Tool for boring inner hole of chain plate

Abstract

The utility model discloses a tool for boring an inner hole of a chain plate. The tool comprises two clamping units which are symmetrically arranged, the clamping unit comprises a supporting column, and the supporting column is arranged on the numerical control displacement platform. The number of the first pushing blocks is two, and the first pushing blocks are connected to the supporting columns in a sliding mode; the air cylinder is arranged on the numerical control displacement platform; the pressing rod is arranged on a sliding rod of the air cylinder; the first push block is provided with a combined sliding groove connected with the sliding rod in a sliding mode. The combined sliding chute comprises an inclined sliding chute which is obliquely arranged and a vertical sliding chute which is vertically arranged; the vertical sliding groove is communicated with one end of the inclined sliding groove. The chain plate only needs to be placed in an approximate position, and taking and placing are easy; positioning and clamping work can be completed in a full-automatic mode; the manual operation difficulty and the working intensity are reduced, the machining efficiency is improved, the boring machining precision is improved, and machining errors are eliminated; and the device can be compatible with chain plates with different sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of chain plate processing, in particular to a tool for boring inner holes of chain plates. Background Art

[0002] As an important part of the hoist, the chain's strength and stability determine the hoist's working efficiency and service life. As the main component of the chain, the chain plate often uses an interference fit to fix the sleeve / pin shaft to the inner hole of the chain plate. Therefore, the accuracy of the inner hole of the chain plate plays a vital role in the connection strength of the chain plate, which determines the structural strength and stability of the chain. There are many processing methods for chain plates, such as casting / forging, stamping, etc., but these processing methods have the technical problem of low processing accuracy. Therefore, after the initial processing of the chain plate is completed, the inner hole will be bored to improve the accuracy and surface finish of the hole and ensure the accurate position of the hole.

[0003] The Chinese patent document with publication number CN216298658U discloses a tool for boring a chain plate, comprising a base, a first positioning block, a second positioning block, a third positioning block and a mounting frame, wherein the base is provided with a first slide slot, a second slide slot and a third slide slot, the second slide slot is located in the middle position of the base, the first slide slot is located at the front and rear sides of the second slide slot, the front and rear sides of the base are provided with a reinforcing plate, and the third slide slot is arranged on the reinforcing plate. The utility model improves the stability of the base installation by adding a first mounting hole in the middle position of the base and then fixing it with a fixing bolt, limits the top of the workpiece by the third limiting block, thereby improving the fixing effect of the workpiece, and conveniently adjusts the position of the third positioning block by the fourth slide slot, so that the third positioning block is adjusted to the middle position of the workpiece, so that the fixing force is evenly distributed on the workpiece, thereby improving the fixing effect, thereby improving the processing accuracy.

[0004] In current technology, the position of the chain plate, that is, the relative position of the inner hole of the chain plate and the boring tool, is accurately controlled by a CNC displacement platform to perform repeated rapid processing. However, the clamping of the chain plate still needs to be done manually. In the above-mentioned patent scheme, the chain plate is positioned step by step through multiple positioning blocks before the boring operation can begin. After the operation is completed, the process of removing the chain plate will still face almost the same workload. In addition, the clamping position of the chain plate also plays a decisive role in the boring accuracy. The above-mentioned patent scheme also needs to accurately adjust the position while clamping the chain plate. These all affect the processing accuracy and efficiency of the inner hole of the chain plate. Utility Model Content

[0005] In order to overcome the technical problems of complicated steps and low working efficiency in the fixing and clamping of chain plates in the boring process of chain plates in the prior art, one purpose of the utility model is to provide a tool for boring the inner holes of chain plates, by arranging a plurality of push blocks for positioning around the chain plates on a CNC displacement platform, and arranging a pressure rod for pressing the chain plates at the upper end of the chain plates, and driving the push blocks in turn by cylinders to adjust the positions of the chain plates, and making the pressure rods fix the positions of the chain plates, so as to realize fast and accurate clamping of the chain plates.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a tool for boring the inner hole of a chain plate, comprising two symmetrically arranged clamping units; the clamping unit comprises a pillar, and the pillar is arranged on a CNC displacement platform; a first push block, the first push block has two, and is slidably connected to the pillar respectively; a cylinder, the cylinder is arranged on the CNC displacement platform; a pressure rod, the pressure rod is arranged on the sliding rod of the cylinder; wherein, the first push block is provided with a combined slide groove slidably connected to the sliding rod; the combined slide groove comprises an inclined inclined slide groove and a vertically arranged vertical slide groove; the vertical slide groove is connected to one end of the inclined slide groove.

