Press machine dual decoder mounting structure

Abstract

The utility model discloses a press double decoder mounting structure, its characterized in that: including grating ruler and the installation long groove of being located grating ruler both ends, the grating ruler is equipped with the adjusting rod of horizontal wear installation long groove and with its length direction identity on the sliding, the adjusting rod includes sliding rod and the rotating link of rotating with sliding rod, be equipped with the through -hole of wear installation bolt for sliding rod, the rotating link is with grating ruler screw connection, the utility model discloses the combination of adjusting rod sliding and screw drive, the lateral displacement of grating ruler is converted for the rotation of rotating link, and the gap error of installation long groove is automatically compensated, and the relative position of installation bolt is locked in long groove through screw after installation, thereby realizes the effect of anti -seismic and prevents the deviation.

Description

Technical Field

[0001] This utility model relates to the field of decoder technology, and in particular to a mounting structure for a dual decoder for a press. Background Technology

[0002] Optical linear encoders are a type of dual decoder, widely used as high-precision position feedback devices in heavy equipment such as presses for controlling the motion trajectory of sliders. The conventional installation method involves fixing the grating ruler to the stationary part of the press guide rail (such as the machine frame), while the reading head is mounted on the moving parts such as the slider, achieving displacement measurement by real-time reading of the grating ruler's markings. However, this installation structure has the following drawbacks and shortcomings in practical applications:

[0003] Precision attenuation problem in long slot redundancy design

[0004] 1. Because the length of the grating ruler needs to cover the entire stroke of the slider, transverse slots need to be set at both ends of the grating ruler during installation, and it is connected to the machine body by bolts to achieve initial position adjustment. However, the periodic impact load generated during the long-term operation of the press can easily cause the bolts to slip in the slots, destroying the initial alignment relationship between the grating ruler and the reading head, and causing the measurement reference to drift;

[0005] 2. The existing installation structure relies on standard bolts to fix the grating ruler. Although spring washers or thread-locking adhesive are used to prevent loosening, the preload is still prone to decay under high-frequency vibration. Especially in vertical installation conditions, the bolts are subjected to the combined effects of shear force and vibration, significantly increasing the probability of loosening. Utility Model Content

[0006] This utility model addresses the shortcomings of existing technologies by providing a dual decoder mounting structure for a press. Through the coordinated design of the adjusting rod and the bidirectional locking bolt, it solves the problems of micro-slippage of the grating ruler and loosening of the bolts.

[0007] To solve the above-mentioned technical problems, the present invention is solved by the following technical solution: a mounting structure for a dual decoder of a press, characterized in that: it includes a grating ruler and mounting slots at both ends of the grating ruler;

[0008] The grating ruler is provided with an adjusting rod that slides through a horizontally inserted mounting slot and is aligned with its length direction.

[0009] The adjusting rod includes a sliding rod and a rotating rod rotatably connected to the sliding rod. The sliding rod has a through hole for mounting bolts to pass through, and the rotating rod is threadedly connected to the grating ruler.

[0010] In the above scheme, preferably, the grating ruler has a sliding hole on one side that cooperates with the sliding rod, and a threaded hole on the other side that cooperates with the rotating rod.

[0011] In the above scheme, preferably, one end of the rotating rod is rotatably connected to the sliding rod, and the other end is provided with an adjustment part for rotation adjustment.

[0012] In the above scheme, preferably, the sliding rod is provided with a shaft diameter and a snap-fit ​​plate, and the rotating rod is provided with a first slot and a second slot for the shaft diameter and the snap-fit ​​plate to snap into each other.

[0013] The snap-fit ​​plate is rotatably connected to the second snap-fit ​​slot.

[0014] In the above scheme, preferably, the mounting bolt includes a first screw that mates with the through hole and is threadedly connected to the press body, and a mounting part, wherein the mounting part has a toothed surface facing the grating ruler.

