Test equipment for steel bar production detection

Abstract

The invention discloses test equipment for reinforcing steel bar production detection, and relates to the technical field of universal testing machines, the test equipment comprises a rack, a lower clamp, an upper clamp and a driving mechanism for driving the upper clamp to lift, and the upper clamp and the lower clamp have the same structure; the lower clamp comprises a bearing part which is fixedly arranged on the rack and internally provided with a wedge-shaped groove. The two sets of clamping pieces are oppositely arranged and are arranged in the wedge-shaped groove; the lifting assembly is arranged at the lower end of the bearing part and is matched with the clamping part; a main clamping unit and an auxiliary clamping unit are further arranged in the clamping pieces, and after the two sets of clamping pieces get close to each other and clamp the reinforcing steel bar, the main clamping unit clamps a reinforcing steel bar body, and the auxiliary clamping unit clamps a reinforcing steel bar transverse rib; by means of the steel bar clamping device, the steel bar clamping effect can be improved, and it can still be guaranteed that effective clamping is provided for steel bars without large clamping force.

Description

Technical Field

[0001] The invention relates to the technical field related to universal testing machines, in particular to testing equipment for steel bar production detection. Background Art

[0002] Universal testing machine is a material testing machine that integrates tensile, bending, compression, shearing, ring stiffness and other functions. It is mainly used for mechanical properties testing of metal and non-metallic materials. Universal testing machine has the advantages of high precision, wide speed regulation range and convenient operation, so it has become an ideal choice for scientific research and industrial testing.

[0003] At present, the universal testing machine includes a frame, a driving part and two clamps. The two clamps are respectively installed at the upper and lower ends of the frame. The two clamps clamp the two ends of the test material. The driving part drives one clamp to move, so as to test the tensile or compression properties of the test material.

[0004] The patent document with patent number CN118258687B discloses a universal testing machine, including a frame, a driving part and two clamps, the clamps include a clamp head, two hydraulic cylinder bodies, a first piston and a clamp block, a suction hole is provided on the side wall of the clamp block, and a vacuum mechanism is provided in the first piston, the vacuum mechanism vacuums the suction hole and enables the clamp block to absorb the plate-like material, a receiving groove is provided on the side wall of the clamp block, and the columnar material is located in the two receiving grooves. By using the receiving grooves and the suction holes, when the test material is a columnar material, the two clamp blocks clamp the columnar material through the two receiving grooves, and the columnar material is located in the receiving groove, which increases the contact area between the columnar material and the clamp blocks, so that the clamping and fixing effect of the clamp blocks is better; when the test material is a plate-like material, the two clamp blocks clamp the plate, and the plate blocks the suction hole, and the vacuum mechanism in the first piston vacuums the suction hole, so that the clamp blocks absorb the plate, thereby achieving a better clamping effect of the clamp blocks.

[0005] However, the inventors discovered that when the inspected product is a steel bar, since the steel bar is provided with a plurality of evenly arranged transverse ribs, although a receiving groove is provided on the side wall of the clamp, the setting of the receiving groove still cannot ensure that the clamp is in close contact with the steel bar body. Instead, the clamp is in close contact with the transverse ribs due to the obstruction of the transverse ribs. This results in the clamp only clamping a plurality of transverse ribs, which results in a smaller effective clamping area between the steel bar and the clamp, resulting in a poor clamping effect. Therefore, in order to ensure the subsequent stable clamping of the steel bar, the prior art has to apply greater pressure to the steel bar, but this will cause certain wear and damage to the transverse ribs, thereby affecting the subsequent inspection results of the steel bar, which is not conducive to use. Summary of the invention

[0006] In order to solve the defects in the prior art, the present invention provides a test equipment for steel bar production detection.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides a test device for steel bar production detection, comprising: A frame, a lower clamp, an upper clamp and a driving mechanism for driving the upper clamp to rise and fall, wherein the upper clamp has the same structure as the lower clamp; The lower fixture comprises: A bearing member, fixedly arranged on the frame and having a wedge-shaped groove formed inside; Clamping members, two groups of which are arranged opposite to each other and disposed inside the wedge-shaped groove; A lifting assembly, disposed at the lower end of the bearing member and cooperating with the clamping member; A main clamping unit and a secondary clamping unit are also provided inside the clamping member. After the two groups of clamping members approach each other and complete clamping of the steel bar, the main clamping unit clamps the steel bar body, and the secondary clamping unit clamps the steel bar transverse ribs.

