Steel sample clamp
By designing steel sample clamps, using the combined structure of the gripping rod and locking sleeve, reliable clamping of steel samples is achieved, safety hazards and stability problems during manual clamping are solved, and safety and accuracy of grinding are improved.
Patent Information
- Application Number
- CN202422125909.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, there are safety hazards when manually holding the clamped steel sample for grinding and it is difficult to ensure the stability and accuracy of the clamping.
A steel sample clamp is designed, including a holding rod and a locking sleeve. By setting a round table-shaped steel sample fixing head at the end of the holding rod, and using the locking sleeve to cooperate with the external thread, reliable clamping and loosening of the steel sample is achieved, avoiding direct contact between human hands and grinding equipment.
It improves the safety and processing accuracy of the steel sample grinding process, ensuring clamping stability and processing efficiency.
Smart Images
Figure CN223186305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel sample detection auxiliary tools, in particular to a steel sample clamp. Background Art
[0002] Steel composition analysis is the basis for steel quality control during the smelting process in steel mills. Spectral composition analysis is one of the commonly used methods for steel composition analysis. After taking out the steel sample, the surface of the steel sample needs to be ground before the spectral composition analysis is performed on the steel sample. Existing steel sample surface grinding is mainly carried out by manually holding the steel sample. Due to the rough surface of the steel sample and the heat generated during the grinding process, manually holding the steel sample by hand poses a major safety hazard. In addition, the volume of the steel sample is relatively small, and it is difficult to apply force manually to the steel sample, making it difficult to ensure the stability of the clamping and the accuracy of the processing. Utility Model Content
[0003] The purpose of the utility model is to provide a steel sample clamp.
[0004] The technical solution for achieving the purpose of the utility model is: a steel sample clamp, comprising a holding rod and a locking sleeve, a steel sample fixing head is provided at the end of the holding rod, the steel sample fixing head is a truncated cone-shaped cylindrical structure, the outer diameter of the steel sample fixing head gradually increases in the direction away from the holding rod, a steel sample clamping cavity is provided in the steel sample fixing head, a telescopic groove is provided on the wall of the steel sample fixing head, and an external threaded portion is also provided on the outer wall of the holding rod; the locking sleeve has a cavity with two ends through, the cavity includes a coaxial locking cavity and a fixing cavity, and the inner wall of the fixing cavity has an internal threaded portion; the locking sleeve is sleeved on the holding rod, the internal threaded portion is threadedly matched with the external threaded portion of the holding rod, and the steel sample fixing head is sleeved in the locking cavity.
[0005] Furthermore, the steel sample fixing head is coaxial with the holding rod. Under the coaxial structure, it is convenient to use and also convenient to assemble the holding rod and the locking sleeve.
[0006] Furthermore, the steel sample clamping cavity has a stepped structure, comprising a first cavity and a second cavity coaxially connected, the first cavity having a larger diameter than the second cavity, and the first cavity being located on the side of the second cavity away from the holding rod. With this stepped structure, when the steel sample is placed in the first cavity and the steel sample fixing head clamps the steel sample for grinding, the step between the first and second cavities limits and secures the steel sample, preventing axial displacement of the steel sample and making the clamping structure more secure and reliable.
[0007] Furthermore, the entrance of the steel sample holding cavity is provided with a trumpet-shaped flared chamfer. The setting of the flared chamfer allows the steel sample to enter the steel sample holding cavity better when the steel sample is placed therein.
[0008] Furthermore, a clearance groove is provided on the wall of the holding rod. Steel samples have different structures. In addition to the common circular shape, there is also a racket shape, where the circular shape extends radially outward with a handle. The provision of the clearance groove can easily make way for the handle of the racket-shaped steel sample, allowing the handle of the steel sample to pass through the clearance groove or even extend out. The steel sample body is then placed in the steel sample clamping cavity, thereby achieving clamping of the racket-shaped steel sample.
[0009] Furthermore, the locking cavity is truncated cone-shaped. The locking cavity can be cylindrical or truncated cone-shaped. Compared with the former, the truncated cone-shaped locking cavity fits the steel sample fixing head better when tightening the steel sample fixing head.
[0010] Furthermore, the angle between the outer wall of the steel sample fixing head and the axial line of the steel sample fixing head is α; the angle between the inner wall of the locking cavity and the axial line of the locking cavity is β, and the relationship between α and β satisfies α ≥ β. When the slope of the inner wall of the locking cavity is no greater than the slope of the outer wall of the steel sample fixing head, the locking cavity forms a converging effect, and the locking sleeve has a better locking effect on the steel sample fixing head.