[0007] The operator only needs to place the chain plate to the approximate position without adjusting the chain plate. During the movement of the sliding rod, the inclined slide groove is first driven to slide and then the first push block pushes the chain plate to the clamping position. Subsequently, the sliding rod slides from the inclined slide groove into the vertical slide groove, and the first push block no longer slides. The pressing block presses the chain plate under the drive of the sliding rod. The first push block and the pressing block move in steps to prevent wear on the first push block and the pressing block when the two move synchronously. The entire clamping process simplifies the steps and detailed operation procedures, which will improve the work efficiency of the boring processing of the chain plate.

[0008] Preferably, the clamping unit includes a support rod arranged on the pillar, one end of the support rod is rotatably connected to the pillar, and the other end is rotatably connected to the middle part of the pressure rod; the sliding rod is rotatably connected to one end of the pressure rod away from the chain plate; the vertical slide groove is connected to the upper end of the inclined slide groove.

[0009] After the pressure rod is opened, there is no obstruction above the chain plate, which makes it easy to take and place the chain plate.

[0010] Optionally, the first push block slides along the length / width direction of the chain plate; the clamping unit includes a second push block slidably connected to the pillar; the second push block is located between two adjacent first push blocks; and the second push block is transmission-connected to the first push block.

[0011] Specifically, an arc surface is arranged at one end of the first push block facing the chain plate; and the sliding directions of the first push block and the second push block are the same.

[0012] Specifically, a linkage rod is arranged at one end of the second push block facing the first push block; and a linkage groove for driving the linkage rod to slide synchronously is arranged on the first push block.

[0013] The end of the chain plate is arc-shaped, and the first push block and the second push block accurately push the chain plate to the clamping position and restrict its movement in the horizontal plane. The entire process is fully automatically operated by the cylinder, reducing manual workload.

[0014] Furthermore, the clamping unit includes two symmetrically arranged adjusting columns; the two first push blocks are respectively slidably connected to the corresponding upper ends of the adjusting columns, and the sliding direction of the first push blocks is perpendicular to the sliding direction of the adjusting columns.

[0015] The first push block can clamp chain plates of different sizes, thereby increasing its applicability.

[0016] Specifically, the clamping unit includes a central slider longitudinally slidably connected to the pillar and a screw rod rotatably connected to the pillar; the screw rod is transmission-connected to the central slider; a connecting rod is arranged between the central slider and the adjacent adjusting column; the two ends of the connecting rod are rotatably connected to the central slider and the adjusting column respectively.

[0017] The two first push blocks move in a centering manner to push the chain plate to a boring working position, thereby improving the positioning accuracy of the chain plate and further improving the processing accuracy of the inner hole.

[0018] Specifically, a second guide rod is provided on the adjusting column; a positioning tube slidably connected to the second guide rod is provided on the first pushing block; and a positioning groove slidably connected to the first pushing block is provided on the upper end of the adjusting column.

[0019] Furthermore, two adjustment plates are symmetrically arranged on the upper end of the numerically controlled displacement platform; and the two clamping units are respectively arranged on the corresponding adjustment plates.

[0020] The clamping unit increases the adaptability to chain plates of different sizes and models.

[0021] Optionally, the sliding direction of the first push block forms an angle with the length / width direction of the chain plate; the sliding direction of the first push block points to the center position of the chain plate; and a cross bar slidably connected to the combined slide groove is obliquely arranged on the sliding rod.

[0022] Although the number of parts can be reduced, the processing difficulty of a single part is increased.

[0023] Compared with the prior art, the beneficial effects of the utility model are: the operator only needs to place the chain plate to the approximate position, without strict position adjustment, and it is simple to take and place; the cylinder movement first pushes the chain plate to the clamping position, and then presses it, and then performs the boring operation, and the positioning and clamping work is completed fully automatically; the manual operation difficulty and work intensity are reduced, and the processing efficiency is improved. At the same time, the clamping position of the chain plate is unique and accurate, which helps to improve the boring processing accuracy and eliminate processing errors; in addition, it is also compatible with chain plates of different sizes and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is an exploded schematic diagram of the clamping unit of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the first push block and the second push block of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the adjusting column and the central sliding block of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the chain plate picking and placing state of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the clamped chain plate state of the utility model;

[0030] Figure 7 It is a structural schematic diagram of the boring processing of the utility model.