[0008] As a preferred technical solution of the present invention, the main clamping unit comprises: A slide bar, fixedly disposed inside the clamping member; Slide blocks are provided in a plurality of groups and are slidably arranged on the slide bar; A main clamping plate, fixedly arranged at one end of the sliding block; A connecting rod, each of the sliders is provided with a connecting rod at a position away from the main clamping plate, and multiple groups of the connecting rods connect the sliders to each other in a transmission manner; A driving plate, fixedly connected to the slider at one end; The driving member is rotatably arranged on the clamping member and one end of the driving member is threadedly arranged with the driving plate.

[0009] As a preferred technical solution of the present invention, the sliding block located in the middle is fixed inside the clamping member through a fixing block.

[0010] As a preferred technical solution of the present invention, the auxiliary clamping unit is fixedly arranged inside the clamping member and is arranged in contact with the back side of the main clamping plate. The auxiliary clamping unit is provided with a through groove at a position corresponding to the sliding block.

[0011] As a preferred technical solution of the present invention, a buffer unit is fixedly arranged on one side of the auxiliary clamping unit close to the main clamping plate, and the buffer unit includes a first buffer layer arranged in contact with the auxiliary clamping unit, a reinforcement layer arranged on the outside of the first buffer layer, a second buffer layer arranged on the outside of the reinforcement layer, and a wear-resistant layer arranged on the outside of the second buffer layer.

[0012] As a preferred technical solution of the present invention, a plurality of anti-slip protrusions are arranged on the outer side of the wear-resistant layer.

[0013] As a preferred technical solution of the present invention, the lifting assembly includes: A lifting unit, fixedly arranged inside the frame; A driving rod, which is transmission-connected to the lifting unit and has a lifting plate fixedly disposed on the upper end; The clamping member is provided with a limiting groove at a position corresponding to the lifting plate.

[0014] As a preferred technical solution of the present invention, a sealing plate is further provided at the upper end of the clamping member and is fitted with the wedge-shaped groove.

[0015] As a preferred technical solution of the present invention, the driving mechanism includes two groups of hydraulic driving units arranged inside the frame, lifting columns connected to the hydraulic driving units, and a lifting frame arranged between the two groups of lifting columns; The upper clamp is fixedly arranged inside the lifting frame.

[0016] As a preferred technical solution of the present invention, a lower pressing plate is fixedly provided on the upper end of the lifting frame, and an upper pressing plate cooperating with the lower pressing plate is fixedly provided on the top of the frame at a position corresponding to the lower pressing plate.

[0017] The beneficial effects of the present invention are: In the present invention, a main clamping unit and a secondary clamping unit are arranged inside the clamping member. After the two groups of clamping members are close to each other and complete clamping of the steel bar, the main clamping unit can clamp the steel bar body, and the secondary clamping unit can clamp the steel bar transverse ribs. In this way, the arrangement of the main clamping unit can effectively increase the contact area between the clamping member and the steel bar, replacing the traditional method of clamping the steel bar transverse ribs, but clamping the transverse ribs and the steel bar body at the same time. This arrangement can improve the clamping effect of the steel bar, and can still ensure effective clamping of the steel bar without the need for a large clamping force, thereby realizing the protection of the clamped part of the steel bar and ensuring the accuracy of the subsequent inspection results of the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the structure of the lower fixture.

[0020] Figure 3for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 4 It is a schematic diagram of the structure of the clamping part.

[0022] Figure 5 Schematic diagram of the structure of the main clamping unit and the auxiliary clamping unit.

[0023] Figure 6 Another structural schematic diagram of the main clamping unit and the auxiliary clamping unit.

[0024] Figure 7 Schematic diagram of the structure of the main clamping unit.

[0025] Figure 8 Schematic diagram of the structure of the buffer unit.

[0026] Fig. 9 It is a structural diagram of the driving mechanism.