[0011] The steel sample clamp of the present invention is provided with a steel sample fixing head of a truncated cone-shaped cylindrical structure at the end of the holding rod, so that the steel sample fixing head has the telescopic slot and can be retracted, and then the locking sleeve is threadedly installed on the holding rod and sleeved on the outside of the steel sample fixing head, so that the opening and closing of the steel sample fixing head can be controlled by rotating the locking sleeve, so that the steel sample can be placed in the steel sample clamping cavity to achieve the clamping of the steel sample. After the steel sample is clamped, the holding rod can be manually grasped to grind the steel sample. Compared with manual hand-grinding of steel samples, the steel sample clamp of the present invention is used to clamp the steel sample, and when grinding the steel sample, the human hand can be kept away from the lathe grinding equipment, which can effectively avoid the safety hazards of manual clamping of the steel sample and improve the safety of the steel sample preparation process. In addition, the steel sample clamp of the present invention has higher firmness and better stability in clamping the steel sample, which can greatly improve the processing accuracy and work efficiency of the steel sample surface grinding. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the main structure of the holding rod of the steel sample clamp of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the holding rod of the steel sample clamp of the utility model when viewed from above;
[0014] Figure 3 yes Figure 1Schematic diagram of the cross-sectional structure along line AA;
[0015] Figure 4 This is a schematic diagram of the main structure of the locking sleeve of the steel sample clamp of the utility model;
[0016] Figure 5 This is a schematic diagram of the structure of the locking sleeve of the steel sample clamp of the utility model when viewed from above;
[0017] Figure 6 yes Figure 4 Schematic diagram of the cross-section structure along line BB;
[0018] Figure 7 It is a schematic diagram of the cross-sectional structure of the steel sample clamp of the present invention. DETAILED DESCRIPTION
[0019] The following is a detailed description of the preferred embodiment of the steel sample clamp of the utility model in conjunction with the accompanying drawings:
[0020] like Figures 1 to 7 As shown, a steel sample clamp comprises a holding rod 1 and a locking sleeve 2, the end of the holding rod 1 is provided with a steel sample fixing head 11, the steel sample fixing head 11 is a truncated cone-shaped cylindrical structure, the outer diameter R of the steel sample fixing head 11 gradually increases in the direction away from the holding rod 1, the steel sample fixing head 11 has a steel sample clamping cavity 111, the wall of the steel sample fixing head 11 is provided with a telescopic groove 112, and the outer wall of the holding rod 1 is also provided with an external threaded portion 12; the locking sleeve 2 has a cavity 20 with two ends through, the cavity 20 includes a coaxial locking cavity 21 and a fixing cavity 22, the inner wall of the fixing cavity 22 has an internal threaded portion 221; the locking sleeve 2 is sleeved on the holding rod 1, the internal threaded portion 221 is threadedly matched with the external threaded portion 12 of the holding rod 1, and the steel sample fixing head 11 is sleeved in the locking cavity 21.
[0021] In the steel sample clamp of the present invention, the holding rod 1 is used for holding by an operator; after the telescopic groove 112 is opened on the wall of the steel sample fixing head 11, the steel sample fixing head 11 can be retracted; the steel sample clamping cavity 111 is used to install the steel sample; in the cavity 20 of the locking sleeve 2, the locking cavity 21 cooperates with the steel sample fixing head 11, and is used to tightly clamp the steel sample fixing head 11, so that the steel sample fixing head 11 is retracted; the internal threaded portion 221 of the fixing cavity 22 cooperates with the external threaded portion 12, and under the threaded structure, the locking sleeve 2 can move back and forth by rotation.
[0022] When grinding a steel sample in the present invention, the steel sample is placed in the steel sample clamping cavity 111, and the locking sleeve 2 is rotated to move the locking sleeve 2 toward the steel sample fixing head 11. As the locking sleeve 2 moves, the locking sleeve 2, which is sleeved on the outside of the steel sample fixing head 11, gradually forms a tight hoop on the steel sample fixing head 11, causing the steel sample fixing head 11 to retract and clamp the steel sample in the steel sample clamping cavity 111. After the steel sample is clamped, the holding rod 1 is manually grasped to grind the steel sample.
[0023] According to the steel sample clamp of the present invention, after the steel sample is ground, the locking sleeve 2 is rotated in the reverse direction to move the locking sleeve 2 away from the steel sample fixing head 11. As the locking sleeve 2 moves, the locking sleeve 2 gradually loses its tightening effect on the steel sample fixing head 11, the steel sample fixing head 11 opens, and the steel sample in the steel sample clamping cavity 111 can be taken out.
[0024] The steel sample clamp of the present invention provides the steel sample fixing head 11 with a truncated cone-shaped cylindrical structure at the end of the holding rod 1, so that the steel sample fixing head 11 has the telescopic groove 112 and can be retracted, and then the locking sleeve 2 outside the steel sample fixing head 11 is threadedly installed on the holding rod 1, so that the opening and closing of the steel sample fixing head 11 can be controlled by rotating the locking sleeve 2, so that the steel sample 100 can be placed in the steel sample clamping cavity 111 to clamp the steel sample 100. After the steel sample 100 is clamped, the holding rod 1 can be manually held to grind the steel sample. Compared with manual hand-grinding of steel samples, the steel sample clamp of the utility model is used to clamp the steel sample. When grinding the steel sample 100, the human hands can be kept away from the turning and grinding equipment, which can effectively avoid the safety hazards of manual clamping of steel samples and improve the safety of the steel sample preparation process; and the steel sample clamp of the utility model has higher firmness and better stability in clamping the steel sample, which can greatly improve the processing accuracy and work efficiency of the steel sample surface grinding.
