Cylindrical piece holding and clamping tool

Abstract

The utility model discloses a cylindrical piece holding and clamping tool, which belongs to the technical field of workpiece clamping, a plurality of groups of round holes are formed in the side surface of a cylindrical piece, and the holding and clamping tool comprises a bracket, paired clamping blocks and a plurality of cambered-surface-shaped fixing plates, a lead screw and a guide shaft which are arranged in parallel are mounted on the bracket; the lead screw and the support are rotationally connected and installed, one sides of the two clamping blocks are in threaded sleeving with the two ends of the lead screw through nut bases respectively, the other sides of the two clamping blocks are in sliding sleeving with the guide shafts through guide sleeves respectively, and the screwing directions of threads of the two nut bases are opposite. The upper end of the fixing plate is provided with an outward boss, and the inner side of the fixing plate is provided with insertion columns capable of being inserted into each group of round holes in a positioning mode. Clamping notches capable of clamping the outer side of the fixing plate are formed in the opposite inner sides of the paired clamping blocks. The overall structure is simple, operation is convenient and fast, the cylindrical part can be accurately and reliably clamped and positioned, the clamping blocks are prevented from directly clamping the outer side of the cylindrical part through the fixing plates, and the cylindrical part is effectively prevented from being crushed and scratched.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece clamping, and specifically relates to a clamping tool for cylindrical parts. Background Art

[0002] Cylindrical parts (round tubes or cylinders) are common geometric shape parts, which are composed of two circular (ring-shaped) bases of equal size and parallel to each other and a curved surface connecting the two bases. This structure makes cylindrical parts have high strength and stability. Due to their unique characteristics, cylindrical parts are widely used in many fields such as industry, construction, and machinery.

[0003] However, when machining other features or assembling other parts on cylindrical parts, it is necessary to reliably clamp and position the cylindrical parts to ensure the accuracy of machining or assembly. However, due to the unique structural characteristics of cylindrical parts, traditional clamping tools cannot clamp them reliably and accurately during clamping and positioning, affecting the machining or assembly accuracy; in addition, the traditional clamping tool clamps the side brackets of cylindrical parts, which will cause a certain degree of indentation. For precision parts, it will greatly affect the product quality and even cause the parts to be scrapped.

[0004] Such as Figure 3 shown, it is a schematic structural diagram of a drain pipe foot. Its overall structure is cylindrical, and multiple groups of drain holes are opened on its side wall. In the assembly process, it is necessary to assemble gaskets and sealing rings on its upper part, and the assembly of gaskets and sealing rings is realized through automatic control of a manipulator; traditional clamping tools cannot accurately clamp and position the drain pipe foot, easily causing the situation that the parts assembled by the manipulator are not in place; and it will cause a certain degree of indentation and scratching on the side of the drain pipe foot. Content of the Utility Model

[0005] In order to solve the problem that traditional tools cannot clamp cylindrical parts reliably and accurately, affecting the machining or assembly accuracy, and will cause a certain degree of indentation on cylindrical parts, the utility model provides a clamping tool for cylindrical parts.

[0006] The utility model is realized through the following technical solutions:

[0007] A clamping tool for cylindrical parts, multiple groups of circular holes are opened on the side of the cylindrical part. The clamping tool includes a bracket, a pair of clamping blocks, and several arc-shaped fixing plates; a parallel screw rod and a guide shaft are installed on the bracket; the screw rod is rotationally connected to the bracket. One side of the two clamping blocks is respectively threadedly sleeved with the two ends of the screw rod through a nut seat, and the other side of the two clamping blocks is respectively slidably sleeved with the guide shaft through a guide sleeve. The thread rotation directions of the two nut seats are opposite; the upper end of the fixing plate is provided with an outward convex platform, and the inner side of the fixing plate is provided with a plug post that can be inserted and positioned with each group of circular holes; the opposite inner sides of the pair of clamping blocks are provided with clamping notches that can clamp the outer side of the fixing plate.

[0008] A further improvement of the present utility model is that both ends of the lead screw are respectively rotatably connected and installed to the bracket through bearings.