[0027] In the figure: 1. frame; 2. lower clamp; 3. upper clamp; 4. driving mechanism; 41. hydraulic driving unit; 42. lifting column; 43. lifting frame; 5. bearing member; 51. wedge groove; 6. clamping member; 61. main clamping unit; 611. sliding rod; 612. sliding block; 613. main clamping plate; 614. connecting rod; 615. driving plate; 616. driving member; 617. fixing block; 62. auxiliary clamping unit; 621. through groove; 63. limiting groove; 64. sealing plate; 7. lifting assembly; 71. lifting unit; 72. driving rod; 73. lifting plate; 8. buffer unit; 81. first buffer layer; 82. strengthening layer; 83. second buffer layer; 84. wear-resistant layer; 85. anti-skid protrusion; 9. lower pressure plate; 10. upper pressure plate. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Embodiment 1 like Figure 1 - Figure 5As shown, a test equipment for steel bar production inspection includes a frame 1, a lower clamp 2, an upper clamp 3 and a driving mechanism 4 for driving the upper clamp 3 to rise and fall, wherein the upper clamp 3 has the same structure as the lower clamp 2; the lower clamp 2 includes a bearing member 5, which is fixedly arranged on the frame 1 and has a wedge-shaped groove 51 inside; a clamping member 6, which is relatively arranged in two groups and is arranged inside the wedge-shaped groove 51; a lifting component 7, which is arranged at the lower end of the bearing member 5 and cooperates with the clamping member 6; a main clamping unit 61 and an auxiliary clamping unit 62 are also arranged inside the clamping member 6, and after the two groups of clamping members 6 are close to each other and complete clamping of the steel bar, the main clamping unit 61 clamps the steel bar body, and the auxiliary clamping unit 62 clamps the steel bar transverse rib.

[0030] Among them, by arranging a main clamping unit 61 and an auxiliary clamping unit 62 inside the clamping member 6, after the two groups of clamping members 6 are close to each other and complete the clamping of the steel bar, the main clamping unit 61 can clamp the steel bar body, and the auxiliary clamping unit 62 can complete the clamping of the steel bar transverse ribs. In this way, the setting of the main clamping unit 61 can effectively increase the contact area between the clamping member 6 and the steel bar, replacing the traditional method of clamping the steel bar transverse ribs, but clamping the transverse ribs and the steel bar body at the same time. This setting can improve the clamping effect of the steel bar, and can still ensure effective clamping of the steel bar without the need for a large clamping force, thereby realizing the protection of the clamped part of the steel bar and ensuring the accuracy of the subsequent inspection results of the steel bar.

[0031] This equipment is suitable for the quality inspection link of steel bar production lines and can effectively improve production efficiency and product quality.

[0032] Further, if Figure 2 - Figure 7 As shown, the main clamping unit 61 includes a sliding rod 611, a slider 612, a main clamping plate 613, a connecting rod 614, a driving plate 615 and a driving member 616. The sliding rod 611 is fixedly arranged inside the clamping member 6. The slider 612 is provided with several groups and is slidably arranged on the sliding rod 611. The slider 612 located in the middle is fixedly arranged inside the clamping member 6 by a fixing block 617; the main clamping plate 613 is fixedly arranged at one end of the slider 612; a connecting rod 614 is arranged at a position of each slider 612 away from the main clamping plate 613, and multiple groups of the connecting rod 614 connect multiple sliders 612 to each other in transmission; the driving plate 615 is fixedly connected to the slider 612 at one end; the driving member 616 is rotatably arranged on the clamping member 6 and one end of which is threadedly arranged with the driving plate 615.

[0033] Among them, by setting the spacing between multiple main clamping plates 613 in the main clamping unit 61, it can be changed. When testing steel bars with the same diameter and different transverse rib spacing, there is no need to frequently replace the clamping member 6. It is only necessary to remove the clamping member 6 first and adjust the spacing between the multiple main clamping plates 613, which is easy to use.