[0031] In the figure: 1, CNC displacement platform; 2, adjustment plate; 31, pillar; 311, first guide rod; 312, 32, cylinder; 33, cross bar; 41, first push block; 411, inclined slide; 412, vertical slide; 413, linkage groove; 414, arc surface; 415, positioning tube; 42, second push block; 421, linkage rod; 422, horizontal slider; 51, pressure rod; 511, middle hole; 512, end hole; 52, support rod; 61, adjustment column; 611, positioning groove; 612, second guide rod; 613, guide hole; 62, connecting rod; 63, screw rod; 64, center slider; 7, chain plate. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0033] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-Figure 7 A tool for boring the inner hole of a chain plate includes a CNC displacement platform 1, two symmetrically arranged adjustment plates 2 slidably connected to the upper end of the CNC displacement platform 1 along the front-back direction; a plurality of pairs of clamping units are arranged on the CNC displacement platform 1; two of the same pair of clamping units are respectively installed on the two adjustment plates 2.

[0037] The clamping unit includes a pillar 31, two symmetrically arranged adjustment pillars 61 slidably connected to the pillar 31, two first push blocks 41 respectively slidably connected to the upper ends of the corresponding adjustment pillars 61, and a second push block 42 slidably connected to the upper end of the pillar 31; the second push block 42 is located between the two first push blocks 41; the first push block 41 and the second push block 42 slide along the front-back direction; the first push block 41 is provided with an arc surface 414 at one end facing the chain plate 7; the two arc surfaces 414 in the clamping unit are opposite; the adjustment pillar 61 slides along the left-right direction;

[0038] The upper end of the pillar 31 is flush with the upper end of the adjusting column 61; the chain plate 7 is placed on the upper end of the pillar 31 to facilitate the discharge of cutting chips from the boring hole; two first guide rods 311 are provided at one end of the pillar 31 facing the adjusting column 61; two guide holes 613 are provided on the adjusting column 61, which are respectively slidably connected to the first guide rods 311; a second guide rod 612 is provided on the adjusting column 61; a positioning tube 415 is provided on the first push block 41, which is slidably connected to the second guide rod 612; a positioning groove 611 is provided on the upper end of the adjusting column 61; a horizontal slider 422 is provided on the lower end of the second push block 42, which is slidably connected to the pillar 31.

[0039] The clamping unit also includes a cylinder 32 arranged on the pillar 31, a pressure rod 51 arranged on the sliding rod of the cylinder 32, and a support rod 52 arranged between the pressure rod 51 and the pillar 31; a cross rod 33 is arranged at the upper end of the sliding rod; one end of the support rod 52 is rotatably connected to the pillar 31, and the other end is rotatably connected to the middle part of the pressure rod 51; the cross rod 33 is rotatably connected to the end of the pressure rod 51 away from the chain plate 7; a middle hole 511 rotatably connected to the support rod 52 is arranged in the middle of the pressure rod 51; an end hole 512 rotatably connected to the cross rod 33 is arranged at the end of the pressure rod 51 away from the chain plate 7.

[0040] The first push block 41 is provided with a combined slide groove which is slidably connected with the cross bar 33; the combined slide groove includes an inclined inclined slide groove 411 and a vertically arranged vertical slide groove 412; the vertical slide groove 412 is connected with the upper end of the inclined slide groove 411; the second push block 42 is provided with a linkage rod 421 at one end facing the first push block 41; the first push block 41 is provided with a linkage groove 413 for driving the linkage rod 421 to slide synchronously.

[0041] The clamping unit includes a central slider 64 longitudinally slidably connected to the pillar 31 and a screw rod 63 rotatably connected to the pillar 31; the screw rod 63 is transmission-connected to the central slider 64; two parallel connecting rods 62 are arranged between the central slider 64 and the adjacent adjusting column 61; the two ends of the connecting rod 62 are rotatably connected to the central slider 64 and the adjusting column 61 respectively.

[0042] The clamping process: The operator places the chain plate 7 on the upper ends of two opposing pillars 31, and the cylinder 32 drives the cross bar 33 to slide upward. The cross bar 33 slides in the inclined slide groove 411 to drive the first push block 41 to slide toward the chain plate 7. The arc surface 414 pushes the chain plate 7 to the central position in the left and right directions, and the first push block 41 abuts against both sides of the chain plate 7. Then, the first push block 41 continues to slide, which will cause the linkage groove 413 to drive the linkage rod 421 to slide, and then the second push block 42 moves toward the chain plate 7, pushing the chain plate 7 to the central position in the front-back direction, that is, the chain plate 7 reaches the clamping position.