[0015] In the above scheme, preferably, a second screw with the opposite thread to the first screw is fixed on the side of the mounting part away from the grating ruler, and a locking block that is threaded with the second screw is slidably provided on the grating ruler.

[0016] In the above scheme, preferably, the locking block is provided with a locking rod, and the grating ruler is provided with a positioning plate that slides with the locking rod;

[0017] A locking spring is provided between the locking block and the locking rod.

[0018] In the above scheme, preferably, the end of the second screw is provided with an internal hexagonal hole for driving the mounting bolt to rotate.

[0019] In the above scheme, preferably, a drive plate is provided after the locking rod slides through the positioning plate.

[0020] In the above scheme, preferably, the sliding hole and the threaded hole are coaxially arranged.

[0021] The beneficial effects of this utility model are: by combining the sliding of the adjusting rod with the threaded transmission, the lateral displacement of the grating ruler is converted into the rotation of the rotating rod, which automatically compensates for the gap error of the mounting slot. After installation, the relative position of the mounting bolt in the long slot is locked by the thread, thereby achieving the anti-vibration and anti-displacement effect of the grating ruler relative to the mounting bolt.

[0022] In addition, the reverse thread design of the mounting bolt applies a clamping force to the grating ruler when tightened, and the locking block uses the reverse thread design to axially position the mounting bolt, preventing the mounting bolt from loosening when the press vibrates, thus improving the stability of the grating ruler installation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This is an exploded perspective view of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0026] Figure 4 This utility model Figure 3 Sectional view at point AA.

[0027] Figure 5 This is a three-dimensional structural diagram of the rotating rod of this utility model.

[0028] Figure 6 This is a three-dimensional structural diagram of the mounting bolt of this utility model. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-6 .

[0030] A dual decoder mounting structure for a press is disclosed. The dual decoder is an optical linear encoder, which includes a grating ruler 1 and a reading head that cooperates with the grating ruler 1. The grating ruler 1 is vertically fixed on the press frame and parallel to the press guide rail. The reading head is slidably engaged with the grating ruler 1 and fixed on the press slider.

[0031] After the reading head is fixed on the slider, in order to achieve a sliding fit between the grating ruler 1 and the reading head, transverse mounting slots 101 are provided at both ends of the grating ruler 1, such as... Figure 1 As shown, the mounting bolt 3 is fixed to the press frame after passing through the mounting slot 101, thereby fixing the grating ruler 1 to the frame. At the same time, before the mounting bolt 3 is tightened, the grating ruler 1 and the reading head can be accurately matched by adjusting the left and right displacement of the mounting slot 101 relative to the mounting bolt 3.

[0032] The mounting bolt 3 includes a first screw 301 threadedly connected to the press body and a mounting part 302. The first screw 301 passes through a long slot 101 and is fixed to the press. The mounting part 302 abuts and presses against the outer surface of the grating ruler 1, thereby fixing the grating ruler 1 to the press body. The mounting part 302 has a toothed surface 303 on the side facing the outer surface of the grating ruler 1. The toothed surface 303 is a circular toothed surface, such as... Figure 6 As shown, after the tooth surface 303 comes into contact with the outer surface of the grating ruler 1, the tooth shape engages with the surface to achieve the fastening of the grating ruler 1 relative to the mounting bolt 3.

[0033] The grating ruler 1 is provided with an adjusting rod 2 that is slidably mounted on a transversely extending mounting slot 101 and is aligned with the length direction of the slot. Figure 2 and Figure 4As shown, the adjusting rod 2 includes a sliding rod 201 and a rotating rod 202 rotatably connected to the sliding rod 201. The sliding rod 201 is provided with a through hole 203 for the mounting bolt 3 to pass through. The grating ruler 1 is provided with a sliding hole 102 on one side of the mounting groove 101 that cooperates with the sliding rod 201, and a threaded hole 103 on the other side that is threadedly engaged with the rotating rod 202. After one end of the sliding rod 201 slides through the sliding hole 102, it is rotatably connected to the rotating rod 202 in the mounting groove 101. After the mounting bolt 3 is placed in the mounting groove 101, its end passes through the through hole 203 and is threadedly connected to the press body.