[0025] In the steel sample clamp of the present invention, preferably, the steel sample fixing head 11 is coaxial with the holding rod 1. Under the coaxial structure, it is convenient to use and also convenient to assemble the holding rod 1 and the locking sleeve 2.
[0026] In the steel sample clamp of the present invention, preferably, the steel sample clamping cavity 111 is a cavity with a stepped structure, comprising a first cavity 1111 and a second cavity 1112 coaxially connected, wherein the diameter R1 of the first cavity 1111 is greater than the diameter R2 of the second cavity 1112, and the first cavity 1111 is located on the side of the second cavity 1112 away from the holding rod 1. Under the stepped structure, the steel sample 100 is placed in the first cavity 1111. When the steel sample fixing head 11 clamps the steel sample 100 for grinding, the step between the first cavity 1111 and the second cavity 1112 can limit and secure the steel sample 100, preventing axial displacement of the steel sample 100 and making the clamping structure more solid and reliable.
[0027] In the steel sample clamp of the present invention, preferably, the entrance of the steel sample clamping cavity 111 is provided with a trumpet-shaped flared chamfer 1110. The setting of the flared chamfer 1110 allows the steel sample 100 to enter better when the steel sample 100 is placed in the steel sample clamping cavity 111.
[0028] In the steel sample clamp of the present invention, preferably, a clearance groove 113 is further provided on the wall of the holding rod 1. The steel sample 100 has different structures. In addition to the common round cake shape, there is also a racket shape, that is, the round cake extends radially outward with a handle. The provision of the clearance groove 113 can easily make way for the handle of the racket-shaped steel sample 100, allowing the handle of the steel sample 100 to pass through the clearance groove 113 or even extend out, and the steel sample 100 body is placed in the steel sample clamping cavity 111 to achieve clamping of the racket-shaped steel sample 100.
[0029] In the steel sample clamp of the present invention, the locking cavity 21 is preferably truncated cone-shaped. The locking cavity 21 can be cylindrical or truncated cone-shaped. Compared with the former, the truncated cone-shaped locking cavity 21 fits more closely to the steel sample fixing head 11 when tightening the steel sample fixing head 11.
[0030] In the present steel sample clamp, preferably, the angle between the outer wall of the steel sample fixing head 11 and the axial line of the steel sample fixing head 11 is α; the angle between the inner wall of the locking cavity 21 and the axial line of the locking cavity 21 is β, and the relationship between α and β satisfies α ≥ β. When the slope of the inner wall of the locking cavity 21 is no greater than the slope of the outer wall of the steel sample fixing head 11, the locking cavity 21 forms a contracting effect, and the locking sleeve 2 has a better locking effect on the steel sample fixing head 11.
[0031] For ordinary technicians in the technical field to which the utility model belongs, the utility model can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the scope of protection of the utility model.
Claims
1. A steel sample fixture, characterized by: It includes a holding rod and a locking sleeve, a steel-sample fixing head is provided at the end of the holding rod, the steel-sample fixing head is a truncated cone-shaped cylindrical structure, the outer diameter of the steel-sample fixing head gradually increases in the direction away from the holding rod, and a steel-sample clamping cavity is provided in the steel-sample fixing head, a telescopic groove is provided on the wall of the steel-sample fixing head, and an external threaded portion is also provided on the outer wall of the holding rod; the locking sleeve has a cavity with two ends through, and the cavity includes a coaxial locking cavity and a fixing cavity, and the inner wall of the fixing cavity has an internal threaded portion; the locking sleeve is sleeved on the holding rod, the internal threaded portion is threadedly matched with the external threaded portion of the holding rod, and the steel-sample fixing head is sleeved in the locking cavity.
2. The steel sample fixture according to claim 1, characterized in that: The steel sample fixing head is coaxial with the holding rod.
3. The steel sample fixture according to claim 1, characterized in that: The steel sample clamping cavity is a cavity with a stepped structure, and the steel sample clamping cavity includes a first cavity and a second cavity coaxially connected. The diameter of the first cavity is larger than the diameter of the second cavity, and the first cavity is located on the side of the second cavity away from the holding rod.
4. The steel sample fixture according to claim 1, characterized in that: The entrance of the steel sample clamping cavity is provided with a trumpet-shaped expansion chamfer.
5. The steel sample fixture according to claim 1, characterized in that: A clearance groove is also provided on the wall of the holding rod.
6. The steel sample fixture according to claim 1, characterized in that: The locking cavity is in the shape of a truncated cone.
7. The steel sample fixture according to claim 1, characterized in that: The angle between the outer wall of the steel sample fixing head and the axial line of the steel sample fixing head is а; the angle between the inner wall of the locking cavity and the axial line of the locking cavity is β, and the relationship between а and β satisfies а≥β.