[0009] A further improvement of the present utility model is that a hand wheel is connected and installed at one end of the lead screw.

[0010] A further improvement of the present utility model is that both ends of the guide shaft are fixedly connected and installed to the bracket.

[0011] A further improvement of the present utility model is that chamfers are provided on both sides of the clamping notch.

[0012] A further improvement of the present utility model is that the guide sleeve is a linear bearing.

[0013] A further improvement of the present utility model is that the bracket includes two side plates arranged opposite to each other, and two connecting plates arranged opposite to each other are connected and installed between the two side plates; the lead screw and the guide shaft are installed on the two connecting plates.

[0014] A further improvement of the present utility model is that an installation plate that is turned outwards is provided at the bottom of the side plate, and a plurality of installation holes are opened on the installation plate.

[0015] A further improvement of the present utility model is that a rib plate is connected between the side plate and the installation plate.

[0016] A further improvement of the present utility model is that a plurality of weight-reducing holes are opened on the side plate.

[0017] As can be seen from the above technical solutions, the beneficial effects of the present utility model are as follows:

[0018] When clamping a cylindrical part, the insertion posts on each fixing plate are respectively inserted into each group of round holes, the inner side surface of the fixing plate is completely attached to the side surface of the cylindrical part, so that there is a certain gap between adjacent fixing plates, the outer side surfaces of the fixing plates are on the same circular surface, and the size of the outer side surface of the fixing plate is the same as the size of the two clamping notches; the assembled cylindrical part with the fixing plate is placed into the opposite clamping notches, the lead screw is rotated to operate, so that the two clamping blocks move closer to each other, and the convex platform on the fixing plate is supported on the upper edge of the clamping notch, and continue to move the two clamping blocks closer to each other until the clamping notch clamps and presses the fixing plate. Subsequent processing or assembly of the cylindrical part can be realized. The overall structure is simple, the operation is convenient, the cylindrical part can be accurately and reliably clamped and positioned (axial positioning is achieved by the abutment of the convex platform and the upper edge of the clamping notch), and the direct clamping of the outer side of the cylindrical part by the clamping block is avoided through the fixing plate, effectively avoiding the cylindrical part from being bruised and scratched. Description of the Drawings

[0019] To more clearly illustrate the technical solution of the present utility model, the accompanying drawings required for description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the use of the specific embodiment of the present utility model.

[0021] Figure 2 For Figure 1 the top view schematic diagram.

[0022] Figure 3 It is a schematic diagram of the cylindrical part structure.

[0023] Figure 4 It is a schematic diagram of the fixing plate structure of the specific embodiment of the present utility model.

[0024] Figure 5 It is a schematic diagram of the installation of the fixing plate of the specific embodiment of the present utility model.

[0025] In the accompanying drawings: 1. Bracket, 11. Side plate, 12. Connecting plate, 13. Weight reduction hole, 14. Mounting plate, 15. Mounting hole, 16. Rib plate, 2. Clamping block, 21. Clamping notch, 3. Lead screw, 4. Guide shaft, 5. Nut seat, 6. Bearing, 7. Handwheel, 8. Guide sleeve, 9. Fixing plate, 91. Boss, 92. Insertion post, 10. Cylindrical part, 101. Round hole. Specific embodiment

[0026] To make the purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments of the present utility model. Obviously, the embodiments described below are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0027] Such as Figures 1-5As shown in the figure, the utility model discloses a clamping tool for cylindrical parts. Six groups of circular holes 101 are arranged in a circular array on the side surface of the cylindrical part 10. Each group is in a column (axial direction), and each group has 4 circular holes 101. The clamping tool includes a bracket 1, a pair of clamping blocks 2, and several arc-shaped fixing plates 9. A lead screw 3 and a guide shaft 4 in the front-back direction are installed on the upper part of the bracket 1. The lead screw 3 is rotatably connected to the bracket 1. One side of each of the two clamping blocks 2 is threadedly sleeved with the two ends of the lead screw 3 through a nut seat 5 respectively, and the other side of each of the two clamping blocks 2 is slidably sleeved with the guide shaft 4 through a guide sleeve 8 respectively. The thread directions of the two nut seats 5 are opposite, that is, the thread directions of the front and back sections of the lead screw 3 are opposite. The upper end of the fixing plate 9 is provided with an outward convex platform 91, and the inner side of the fixing plate 9 is provided with a plug post 92 that can be inserted and positioned with each group of circular holes 101. The inner side surface of the fixing plate 9 can be attached to the side surface of the cylindrical part 10, that is, they have the same diameter. A clamping notch 21 that can clamp the outer side of the fixing plate 9 is formed on the relatively inner side of the pair of clamping blocks 2.