[0034] The sliding rod 201 has a shaft diameter 205 and a locking plate 206 on one end face facing the rotating rod 202. The locking plate 206 is a circular plate with a diameter larger than that of the shaft journal 205. The rotating rod 202 has a first locking groove 207 and a second locking groove 208 on one end facing the locking plate 206 for engaging the shaft diameter 205 and the locking plate 206. The locking plate 206 is rotatably connected to the second locking groove 208. After the locking plate 206 and the shaft journal 205 are engaged through the second locking groove 208 and the first locking groove 207 respectively, the sliding rod 201 and the rotating rod 202 are coaxially arranged, and the locking plate 206 can rotate relative to the second locking groove 208.

[0035] The sliding hole 102 and the threaded hole 103 are coaxially arranged. One end of the rotating rod 202 is rotatably connected to the sliding rod 201, and the other end is provided with an adjustment part 204 for rotation adjustment. The adjustment part 204 is a hexagonal head for rotating an internal hex wrench. The rotating rod 202 can be driven to rotate relative to the threaded hole 103 through the adjustment part 204, so as to realize the lateral displacement adjustment of the rotating rod 202 relative to the mounting slot 101.

[0036] The diameter of the sliding rod 201 is smaller than the diameter of the threaded hole 103. During installation, the sliding rod 201 and the rotating rod 202 are pre-installed as an adjusting rod 2 via the journal 205 and the snap-fit ​​plate 206. Then, the sliding rod 201 is moved along... Figure 4 After passing through the threaded hole 103 from left to right, the rod passes through the mounting groove 101 and engages with the sliding hole 102. At this time, the through hole 203 is placed in the mounting groove 101, and the rotating rod 202 is threadedly connected to the threaded hole 103. The axis of the through hole 203 is set to be parallel to the through direction of the mounting groove 101. Then, the mounting thread 3 is inserted into the through hole 203 and threadedly connected to the press body. Then, the adjusting part 204 can be turned to realize the lateral displacement adjustment of the grating ruler 1 relative to the mounting bolt 3.

[0037] The mounting part 302 is fixed with a second screw 304 on the side away from the grating ruler 1, which has the opposite thread to the first screw 301. A locking block 305 that is threadedly engaged with the second screw 304 is slidably provided on the grating ruler 1. The end face of the locking block 305 facing the second screw 304 is an arc-shaped surface, on which a thread that meshes with the second screw 304 is provided. A locking rod 306 is provided on the end face away from the second screw 304. When the first screw 301 is tightened with the press body, the locking block 305 meshes with the second screw 304. At this time, since the threads of the first screw 301 and the second screw 304 rotate in opposite directions, the mounting bolt 3 can be effectively prevented from loosening when the press vibrates.

[0038] The grating ruler 1 is provided with a positioning plate 307 that slides with the locking rod 306; the locking rod 306 is a hexagonal rod, and the positioning plate 307 is provided with a hexagonal hole for the hexagonal rod to slide through, thereby realizing the sliding engagement of the locking block 305. A locking spring 308 is provided between the locking block 305 and the locking rod 306, so that the locking block 305 is always in a threaded engagement state with the second screw 304 after engaging with the second screw 304; after the locking rod 306 slides through the positioning plate 307, a drive plate 310 is provided for the operator to pull. Through the lateral movement of the drive plate 310, the locking block 305 is elastically disengaged from the second screw 304.

[0039] The end of the second screw 304 is provided with an internal hexagonal hole 309 for driving the mounting bolt 3 to rotate; the mounting bolt 3 is fastened relative to the press body through the internal hexagonal hole 309.