[0034] In detail, a threaded rod is provided on one side of the driving member 616 close to the driving plate 615, and a threaded groove matching the threaded rod is provided inside the driving plate 615. When the spacing between the main clamping plates 613 needs to be adjusted, it is only necessary to use a tool (an inner hexagonal wrench can be used in this embodiment) to drive the driving member 616 to rotate. After the driving member 616 rotates, it will drive the driving plate 615 to slide inside the clamping member 6, thereby driving the slider 612 fixedly connected to the driving plate 615 to slide on the slide rod 611. The slider 61 In the process of moving on the slide bar 611, the connecting rod 614 drives the remaining slide blocks 612 to slide on the slide bar 611, and finally the spacing between the multiple slide blocks 612 is kept the same, thereby driving the spacing between the multiple main clamping plates 613 to change. Since the slide block 612 located in the middle is fixed inside the clamping member 6 by the fixing block 617, the slide block 612 will not move with the remaining slide blocks 612, and the remaining slide blocks 612 will simultaneously move away from or close to the slide block 612 in the middle position.

[0035] It should be noted that the main clamping plate 613 is an arc-shaped structure and matches the shape of the transverse rib. This arrangement can ensure that the main clamping plate 613 fits the steel bar body to adapt to the thread shape of the steel bar, ensure that the clamping force is evenly distributed, and thus achieve effective clamping of the steel bar body.

[0036] Further, if Figure 5 As shown, the auxiliary clamping unit 62 is fixedly arranged inside the clamping member 6 and is arranged in contact with the back side of the main clamping plate 613. In this way, when the main clamping plate 613 clamps the steel bar body, the auxiliary clamping unit 62 can just contact with the transverse rib to clamp the transverse rib. The auxiliary clamping unit 62 is provided with a through slot 621 at a position corresponding to the slider 612 . The through slot 621 can facilitate the movement of the slider 612 and avoid interference between the slider 612 and the auxiliary clamping unit 62 .

[0037] Further, if Figure 8As shown, a buffer unit 8 is fixedly arranged on one side of the auxiliary clamping unit 62 close to the main clamping plate 613. Optionally, a buffer unit 8 can also be arranged on the outside of the main clamping plate 613. The buffer unit 8 includes a first buffer layer 81 arranged in contact with the auxiliary clamping unit 62, a reinforcement layer 82 arranged on the outside of the first buffer layer 81, a second buffer layer 83 arranged on the outside of the reinforcement layer 82, and a wear-resistant layer 84 arranged on the outside of the second buffer layer 83.

[0038] Among them, by setting up the buffer unit 8, the rigid contact between the auxiliary clamping unit 62 and the transverse rib can be avoided. Instead, the buffer unit 8 makes elastic contact with the transverse rib. The elastic deformation of the buffer unit 8 can increase the contact area with the transverse rib, thereby further improving the clamping effect of the transverse rib.

[0039] In detail, the first buffer layer 81 and the second buffer layer 83 are both made of rubber or polyurethane material. The rubber material has the advantages of good elasticity, low cost and easy processing, and the polyurethane material has the advantages of good elasticity, high wear resistance, excellent fatigue resistance and suitable for multiple extrusions. The reinforcement layer 82 may be a metal mesh, thereby improving the tensile strength and durability of the buffer unit 8; The wear-resistant layer 84 may be made of wear-resistant rubber, which not only improves wear resistance but also maintains elasticity, thereby ensuring a good clamping effect between the auxiliary clamping unit 62 and the transverse rib.

[0040] It should be noted that a plurality of anti-skid protrusions 85 are provided on the outer side of the wear-resistant layer 84. The anti-skid protrusions 85 may be spherical. The provision of the anti-skid protrusions 85 may further increase the friction between the wear-resistant layer 84 and the steel bar transverse ribs, thereby ensuring the clamping effect between the auxiliary clamping unit 62 and the steel bar transverse ribs. Alternatively, a tiny concave-convex texture may be designed on the outer surface of the wear-resistant layer 84 to increase the friction coefficient with the threaded transverse ribs and improve the clamping force.

