Sizing mechanism for taking thin sample from round rod

Abstract

The utility model discloses a sizing mechanism for taking a thin sample from a round bar, which relates to the technical field of machining and comprises a driving device, a mounting seat connected with the driving device, an elastic component arranged on the mounting seat, a movable part arranged at the bottom of the elastic component and in rolling contact with the end face of the round bar, and a positioning sensing component arranged on the mounting seat. According to the sizing mechanism for taking the thin sample from the round rod, accurate positioning of a round rod material can be realized, so that the sampling precision and efficiency are improved, and meanwhile, the operation difficulty and the safety risk are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a kind of fixed size mechanism for bar taking thin sample. BACKGROUND

[0002] In the field of machining, material detection and quality control, it is often necessary to take thin sample from bar for analysis, detection or further processing.

[0003] The traditional cutting equipment adopts manual measurement and marking when sampling from bar, which is greatly influenced by the experience, skill level of operator and the accuracy of measuring tool, and it is easy to produce large measurement error, so that the fixed size accuracy is difficult to guarantee, and it is difficult to accurately control the cutting size, which is easy to cause uneven cutting thickness and large size deviation, and it will affect the accuracy of subsequent detection, and it may also cause the waste of sample. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of fixed size mechanism for bar taking thin sample, which can realize the accurate positioning of bar material, thereby improving sampling accuracy and efficiency, and reducing operation difficulty and safety risk.

[0005] The above-mentioned optimization structure of the utility model is realized by the following technical scheme: a kind of fixed size mechanism for bar taking thin sample, including driving device;

[0006] Mounting seat, the mounting seat is connected with the driving device;

[0007] Elastic component, the elastic component is located on the mounting seat;

[0008] Movable element, the movable element is located at the bottom of the elastic component, and is in rolling contact with the end face of bar;

[0009] Positioning sensing component, the positioning sensing component is located on the mounting seat.

[0010] In some embodiments, the elastic component includes a limiting sleeve, and the limiting sleeve is located at the bottom of the mounting seat;

[0011] Limiting impact rod, the limiting impact rod is coaxial and slidingly arranged in the limiting sleeve, the top of the limiting impact rod penetrates the mounting seat, and the bottom of the limiting impact rod is provided with the movable element;

[0012] Compression spring, the compression spring is sleeved on the limiting impact rod.

[0013] In some embodiments, the elastic component further includes a first limiting ring, and the first limiting ring is coaxially arranged at the bottom opening of the limiting sleeve.

[0014] A second limiting ring is coaxially arranged on the limiting ram, and the second limiting ring and the bottom of the mounting seat are provided with the compression spring.

[0015] In some embodiments, the outer radius of the second limiting ring is greater than the inner radius of the first limiting ring.

[0016] In some embodiments, the movable part comprises a connecting screw rod which is screw-connected with the elastic assembly.

[0017] A connecting column is coaxially arranged at the bottom of the connecting screw rod.

[0018] A steel ball is embedded at the end of the connecting column away from the connecting screw rod and can roll on the connecting column.

[0019] A locking nut is arranged on the connecting screw rod and screw-connected with the connecting screw rod.

[0020] In some embodiments, the positioning sensing assembly comprises an L-shaped switch support which is arranged on the top surface of the mounting seat.

[0021] A limit switch is arranged on the switch support.

[0022] In some embodiments, the driving device comprises a double-shaft air cylinder.

[0023] A connecting plate is arranged between the two output shafts of the double-shaft air cylinder and the mounting seat.

[0024] In some embodiments, a protective cover is arranged on the top of the mounting seat, and the protective cover is provided with the limiting ram, and the side of the protective cover close to the mounting seat is provided with an opening and is attached to the switch support.

[0025] In summary, the utility model has the following beneficial effects:

[0026] The size fixing mechanism for taking thin sample pieces from round bars can realize accurate positioning of the round bar material through the cooperation of the driving device, the movable part and the positioning sensing assembly, thereby improving the sampling accuracy and efficiency, reducing the operation difficulty and safety risk, and reducing the friction between the movable part and the end surface of the round bar through the rolling contact between the movable part and the end surface of the round bar, facilitating the separation between the movable part and the round bar, avoiding the phenomenon that the movable part is stuck and cannot be separated due to the large friction between the movable part and the end surface of the round bar. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 It is a structural schematic diagram of the utility model.

