
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a plug-in rod type grouping tool for processing a hydraulic valve, which comprises a positioning device and a pressing device, wherein the positioning device is arranged on the hydraulic valve; the positioning device comprises a positioning supporting block, a positioning seat and a positioning seat; a clamping block is embedded in the side surface of the positioning seat; the surface of the orientation seat is provided with a guide groove, and an orientation key is arranged in the guide groove in a sliding manner; the pressing device comprises a supporting rod, an inserting rod and a guide rod; the inserted bar is arranged at the upper end of the supporting bar in a sliding manner; the inserted link is provided with a second waist hole; the lower end of the guide rod is fixed, and the upper end of the guide rod is embedded into the second waist hole in a matching manner; the tool is stable and reliable in positioning and clamping, high in machining precision, and capable of reducing the auxiliary loading and unloading working hours by adopting double-station machining, reducing the machining cost and improving the production efficiency.

Description

Inserted bar type grouping tool for processing hydraulic valve

Technical Field

The utility model relates to the field of clamping tools, in particular to a plug-in rod type grouping tool for machining a hydraulic valve.

Background

When hydraulic valve parts are machined, in order to facilitate clamping, a conventional process route needs to be gradually machined in a sub-process. However, the requirements on the precision of the relative position between the surfaces of the big end of the hydraulic valve are high, the accumulated error between the processes is large when the processes are increased, the risk of scrapping caused by the fact that the position precision is poor is increased, and a tool which is specially developed for hydraulic valve parts and is stable in clamping is absent at present.

Disclosure of Invention

The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the utility model provides the inserted link type grouping tool for processing the hydraulic valve, which is accurate in positioning and high in processing efficiency.

The technical scheme is as follows: in order to achieve the purpose, the inserted link type grouping tool for processing the hydraulic valve comprises a positioning device; the positioning device comprises a positioning supporting block, a positioning seat and a positioning seat; a clamping block is embedded in the side face of the positioning seat; the surface of the orientation seat is provided with a guide groove, and an orientation key is arranged in the guide groove in a sliding manner; a spring is arranged between the orientation key and the orientation seat; the spring pushes the orientation key to the direction far away from the orientation seat; the directional seat is also provided with a first screw in an inserting manner; the front end of the first screw stretches and props against the spring, and clamping force of the directional key is correspondingly adjusted.

Further, one end of the orientation key, which is far away from the orientation seat, is provided with a V-shaped surface.

Further, a first pressing plate is arranged on the surface of the orientation seat; a first waist hole is formed in the first pressure plate along the direction of the guide groove, and a second screw is inserted into the first waist hole; the front end of the second screw is embedded into the directional key; when the directional key moves back and forth, the second screw moves inside the first waist hole synchronously.

Further, the device also comprises a pressing device; the pressing device comprises a supporting rod, an inserting rod and a guide rod; the inserted bar is arranged at the upper end of the supporting bar in a sliding manner; the inserted link is provided with a second waist hole; the lower end of the guide rod is fixed, and the upper end of the guide rod is embedded into the second waist hole in a matching manner; when the inserted bar reciprocates, the guide bar relatively reciprocates in the second waist hole, and the moving range of the inserted bar is limited.

Furthermore, the pressing device also comprises a corner oil cylinder; a second pressing plate is connected to a cylinder rod of the corner oil cylinder; and the second pressing plate is in press fit with the inserted rod under the driving of the corner oil cylinder.

Further, the positioning device and the pressing device are provided with two groups.

Further, the pressing device further comprises a third screw; the third screw is inserted on the orientation seat in a penetrating manner; the front end of the third screw moves telescopically along the length direction of the guide groove.