[0041] Further, if Figure 2 - Figure 3 As shown, the lifting assembly 7 includes a lifting unit 71, a driving rod 72 and a lifting plate 73. The lifting unit 71 is fixedly arranged inside the frame 1; the driving rod 72 is transmission-connected to the lifting unit 71 and a lifting plate 73 is fixedly arranged on the upper end; the clamping member 6 is provided with a limiting groove 63 at a position corresponding to the lifting plate 73 to facilitate the placement of the lifting plate 73.

[0042] Taking the following clamp 2 as an example, when installing the clamping member 6, it is necessary to first place the lifting plate 73 inside the limiting groove 63. Then, when using it, first control the lifting unit 71 to work. After the lifting unit 71 works, it will drive the driving rod 72 to rise and then drive the lifting plate 73 to rise. After the lifting plate 73 rises, it can drive the clamping member 6 to rise as a whole. During the rising process of the two groups of clamping members 6, under the action of the wedge-shaped groove 51, the two groups of clamping members 6 will approach each other until the steel bars are stably clamped.

[0043] It should be noted that a detachable limit block is also provided on the outer side of the carrier 5 , one end of which is fitted with the clamp 6 , and the limit block is used to limit the clamp 6 to prevent the clamp 6 from escaping from the wedge groove 51 .

[0044] Further, if Figure 4 As shown, the upper end of the clamping member 6 is also provided with a sealing plate 64 which is fitted with the wedge-shaped groove 51. During the process of tensile testing on the steel bars, the steel bars are broken or waste chips are generated. These waste chips will fall downward and fall into the interior of the lower clamp 2. By providing the sealing plate 64, the sealing between the sealing plate 64 and the bearing member 5 can be ensured, thereby preventing waste chips from falling between the sealing plate 64 and the bearing member 5, thereby ensuring the normal use of the lower clamp 2.

[0045] Embodiment 2 The components that are the same or corresponding to those in the first embodiment are marked with the same reference numerals as those in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that: Further, if Fig. 9 As shown, the driving mechanism 4 includes two groups of hydraulic driving units 41 arranged inside the frame 1, lifting columns 42 connected to the hydraulic driving units 41, and a lifting frame 43 arranged between the two groups of lifting columns 42; the upper clamp 3 is fixedly arranged inside the lifting frame 43. When in use, the two groups of hydraulic driving units 41 work simultaneously and drive the two groups of lifting columns 42 to rise and fall, thereby driving the lifting frame 43 and the upper clamp 3 to rise and fall.

[0046] It should be noted that a lower pressure plate 9 is fixedly provided on the upper end of the lifting frame 43, and an upper pressure plate 10 matching the lower pressure plate 9 is fixedly provided on the top of the frame 1 at a position corresponding to the lower pressure plate 9. In addition to conducting tests such as tensile testing on steel bars, the test equipment can also place the product to be tested on the upper end of the upper pressure plate 10, and then drive the lifting frame 43 to rise under the drive of the hydraulic drive unit 41, thereby driving the lower pressure plate 9 to rise. The lower pressure plate 9 and the upper pressure plate 10 gradually approach and squeeze the product to be tested, thereby achieving a pressure resistance test on the product to be tested, enriching the use scenarios of the test equipment.

[0047] Working process: First, the operator selects a suitable clamping member 6 according to the diameter of the steel bar, and then manually adjusts the spacing between the multiple main clamping plates 613 in the clamping member 6 according to the spacing of the transverse ribs of the steel bar; After the spacing between the main clamping plates 613 is adjusted, the clamping members 6 are installed inside the upper clamp 3 and the lower clamp 2 respectively; Subsequently, the lower end of the steel bar to be tested is placed between the two clamping members 6 in the lower clamp 2, and the lifting assembly 7 is controlled to work to complete the clamping of the lower end of the steel bar to be tested; Then, the two sets of hydraulic drive units 41 are controlled to work and drive the two sets of lifting columns 42 to descend, thereby driving the lifting frame 43 and the upper clamp 3 to descend until the upper end of the steel bar to be tested is located between the two clamping members 6 in the upper clamp 3, and then the lifting assembly 7 in the upper clamp 3 is controlled to work to complete the clamping of the upper end of the steel bar to be tested; Finally, the hydraulic drive unit 41 is controlled to work and drive the lifting frame 43 and the upper clamp 3 to rise, so that the tensile test can be performed on the steel bar to be tested.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test equipment for steel bar production detection, characterized in that: include: A frame (1), a lower clamp (2), an upper clamp (3), and a driving mechanism (4) for driving the upper clamp (3) to rise and fall, wherein the upper clamp (3) has the same structure as the lower clamp (2); The lower clamp (2) comprises: A bearing member (5) fixedly arranged on the frame (1) and having a wedge-shaped groove (51) formed therein; Clamping members (6) are arranged in two groups opposite to each other and are arranged inside the wedge-shaped groove (51); A lifting component (7) is arranged at the lower end of the bearing member (5) and cooperates with the clamping member (6); A main clamping unit (61) and a secondary clamping unit (62) are also provided inside the clamping member (6); after the two groups of clamping members (6) are brought close to each other and clamp the steel bar, the main clamping unit (61) clamps the steel bar body, and the secondary clamping unit (62) clamps the steel bar transverse rib.