[0028] Fig. 2 is a side view of the utility model;

[0029] Fig. 3 is a sectional view of the utility model.

[0030] In the figure: 1, driving device; 11, double-shaft air cylinder; 12, connecting plate; 2, mounting seat; 3, elastic assembly; 31, limiting sleeve; 32, limiting ram; 33, compression spring; 34, first limiting ring; 35, second limiting ring; 4, movable piece; 41, connecting screw; 42, connecting column; 43, steel ball; 44, locking nut; 5, positioning induction assembly; 51, switch support; 6, protective cover. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Reference Figs. 1-3 A fixed-size mechanism for taking a thin sample of a round bar, comprising a driving device 1, a mounting seat 2, an elastic assembly 3, a movable piece 4 and a positioning induction assembly 5, the driving device 1 can be fixed on the fixed platform of a cutting machine or other mechanism, the driving device 1 is the power source of the whole mechanism, provides power for the movement of the mounting seat 2, ensures the stability and accuracy of the sizing process, the mounting seat 2 is connected with the driving device 1, the mounting seat 2 can be made of high-strength steel plate, has sufficient rigidity and stability, the elastic assembly 3 is arranged on the mounting seat 2, can provide elastic support and buffering effect, the movable piece 4 is arranged at the bottom of the elastic assembly 3 and is in rolling contact with the end face of the round bar, can block the round bar to realize the positioning of the round bar, the positioning induction assembly 5 is arranged on the mounting seat 2 and is electrically connected with the driving device 1, the positioning induction assembly 5 can sense the position of the elastic assembly 3 and is electrically connected with external equipment, can send a signal to the external equipment after the round bar is in place, so that the external equipment clamps the round bar, facilitating the sampling operation of the round bar.

[0033] In some embodiments, the elastic assembly 3 comprises a limiting sleeve 31, a limiting ram 32 and a compression spring 33. The limiting sleeve 31 is arranged at the bottom of the mounting base 2. The limiting ram 32 is coaxially and slidably arranged in the limiting sleeve 31. The limiting sleeve 31 is fixed to the bottom of the mounting base 2 by welding or screwing, thereby providing guidance and support for the limiting ram 32. The limiting ram 32 penetrates the mounting base 2 at the top. The bottom of the limiting ram 32 is provided with the movable element 4. The compression spring 33 is arranged on the limiting ram 32, thereby providing elastic support force to enable the movable element 4 to maintain appropriate pressure on the surface of the round bar, thereby achieving the fixation of the round bar.

[0034] In some embodiments, the elastic assembly 3 further comprises a first limiting ring 34 and a second limiting ring 35. The first limiting ring 34 is coaxially arranged at the bottom opening of the limiting sleeve 31, thereby limiting the stroke of the limiting ram 32. The second limiting ring 35 is coaxially arranged on the limiting ram 32. The second limiting ring 35 and the bottom of the mounting base 2 are provided with the compression spring 33. The second limiting ring 35 can cooperate with the first limiting ring 34 to limit the movement range of the limiting ram 32, while providing a support point for the compression spring 33. When the limiting ram 32 moves downward, the second limiting ring 35 will contact the first limiting ring 34, thereby preventing the limiting ram 32 from continuing to move downward.

[0035] In some embodiments, the outer radius of the second limiting ring 35 is greater than the inner radius of the first limiting ring 34, thereby preventing the limiting ram 32 from being pulled out of the limiting sleeve 31, while limiting the compression amount of the compression spring 33, thereby protecting the mechanism from excessive pressure damage.