[0028] When clamping the cylindrical part 10, the plug posts 92 on the 6 fixing plates 9 are respectively inserted into each group of circular holes 101, and the inner side surface of the fixing plate 9 is completely attached to the side surface of the cylindrical part 10, so that there is a certain gap between adjacent fixing plates 9. The outer side surfaces of the 6 fixing plates 9 are on the same circular surface. As Figure 5 shown, the size of the outer side surface of the fixing plate 9 is the same as the size of the two clamping notches 21. The assembled cylindrical part 10 with the fixing plate 9 is placed into the opposite clamping notches 21, and the lead screw 3 is rotated to make the two clamping blocks 2 move closer to each other, and the convex platform 91 on the fixing plate 9 is supported on the upper edge of the clamping notch 21. Then continue to make the two clamping blocks 2 move closer to each other until the clamping notch 21 clamps and presses the fixing plate 9 tightly. Subsequent processing or assembly of the cylindrical part 10 can be realized. The overall structure is simple and the operation is convenient. The cylindrical part 10 can be accurately and reliably clamped and positioned (axial positioning is achieved by the abutment of the convex platform 91 and the upper edge of the clamping notch 21), and the direct clamping of the outer side of the cylindrical part 10 by the clamping block 2 is avoided through the fixing plate 9, effectively preventing the cylindrical part 10 from being bruised or scratched.

[0029] Among them, the fixing plate 9 can be made of hard plastic material to avoid damage to the outer side of the cylindrical part 10 and the clamping notch 21.

[0030] Among them, as Figures 1-2 shown, both ends of the lead screw 3 are rotatably connected to the bracket 1 through bearings 6 respectively. This ensures the accuracy and stability of the rotation of the lead screw 3.

[0031] As Figures 1-2 shown, in order to realize the convenience of the rotation operation of the lead screw 3, a handwheel 7 is connected and installed at one end of the lead screw 3.

[0032] Furthermore, both ends of the guide shaft 4 are fixedly connected to the bracket 1. This ensures the reliability and accuracy of the sliding guide of the two clamping blocks 2 by the guide shaft 4.

[0033] As shown Figures 1-2 in the figure, chamfers are provided on both sides of the clamping notch 21, which plays a guiding role during clamping to avoid jamming and damage

[0034] The radian of the clamping notch 21 is 160 - 170 degrees, which not only ensures the reliability of clamping but also ensures convenient and smooth clamping and separation

[0035] The guide sleeve 8 is a linear bearing, which realizes the reliability and accuracy of the sliding guide for the two clamping blocks 2

[0036] As shown Figures 1-2 in the figure, the bracket 1 includes two side plates 11 vertically arranged opposite to each other left and right. Two connecting plates 12 arranged opposite to each other are connected and installed between the upper parts of the two side plates 11. The lead screw 3 and the guide shaft 4 are installed on the two connecting plates 12. An installation plate 14 folded outward is provided at the bottom of the side plate 11, and a plurality of installation holes 15 are opened on the installation plate 14. The installation holes 15 are long holes in the left - right direction. The structure of the bracket 1 is simple, the positioning and installation are convenient, and fine adjustment can be realized

[0037] Furthermore, a rib plate 16 is connected between the side plate 11 and the installation plate 14, which effectively strengthens the structure of the bracket 1. A plurality of weight - reducing holes 13 are opened on the side plate 11 to realize the weight - reducing design

[0038] This cylindrical part clamping tooling can be flexibly applied to cylindrical parts 10 with multiple groups of round holes 101 opened on the side wall, such as drain pipe feet, etc