2. A test equipment for steel bar production detection according to claim 1, characterized in that: The main clamping unit (61) comprises: A sliding rod (611) fixedly arranged inside the clamping member (6); Slide blocks (612), which are provided in a plurality of groups and are slidably disposed on the slide bar (611); A main clamping plate (613) fixedly disposed on one end of the sliding block (612); A connecting rod member (614), wherein each of the sliders (612) is provided with a connecting rod member (614) at a position away from the main clamping plate (613), and multiple groups of the connecting rod members (614) interconnect the multiple sliders (612) in a transmission manner; A driving plate (615) fixedly connected to the sliding block (612) at one end thereof; A driving member (616) is rotatably disposed on the clamping member (6) and one end of which is threadedly disposed with the driving plate (615).

3. A test equipment for steel bar production detection according to claim 2, characterized in that: The sliding block (612) located in the middle is fixedly arranged inside the clamping member (6) via a fixing block (617).

4. A test equipment for steel bar production detection according to claim 2, characterized in that: The auxiliary clamping unit (62) is fixedly arranged inside the clamping member (6) and is arranged in contact with the back surface of the main clamping plate (613). The auxiliary clamping unit (62) is provided with a through slot (621) at a position corresponding to the sliding block (612).

5. A test equipment for steel bar production detection according to claim 4, characterized in that: A buffer unit (8) is fixedly arranged on one side of the auxiliary clamping unit (62) close to the main clamping plate (613), and the buffer unit (8) comprises a first buffer layer (81) arranged in contact with the auxiliary clamping unit (62), a reinforcement layer (82) arranged on the outside of the first buffer layer (81), a second buffer layer (83) arranged on the outside of the reinforcement layer (82), and a wear-resistant layer (84) arranged on the outside of the second buffer layer (83).

6. A test equipment for steel bar production detection according to claim 5, characterized in that: A plurality of anti-slip protrusions (85) are arranged on the outer side of the wear-resistant layer (84).

7. A test equipment for steel bar production detection according to claim 1, characterized in that: The lifting assembly (7) comprises: A lifting unit (71) fixedly arranged inside the frame (1); A driving rod (72) which is drivingly connected to the lifting unit (71) and has a lifting plate (73) fixedly disposed on its upper end; The clamping member (6) is provided with a limiting groove (63) at a position corresponding to the lifting plate (73).

8. A test equipment for steel bar production detection according to claim 7, characterized in that: The upper end of the clamping member (6) is also provided with a sealing plate (64) which is arranged to fit the wedge-shaped groove (51).

9. A test equipment for steel bar production detection according to claim 1, characterized in that: The driving mechanism (4) comprises two groups of hydraulic driving units (41) arranged inside the frame (1), lifting columns (42) connected to the hydraulic driving units (41), and a lifting frame (43) arranged between the two groups of lifting columns (42); The upper clamp (3) is fixedly arranged inside the lifting frame (43).

10. A test equipment for steel bar production detection according to claim 9, characterized in that: A lower pressing plate (9) is fixedly provided at the upper end of the lifting frame (43), and an upper pressing plate (10) matching with the lower pressing plate (9) is fixedly provided at the top of the frame (1) at a position corresponding to the lower pressing plate (9).

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