[0036] In some embodiments, the movable element 4 comprises a connecting screw 41, a connecting column 42, a steel ball 43 and a locking nut 44. The connecting screw 41 is screw-connected with the elastic assembly 3. The connecting column 42 is coaxially arranged at the bottom of the connecting screw 41. The steel ball 43 is embedded at the end of the connecting column 42 away from the connecting screw 41 and can roll on the connecting column 42. The locking nut 44 is arranged on the connecting screw 41 and screw-connected with the connecting screw 41, thereby adjusting the protruding length of the connecting screw 41, and thus adjusting the overall protruding length of the movable element 4. The steel ball 43 enables the movable element 4 to closely fit the end surface of the round bar, while reducing the frictional resistance, thereby facilitating the upward movement of the movable element 4 after the positioning of the round bar, and separating the movable element 4 from the end surface of the round bar, thereby avoiding the phenomenon that the movable element 4 is stuck and cannot be separated due to large frictional force between the movable element 4 and the end surface of the round bar.

[0037] In some embodiments, the positioning and sensing assembly 5 comprises an L-shaped switch bracket 51 and a limiting switch (not shown in the figure). The switch bracket 51 is arranged on the top surface of the mounting base 2. The switch bracket 51 can be made of aluminum alloy to ensure the strength and durability of the structure. The limiting switch is arranged on the switch bracket 51. The limiting switch can be a photoelectric sensing switch and is electrically connected with external equipment to realize instant signal transmission.

[0038] When the limiting ram 32 slides in the limiting sleeve 31, as the limiting ram 32 rises, its top gradually approaches and eventually reaches the sensing area of the photoelectric sensing switch, the photoelectric sensing switch is triggered immediately and responds quickly, sending a signal to the external device, and the external device receiving the signal immediately performs clamping action to clamp the round bar, facilitating subsequent sampling operation of the round bar.

[0039] In specific work, the triggering position of the limit switch needs to be set in advance according to the required thickness of the thin sample. When the mounting seat 2 is moved under the driving of the driving device 1, the limit switch monitors the displacement in real time and feeds back the electrical signal to the control system of the driving device 1. The control system adjusts the output of the driving device 1 in time according to the comparison result of the preset value and the actual feedback value, realizes the accurate control of the moving distance of the mounting seat 2, and ensures the accuracy of the cutting size.

[0040] In some embodiments, the driving device 1 includes a double-shaft air cylinder 11 and a connecting plate 12. The double-shaft air cylinder 11 has two output shafts and can provide larger thrust and stability. The connecting plate 12 is arranged between the two output shafts of the double-shaft air cylinder 11 and the mounting seat 2. The connecting plate 12 transmits power and fixes the mounting seat 2 through the two output shafts of the double-shaft air cylinder 11, which can improve the connection strength between the double-shaft air cylinder 11 and the mounting seat 2, thereby improving the stability of the movement of the mounting seat 2. The connecting plate 12 is firmly connected with the output shafts of the double-shaft air cylinder 11 and the mounting seat 2 through the bolt connection mode, which ensures the reliability of power transmission.

[0041] In some embodiments, a protective cover 6 is further included, which is arranged on the top of the mounting seat 2, and the limiting ram 32 is arranged in the protective cover 6. The protective cover 6 can protect the internal mechanical structure and electronic components from external interference and damage, prevent foreign matters from entering to affect the operation of the mechanism, and the protective cover is provided with an opening near the side close to the mounting seat 2, and the side close to the mounting seat 2 of the protective cover 6 is attached to the switch bracket 51, which can ensure the normal use of the limit switch. The protective cover 6 can be made of transparent engineering plastic, such as polycarbonate, which has good mechanical properties and optical properties. It can effectively block the debris and cooling liquid generated during cutting to protect the internal components from pollution and damage, and also facilitate the operator to observe the running state of the mechanism and timely discover and handle abnormal conditions.