[0043] During this process, the sliding of the cross bar 33 drives the support rod 52 to rotate, thereby causing the pressure plate 51 to rotate toward the chain plate 7, and the cross bar 33 slides from the inclined slide groove 411 into the vertical slide groove 412. The first push block 41 and the second push block 42 no longer slide. The continued sliding of the cross bar 33 will cause the pressure plate 51 to press the chain plate 7, thereby completing the clamping of the chain plate 7.

[0044] After the boring is completed, after the cross bar 33 moves to the original position, the chain plate 7 is not in close contact with the first push block 41 and the second push block 42, but has a certain distance therebetween, so as to facilitate the taking and placing of the chain plate 7.

[0045] In other embodiments, it may also be that: the first push block 41 is only set at the upper ends of the two adjusting columns 61; the second push block 42 is not set; the sliding direction of the first push block 41 has an angle with the length / width direction of the chain plate 7; the sliding direction of the first push block 41 points to the center of the clamping position; the cross bar 33 is composed of a horizontal section arranged along the left and right directions and two inclined sections respectively arranged at both ends of the horizontal section; the inclined section has an angle with the left and right directions, the horizontal section is rotatably connected to the end hole 512, and the inclined section is slidably connected to the combined slide groove.

[0046] Since both ends of the chain plate 7 are often arc-shaped, during the longitudinal sliding of the cross bar 33, the two first push blocks 41 will push the arc-shaped position of the chain plate 7 toward the center of the clamping position, thereby making the chain plate 7 reach the clamping position. Although the processing difficulty of the cross bar 33 is increased, the number of parts is reduced.

[0047] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A tool for boring inner holes of chain plates, characterized in that: It comprises two symmetrically arranged clamping units; the clamping unit comprises a pillar, which is arranged on a CNC displacement platform; a first push block, which has two first push blocks and is slidably connected to the pillar respectively; a cylinder, which is arranged on the CNC displacement platform; a pressure rod, which is arranged on the sliding rod of the cylinder; wherein the first push block is provided with a combined slide groove slidably connected to the sliding rod; the combined slide groove comprises an inclined inclined slide groove and a vertically arranged vertical slide groove; the vertical slide groove is connected to one end of the inclined slide groove.

2. The tooling according to claim 1, characterized in that: The clamping unit includes a support rod arranged on the pillar, one end of the support rod is rotatably connected to the pillar, and the other end is rotatably connected to the middle part of the pressure rod; the sliding rod is rotatably connected to one end of the pressure rod away from the chain plate; the vertical slide groove is connected to the upper end of the inclined slide groove.

3. The tooling according to claim 1 or 2, characterized in that: The first push block slides along the length / width direction of the chain plate; the clamping unit includes a second push block slidably connected to the pillar; the second push block is located between two adjacent first push blocks; the second push block is transmission-connected to the first push block.

4. The tooling as claimed in claim 3, characterized in that: An end of the first push block facing the chain plate is provided with an arc surface; and the sliding directions of the first push block and the second push block are the same.

5. The tooling as claimed in claim 3, characterized in that: A linkage rod is arranged at one end of the second push block facing the first push block; and a linkage groove for driving the linkage rod to slide synchronously is arranged on the first push block.

6. The tooling according to claim 1 or 2, characterized in that: The clamping unit includes two symmetrically arranged adjusting columns; the two first push blocks are respectively slidably connected to the upper ends of the corresponding adjusting columns, and the sliding direction of the first push blocks is perpendicular to the sliding direction of the adjusting columns.

7. The tooling according to claim 6, characterized in that: The clamping unit includes a central slider longitudinally slidably connected to the pillar and a screw rod rotatably connected to the pillar; the screw rod is transmission-connected to the central slider; a connecting rod is arranged between the central slider and the adjacent adjusting column; the two ends of the connecting rod are rotatably connected to the central slider and the adjusting column respectively.

8. The tooling as claimed in claim 6, characterized in that: The adjusting column is provided with a second guide rod; the first pushing block is provided with a positioning tube slidably connected to the second guide rod; the upper end of the adjusting column is provided with a positioning groove slidably connected to the first pushing block.

9. The tooling according to claim 1 or 2, characterized in that: Two adjustment plates are symmetrically arranged on the upper end of the numerical control displacement platform; and the two clamping units are respectively arranged on the corresponding adjustment plates.

10. The tooling according to claim 1 or 2, characterized in that: The sliding direction of the first push block forms an angle with the length / width direction of the chain plate; the sliding direction of the first push block points to the center position of the chain plate; a cross bar slidably connected to the combined sliding groove is obliquely arranged on the sliding rod.

Images