Has the advantages that: the utility model relates to a plug-in rod type grouping tool for processing a hydraulic valve, which comprises a positioning device and a pressing device; the positioning device comprises a positioning supporting block, a positioning seat and a positioning seat; a clamping block is embedded in the side face of the positioning seat; the surface of the orientation seat is provided with a guide groove, and an orientation key is arranged in the guide groove in a sliding manner; the pressing device comprises a supporting rod, an inserting rod and a guide rod; the inserted bar is arranged at the upper end of the supporting bar in a sliding manner; the inserted link is provided with a second waist hole; the lower end of the guide rod is fixed, and the upper end of the guide rod is embedded into the second waist hole in a matching manner; two casting surfaces which are relatively high in size and position accuracy requirements, smooth and bright and large enough in area on a hydraulic valve casting are used as rough reference positioning, a pair of insert rods are used as auxiliary pressure plates to press two ends of a valve core precast hole, then the side face of the hydraulic valve is manually pressed by a bolt, and the plane of the large end and the hole on the plane are processed at one time by single clamping, so that the high position accuracy requirements among the surfaces of the large end of the hydraulic valve are easily ensured. And the subsequent process is positioned and processed by taking the processing surface and the hole as a fine reference, so that the extremely high qualified rate of finished products can be easily achieved, the scrap rate is reduced, and the production cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a plug-in rod type grouping tool for machining a hydraulic valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the inserting rod type grouping tool for processing the hydraulic valve comprises a positioning device; the positioning device comprises a positioning support block 9, a positioning seat 20 and an orientation seat 8; a clamping block is embedded in the side surface of the positioning seat 20; the surface of the orientation seat 8 is provided with a guide groove, and an orientation key 1 is arranged in the guide groove in a sliding manner; a spring is arranged between the directional key 1 and the directional seat 8; the spring pushes the orientation key 1 to the direction far away from the orientation seat 8; the directional seat 8 is also provided with a first screw 6 in an inserting manner; the front end of the first screw 6 is used for stretching and propping the spring, and the clamping force of the directional key 1 is correspondingly adjusted.

The positioning device has the function that the part 22 to be processed can be stably placed, the processing direction is determined, and the subsequent compression is facilitated; the position display of the part 22 to be machined after clamping and positioning is given in the figure; the positioning support block 9 is used for being matched with the end face of a part and applying rotation constraint to the part; the fixture block structure can adapt to hydraulic valve surface profiles of different sizes and specifications by changing the shape of the front end profile of the fixture block structure, and meanwhile, the orientation key 1 is matched with the fixture block structure, so that the orientation of the part 22 to be processed can be stabilized from multiple orientations; the reciprocating adjustment allowance of the directional key 1 can be used for adapting to hydraulic valve parts with different specifications; the first screw 6 is used for adjusting the tightness of the spring, so that the directional key 1 can apply different pressures to the processing part 22, and the clamping force is matched with the clamping block structure better.

One end of the directional key 1, which is far away from the directional seat 8, is provided with a V-shaped surface.

The V profile structure can form the cooperation with the boss structure on hydraulic valve surface, and can independently adapt to the boss of multiple size, and its suitability promotes greatly, is favorable to improving the suitability of this frock.

The surface of the orientation seat 8 is also provided with a first pressing plate 4; a first waist hole is formed in the first pressing plate 4 along the direction of the guide groove, and a second screw 3 is inserted into the first waist hole; the front end of the second screw 3 is embedded in the directional key 1; when the directional key 1 is moved back and forth, the second screw 3 is synchronously moved inside the first kidney hole.

The first waist hole can limit the moving range of the directional key 1 by means of the limiting action of the second screw 3, the manual pulling-open and automatic tightening actions of the directional key 1 can be realized by means of the thrust of the spring, and the waist hole ensures the stability and reliability of the actions.

The tool further comprises a pressing device; the pressing device comprises a supporting rod 18, an inserting rod 19 and a guide rod 13; the inserted bar 19 is arranged at the upper end of the supporting bar 18 in a sliding manner; a second waist hole is formed in the inserted link 19; the lower end of the guide rod 13 is fixed, and the upper end of the guide rod is embedded into the second waist hole in a matching manner; when the insert rod 19 reciprocates, the guide rod 13 relatively reciprocates in the second waist hole, and the range of movement of the insert rod 19 is restricted.

The insertion rod 19 has the function of being inserted into a corresponding hole position of the part 22 to be machined, namely the hydraulic valve, so that the constraint force of the tool on the part is further strengthened on the basis of the positioning device, the vibration caused by the influence of a cutter in subsequent machining is reduced, and the machining precision is improved; by utilizing the matching relation of the guide rod 13 and the second waist hole on the inserted rod 19, the moving range of the inserted rod 19 can be restricted, and the problems of aggravated abrasion, reduced precision and the like caused by displacement transition of a movable part are avoided.