[0039] When this cylindrical part clamping tooling clamps the cylindrical part 10, the insertion posts 92 on the 6 fixing plates 9 are respectively inserted into each group of round holes 101. The inner side surface of the fixing plate 9 is completely attached to the side surface of the cylindrical part 10, so that there is a certain gap between adjacent fixing plates 9. The outer side surfaces of the 6 fixing plates 9 are on the same circular surface. As Figure 5 shown in the figure, the size of the outer side surface of the fixing plate 9 is the same as the size of the two clamping notches 21. The assembled cylindrical part 10 with the fixing plate 9 is placed into the opposite clamping notches 21. Rotate the operating lead screw 3 to make the two clamping blocks 2 move closer to each other, and make the convex platform 91 on the fixing plate 9 support on the upper edge of the clamping notch 21. Continue to make the two clamping blocks 2 move closer to each other until the clamping notch 21 clamps and presses the fixing plate 9 tightly. Subsequently, processing or assembly of the cylindrical part 10 can be realized. The overall structure is simple, the operation is convenient, and accurate and reliable clamping and positioning of the cylindrical part 10 can be carried out (axial positioning is realized by the abutment of the convex platform 91 and the upper edge of the clamping notch 21), and the direct clamping of the outer side of the cylindrical part 10 by the clamping block 2 is avoided through the fixing plate 9, effectively avoiding the crushing and scratching of the cylindrical part 10

[0040] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0041] Terms such as "upper", "lower", "outer side", "inner side", etc. in the specification, claims and the above-mentioned drawings of the present utility model, if any, are used to distinguish the relative relationship in position and do not need to be qualitatively defined. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamping tooling for cylindrical parts. Multiple groups of round holes (101) are provided on the side surface of the cylindrical part (10). It is characterized in that, The clamping tooling includes a bracket (1), a pair of clamping blocks (2), and several arc-shaped fixing plates (9); a screw rod (3) and a guide shaft (4) arranged in parallel are installed on the bracket (1); the screw rod (3) is rotatably connected to the bracket (1), and one side of each of the two clamping blocks (2) is threadedly sleeved with the two ends of the screw rod (3) through a nut seat (5), and the other side of each of the two clamping blocks (2) is slidably sleeved with the guide shaft (4) through a guide sleeve (8), and the thread rotation directions of the two nut seats (5) are opposite; the upper end of the fixing plate (9) is provided with an outward convex platform (91), and the inner side of the fixing plate (9) is provided with an insertion post (92) that can be positioned and inserted into each group of circular holes (101); a clamping notch (21) that can clamp the outer side of the fixing plate (9) is formed in the relative inner sides of the pair of clamping blocks (2).

2. The cylindrical part clamping tooling according to claim 1, characterized in that, Both ends of the screw rod (3) are rotatably connected to the bracket (1) through bearings (6).

3. The cylindrical part clamping tooling according to claim 1, wherein A handwheel (7) is connected and installed at one end of the screw rod (3).

4. The cylindrical part clamping tooling according to claim 3, characterized in that, Both ends of the guide shaft (4) are fixedly connected to the bracket (1).

5. The cylindrical part clamping tooling according to claim 1, characterized in that, Chamfers are provided on both sides of the clamping notch (21).

6. The cylindrical part clamping tooling according to claim 1, characterized in that, The guide sleeve (8) is a linear bearing.

7. The cylindrical part clamping tooling according to claim 1, characterized in that, The bracket (1) includes two relatively arranged side plates (11), and two relatively arranged connecting plates (12) are connected and installed between the two side plates (11); the screw rod (3) and the guide shaft (4) are installed on the two connecting plates (12).

8. The cylindrical part clamping tooling according to claim 7, characterized in that, An installation plate (14) that is turned outward is provided at the bottom of the side plate (11), and several installation holes (15) are formed in the installation plate (14).

9. The cylindrical part clamping tooling according to claim 8, characterized in that, A rib plate (16) is connected between the side plate (11) and the installation plate (14).

10. The cylindrical part clamping tooling according to claim 7, characterized in that, Several weight-reducing holes (13) are formed in the side plate (11).

Images