[0042] The specific working principle is as follows:

[0043] Before sampling work, the operator needs to set the trigger position of the limit switch according to the thickness of the required thin sample, when the double-shaft air cylinder 11 is started, the connecting plate 12 is pushed, and then the mounting seat 2 is driven to move downward to the set position, at this time, the external equipment pushes the round bar to move towards the movable part, when the movable part 4 contacts the end face of the round bar, with the continuous movement of the round bar, the limit rod 32 is driven to move away from the round bar in the limit sleeve 31 through the movable part 4, the compression spring 33 is compressed, with the movement of the limit rod 32, the limit rod 32 gradually approaches and finally reaches the sensing area of the limit switch. When the top of the limit rod 32 enters the sensing area, the photoelectric sensing switch is triggered, and a signal is immediately sent to the external equipment. After receiving the signal sent by the positioning sensing assembly 5, the external equipment immediately performs the clamping action to clamp the round bar, realizes the positioning and fixing of the round bar, and ensures the stability of the round bar in the subsequent sampling process, so as to facilitate accurate cutting operation. Then the driving device 1 drives the mounting seat 2 to move upward, since the movable part 4 and the round bar are in rolling contact through the steel ball 43, the friction force between the movable part 4 and the end face of the round bar is reduced, so that the phenomenon that the movable part 4 is stuck and cannot be separated is avoided. After the movable part 4 is separated from the round bar, the limit rod 32 is reset under the elastic action of the compression spring 33, so as to facilitate the next sizing operation.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sizing mechanism for taking a thin sample from a round bar, characterized by: Including driving device (1); Mounting seat (2), the mounting seat (2) is connected with the driving device (1); Elastic component (3), the elastic component (3) is located on the mounting seat (2); Movable element (4), the movable element (4) is located at the bottom of the elastic component (3), and is in rolling contact with the end face of the round bar; Positioning sensing assembly (5), the positioning sensing assembly (5) is provided on the mounting seat (2).

2. A sizing mechanism for taking a thin sample from a round bar according to claim 1, characterized in that: The elastic component (3) includes a limiting sleeve (31) provided at the bottom of the mounting seat (2); The limiting sleeve (31) is coaxially and slidingly provided in the limiting sleeve (31), the limiting sleeve (32) penetrates the mounting seat (2) at the top, and the movable element (4) is provided at the bottom of the limiting sleeve (32); Compression spring (33), the compression spring (33) is sleeved on the limiting sleeve (32).

3. A gauging mechanism for taking thin samples from round bar according to claim 2, characterized in that: The elastic component (3) further comprises a first limiting ring (34) coaxially arranged at the bottom opening of the limiting sleeve (31); Second limiting ring (35), the second limiting ring (35) is coaxially arranged on the limiting sleeve (32), and the second limiting ring (35) and the bottom of the mounting seat (2) are provided with the compression spring (33).

4. A sizing mechanism for taking a thin sample from a round bar according to claim 3, wherein: The outer radius of the second limiting ring (35) is greater than the inner radius of the first limiting ring (34).

5. A sizing mechanism for taking a thin sample from a round bar as defined in claim 1, wherein: The movable element (4) includes a connecting screw (41) which is screwed with the elastic component (3); Connecting column (42), the connecting column (42) is coaxially arranged at the bottom of the connecting screw (41); Steel ball (43), the steel ball (43) is embedded in the end of the connecting column (42) away from the connecting screw (41) and can roll on the connecting column (42); Locking nut (44), the locking nut (44) is provided on the connecting screw (41) and is screwed with the connecting screw (41).

6. A gauging mechanism for taking thin samples from round bar as defined in claim 2, wherein: The positioning sensing assembly (5) includes an L-shaped switch bracket (51), and the switch bracket (51) is arranged on the top surface of the mounting seat (2); Limiting switch, the limiting switch is arranged on the switch bracket (51).

7. A sizing mechanism for taking a thin sample from a round bar as defined in claim 1, wherein: The driving device (1) includes a double-shaft air cylinder (11); Connecting plate (12), the connecting plate (12) is arranged between the two output shafts of the double-shaft air cylinder (11) and the mounting seat (2).

8. A sizing mechanism for taking a thin sample from a round bar according to claim 6, wherein: It also includes a protective cover (6) provided on the top of the mounting seat (2), and the protective cover (6) is provided with the limiting sleeve (32), the protective cover (6) is provided with an opening near the mounting seat (2), and the protective cover (6) is attached to the switch bracket (51) near the mounting seat (2).

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