The pressing device also comprises a corner oil cylinder 12; a second pressing plate 11 is connected to a cylinder rod of the corner oil cylinder 12; the second pressing plate 11 is in press fit with the inserted rod 19 under the driving of the corner oil cylinder 12.

The corner oil cylinder 12 has the function that the inserted rod 19 can keep self-stability after being matched with the part 22 to be processed through the second pressure plate 11, so that reliable positioning is realized.

The positioning device and the pressing device are provided with two groups.

The cooperation in groups of two sets of devices can realize multistation coproduction, can let processing and clamping work decompose to accomplish on the device of different groups on the one hand, improves machining efficiency, and on the other hand can effectively deal with the poor scheduling problem of the upstream and downstream linkage that simplex position trouble or dismouting speed unstability lead to, promotes the stationarity of whole production.

The compression device further comprises a third screw 7; the third screw 7 is inserted on the orientation seat 8 in a penetrating manner; the tip of the third screw 7 is extended and retracted along the longitudinal direction of the guide groove.

The third screw 7 can be matched with a local part of the part 22 to be processed in a self-rotating feeding mode by means of the stable reference of the orientation seat 8, and the clamping stability is further improved.

On the whole, based on the precision requirement and production practice of the hydraulic valve to be machined, the first process is arranged on the vertical machining center to machine the large end face and the hole on the large end face at one time. Because the casting surface is taken as a rough reference, the positioning contact surfaces of the positioning elements such as the fixture block and the front end of the orientation key adopt tooth surfaces. The tool is provided with two stations, and the positioning and compressing modes are the same. Specifically, the four positioning support blocks support a small-end casting plane of the hydraulic valve to be machined, and limit the movement of a part along a Z axis and the rotational freedom degrees around an X axis and a Y axis; a clamping block is arranged on the side surface of the positioning seat, the tooth surface of the clamping block is attached to the side surface of the hydraulic valve, and the movement of the part along the X axis and the rotational freedom degree of the part around the Z axis are limited; the V-shaped surface of the orientation key is attached to two casting fillets of a hydraulic valve process lug, namely a boss structure, in a line contact mode, the center position of a part is aligned in the Y-axis direction, the moving freedom degree of the part along the Y-axis is limited, so that all six freedom degrees of the hydraulic valve to be processed are limited, and the part is completely positioned. In addition, the inserted rods are used as auxiliary positioning functional parts, a pair of inserted rods are inserted into two ends of the valve core precast hole, and then the pressing plates are driven by the hydraulic oil cylinders to press the inserted rods to press the workpiece.

The working method of the inserted link type grouping tool for processing the hydraulic valve comprises the following steps: the center of the oil circuit bottom plate 10 is provided with a positioning seat 20, two stations of the tool are arranged on two sides of the positioning seat 20 face to face, and the positioning and compressing modes are completely the same. The four positioning supporting blocks 9 are arranged on the oil way bottom plate 10, and the tooth surfaces of the positioning supporting blocks 9 support the small-end casting plane of the part 22 to be processed. The side of the positioning seat 20 is provided with two wedge-shaped grooves, and the two clamping blocks 21 are embedded therein and fixed by a screw pair. The inclined tooth surface of the fixture block 21 is attached to the side casting surface of the part 22 to be machined. The orientation seat 8 is arranged on the oil way bottom plate 10, the orientation key 1 is arranged in a guide groove at the upper end of the orientation seat 8, and the first pressing plate 4 is fastened at the upper end of the orientation seat 8 and presses the orientation key 1 by four first screws 6 such as M5 multiplied by 12 hexagon socket head cap screws. The second screw 3, such as an M6 × 15 hexagon socket cap head cap screw, passes through the first waist hole on the first pressure plate 4 and is screwed into the threaded hole of the directional key 1, so that the directional key 1 can slide along the guide groove within a certain travel range. Two springs are respectively arranged in two spring holes at the tail part of the directional key 1, two first screws 6 are used for fastening a spring pressing plate 5 on a directional seat 8 and pre-compressing the springs, so that the springs are slightly stressed to push out the directional key 1. During clamping, the technical lugs of the part 22 to be machined, namely two casting fillets of the boss structure part, contact with the V-shaped surface at the front end of the orientation key 1 to align the center, and the orientation key 1 is stressed and compresses the spring, so that the part 22 to be machined is positioned in the tool.