[0040] The method of using the above-described press dual decoder installation structure is as follows: First, the sliding rod 201 and the rotating rod 202 are rotated and assembled to form a straight rod-shaped adjusting rod 2. Then, the sliding rod 201 is inserted laterally into the sliding hole 102. At the same time, the rotating rod 202 is threadedly engaged with the threaded hole 103. The through hole 203 is adjusted to be in a state perpendicular to the outer surface of the press body or the grating ruler 1. Then, the mounting bolt 3 is inserted into the mounting slot 101 and passes through the through hole 203. Its end is threadedly engaged with the press body.

[0041] Adjust the lateral position of the grating ruler 1 relative to the mounting bolt 3 by rotating the rod 202. After adjustment, the operator pulls the drive plate 310 to disengage the locking block 305 from the second screw 304. Then, the mounting bolt 3 is tightened through the internal hexagonal hole 309 to fix the grating ruler 1 to the press body. After installation and adjustment, the locking block 305 is reset by the locking spring 308, so that it engages with the thread of the second screw 304. The anti-loosening is achieved by the reverse thread.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mounting structure for a dual decoder of a press, characterized in that: It includes a grating ruler (1) and mounting slots (101) at both ends of the grating ruler (1). The grating ruler (1) is provided with an adjusting rod (2) that has a transversely inserted mounting groove (101) and is aligned with its length direction. The adjusting rod (2) includes a sliding rod (201) and a rotating rod (202) rotatably connected to the sliding rod (201). The sliding rod (201) is provided with a through hole (203) for the mounting bolt (3) to pass through. The rotating rod (202) is threadedly connected to the grating ruler (1).

2. The mounting structure for a dual decoder of a press according to claim 1, characterized in that: The grating ruler (1) has a sliding hole (102) on one side that cooperates with the sliding rod (201), and a threaded hole (103) on the other side that is threadedly engaged with the rotating rod (202).

3. The mounting structure for a dual decoder of a press according to claim 1, characterized in that: One end of the rotating rod (202) is rotatably connected to the sliding rod (201), and the other end is provided with an adjustment part (204) for rotation adjustment.

4. The mounting structure for a dual decoder of a press according to claim 1, characterized in that: The sliding rod (201) is provided with a shaft diameter (205) and a snap-fit ​​plate (206), and the rotating rod (202) is provided with a first snap-fit ​​groove (207) and a second snap-fit ​​groove (208) for the shaft diameter (205) and the snap-fit ​​plate (206) to snap-fit ​​together. The snap-fit ​​plate (206) is rotatably connected to the second snap-fit ​​slot (208).

5. The mounting structure for a dual decoder of a press according to claim 1, characterized in that: The mounting bolt (3) includes a first screw (301) that mates with the through hole (203) and is threadedly connected to the press body, and a mounting part (302), wherein the mounting part (302) has a toothed surface (303) facing the grating ruler (1).

6. The mounting structure for a dual decoder of a press according to claim 5, characterized in that: The mounting part (302) is fixed with a second screw (304) on the side away from the grating ruler (1) with the opposite thread to the first screw (301), and a locking block (305) that is threadedly engaged with the second screw (304) is slidably provided on the grating ruler (1).

7. The mounting structure for a dual decoder of a press according to claim 6, characterized in that: The locking block (305) is provided with a locking rod (306), and the grating ruler (1) is provided with a positioning plate (307) that slides with the locking rod (306). A locking spring (308) is provided between the locking block (305) and the locking rod (306).

8. The mounting structure for a dual decoder of a press according to claim 6, characterized in that: The end of the second screw (304) is provided with an internal hexagonal hole (309) for driving the mounting bolt (3) to rotate.

9. The mounting structure for a dual decoder of a press according to claim 7, characterized in that: The locking rod (306) slides through the positioning plate (307) and is then provided with a drive plate (310).

10. The mounting structure for a dual decoder of a press according to claim 2, characterized in that: The sliding hole (102) and the threaded hole (103) are coaxially arranged.

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