Each station has two identical sets of hold-down devices. The guide rod 13 passes through the second waist hole of the insert rod 19, and the lower end of the guide rod is screwed into the threaded hole on the oil circuit base plate 10. The gasket, the compression spring and the adjusting ring are sequentially arranged on the guide rod 13. The degree of extension and contraction of the pressing spring is adjusted to fix the position of the adjusting ring 14 on the guide rod 13. The support rod 18 is fixed on the oil way bottom plate 10, and during clamping, a pair of insert rods 19 positioned at two ends of a valve core precast hole of a part 22 to be processed are respectively pushed into the valve core precast hole along the direction of a kidney-shaped hole. The corner oil cylinder 12 is arranged on the oil way bottom plate 10, and the oil cylinder 12 drives the second pressing plate 11 to tightly press the inserted rod 19. And a third screw 7, such as an M10X 110 hexagon socket cap head screw, penetrates through a hole on the spring pressing plate 5, is screwed into a through threaded hole on the orientation seat 8 and extends out of the other side surface of the orientation seat 8, after the inserted rod 19 is pressed by the oil cylinder, the third screw 7 is manually screwed, and the part 22 to be machined is completely pressed and fixed in the tool.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims

1. The utility model provides a processing hydrovalve's inserted bar formula frock in groups which characterized in that: comprises a positioning device; the positioning device comprises a positioning support block (9), a positioning seat (20) and an orientation seat (8); a clamping block is embedded in the side surface of the positioning seat (20); the surface of the orientation seat (8) is provided with a guide groove, and an orientation key (1) is arranged in the guide groove in a sliding manner; a spring is arranged between the directional key (1) and the directional seat (8); the spring pushes the orientation key (1) to the direction far away from the orientation seat (8); a first screw (6) is also inserted into the orientation seat (8); the front end of the first screw (6) stretches and props against the spring, and the clamping force of the directional key (1) is correspondingly adjusted.

2. The inserting rod type grouping tool for machining the hydraulic valve according to claim 1, wherein the inserting rod type grouping tool comprises: one end of the directional key (1) far away from the directional seat (8) is provided with a V-shaped surface.

3. The inserting rod type grouping tool for machining the hydraulic valve according to claim 1, wherein the inserting rod type grouping tool comprises: the surface of the orientation seat (8) is also provided with a first pressure plate (4); a first waist hole is formed in the first pressing plate (4) along the direction of the guide groove, and a second screw (3) is inserted into the first waist hole; the front end of the second screw (3) is embedded into the directional key (1); when the directional key (1) moves in a reciprocating mode, the second screw (3) moves inside the first waist hole synchronously.

4. The inserting rod type grouping tool for machining the hydraulic valve according to claim 1, wherein the inserting rod type grouping tool comprises: the device also comprises a pressing device; the pressing device comprises a supporting rod (18), an inserting rod (19) and a guide rod (13); the inserted bar (19) is arranged at the upper end of the supporting bar (18) in a sliding manner; the inserted bar (19) is provided with a second waist hole; the lower end of the guide rod (13) is fixed, and the upper end of the guide rod is embedded into the second waist hole in a matching manner; when the inserted rod (19) moves in a reciprocating mode, the guide rod (13) moves in a reciprocating mode relatively in the second waist hole, and the moving range of the inserted rod (19) is limited.

5. The inserting rod type grouping tool for machining the hydraulic valve according to claim 4, wherein the inserting rod type grouping tool comprises: the pressing device also comprises a corner oil cylinder (12); a second pressing plate (11) is connected to a cylinder rod of the corner oil cylinder (12); the second pressing plate (11) is in press fit with the inserted rod (19) under the driving of the corner oil cylinder (12).

6. The inserting rod type grouping tool for machining the hydraulic valve according to claim 4, wherein the inserting rod type grouping tool comprises: two groups of positioning devices and two groups of pressing devices are arranged.

7. The inserting rod type grouping tool for machining the hydraulic valve according to claim 4, wherein the inserting rod type grouping tool comprises: the compression device further comprises a third screw (7); the third screw (7) is inserted on the orientation seat (8) in a penetrating manner; the front end of the third screw (7) moves telescopically along the length direction of the guide groove.