Rack hardness detection equipment for rack processing

Abstract

The invention discloses rack hardness detection equipment for rack machining, and belongs to the technical field of rack hardness detection.The rack hardness detection equipment comprises a workbench, a supporting strip, a pushing mechanism, a tooth limiting mechanism and a strip rod adjusting mechanism, supporting legs are installed on the lower surface of the workbench, and a mounting frame is fixedly connected to the rear position of the upper surface of the workbench; an air cylinder is installed on the lower surface of the upper end of the installation frame, the lower end of the air cylinder is connected with a lower pressing plate, conical blocks are distributed on the lower surface of the lower pressing plate and used for detecting the hardness of the rack, an installation strip is fixedly connected to the front position of the upper surface of the workbench, and follow-up rods are evenly arranged on the installation strip. According to the rack hardness detection equipment, racks can be stably clamped through one-step operation, previous tedious operation is avoided, in addition, racks of different models can be clamped on the hardness detection equipment through simple adjustment, and therefore the hardness detection equipment can detect the racks of different models.

Description

Technical Field

[0001] The invention relates to the technical field of rack machining hardness detection, in particular to a rack hardness detection device used for rack machining. Background Art

[0002] Racks are commonly used transmission components in modern machinery. They are widely used in various mechanical equipment such as machine tools, automobiles, ships, aerospace, etc. Their quality and performance directly affect the transmission accuracy, efficiency and reliability of the mechanical system. Therefore, it is very important to accurately test the performance indicators of racks, and hardness is one of the key indicators to measure the quality of racks. The rack hardness testing equipment for rack processing is a mechanical equipment that replaces manual testing of rack hardness, which solves the problems of low efficiency and low detection accuracy of manual testing of racks; The existing rack hardness testing equipment for rack processing still has the following technical problems when used, such as: 1. The existing rack hardness testing equipment for rack processing cannot quickly clamp and fix the rack when in use, which reduces the efficiency of the test; 2. The existing rack hardness testing equipment for rack processing cannot be adjusted according to the rack model when in use, which leads to certain limitations when testing the rack; Therefore, a rack hardness detection device for rack processing is needed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a rack hardness testing device for rack processing, so as to solve the problem in the above background technology that the existing rack hardness testing device for rack processing can quickly clamp the rack and can clamp racks of different models.

[0004] To achieve the above object, the present invention provides the following technical solutions: 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

[0005] Preferably, the mounting frame and the bar adjustment mechanism are coaxial, and the mounting frame is L-shaped.

[0006] Preferably, the bar adjustment mechanism includes a limit bar, a sliding groove and an adjusting screw. The sliding groove is arranged on the upper surface of the workbench, and the limit bar is slidably connected in the sliding groove. The limit bar is threaded with an adjusting screw, and one end of the adjusting screw is connected to one side of the sliding groove, and the other end of the adjusting screw is connected to the rear side of the workbench.

[0007] Preferably, the limiting strip is L-shaped, and the middle plane thereof is coplanar with the upper surface of the workbench.

[0008] Preferably, the axis of the adjusting screw is located on the axial plane of the mounting bracket.

[0009] Preferably, the pushing mechanism includes a limit frame, a toggle rod, a support block, a toggle block, a support tube, a support rod and a spring. The support block is fixedly connected to the upper surface of the workbench in front of the mounting bar, and a support tube is axially connected between the support block and the upper surface of the workbench, the open end of the support tube movably extends into one end of the support rod, and a spring is arranged between the support rod and the inner side of the support tube, the other end of the support rod is axially connected to the toggle rod, and the two ends of the toggle rod are movably passed through two limit frames respectively, the limit frame is fixedly connected to the upper surface of the workbench, toggle blocks are distributed at equal angles on the toggle rod, and the toggle block is contacted and connected with the other end of the follow-up rod in a one-to-one corresponding manner, and the other end of the follow-up rod is arranged as a smooth sphere to facilitate smooth relative sliding between it and the toggle block.

[0010] Preferably, the toggle block is in the shape of a right-angled triangular prism, and the hypotenuse of the toggle block is in contact and connected with the other end of the follower rod.

[0011] Preferably, the tooth limiting mechanism includes a slide groove, limiting teeth, a piston rod 1, a piston tube 1, a spring 2, a piston tube 2, a piston rod 2, a piston tube 3, a positioning strip, a slider, a limiting tooth plate, a piston rod 3, a piston chamber and a piston rod 4. The slide groove is arranged on the side of the support strip facing the mounting frame, and the slide groove is densely covered with limiting teeth. A slider is slidably connected in the slide groove, and an end of the piston rod 1 is coaxially connected to the outer side of the slider. The other end of the piston rod 1 is seamlessly slidably connected to the inner side of one end of the piston tube 1, and a spring 2 is arranged between the inner bottom end of the piston tube 1 and the other end of the piston rod 1. A piston tube 2 is arranged on the outer side of the piston tube 1 and is connected to the inner bottom end thereof. The upper end of the piston tube 2 is threadedly connected to the piston rod 2, and the lower end of the piston rod 2 slides seamlessly with the inner side of the piston tube 2 The piston rod 2 is connected, and the rod part and the disk part on the piston rod 2 are bearing-connected. The inner bottom end of the piston tube 2 is also connected with a piston tube 3, and the two ends of the piston tube 3 are seamlessly slidably connected with one end of the two piston rods 3 respectively. The other end of the piston rod 3 is axially connected to the side of the corresponding positioning strip. A piston cavity is arranged inside the slider, and the piston cavity is connected with the piston tube 1 through the piston rod 1. One end of the piston rod 4 is seamlessly slidably connected in the piston cavity, and the other end of the piston rod 4 can be movably passed through to the outside of the slider, and the other end of the piston rod 4 is coaxially connected with a limiting tooth plate, the limiting tooth plate is arranged toward the limiting teeth, and the limiting tooth plate and the limiting teeth do not contact in a natural state, so as to ensure that the slider can slide in the slide groove. In addition, the slide groove is a cross-shaped structure to prevent the slider from falling out of the slide groove.

[0012] Preferably, the piston rod 1 is provided with through holes with two ends penetrating therethrough, and the piston cavity is connected to the piston tube 1 through the through hole on the piston rod 1.

[0013] Preferably, the piston rod 4 is composed of a rod structure and a disc structure, and the rod structure and the slot hole on the slider through which the rod structure passes are prismatic structures that match each other.

[0014] Compared with the prior art, the invention has the following beneficial effects: the rack hardness testing device for rack processing can stably clamp the rack through one-step operation, avoiding the cumbersome operation in the past; in addition, racks of different models can be clamped on the hardness testing device through simple adjustment, so that the hardness testing device can test racks of different models: 1. By pushing the toggle rod, the toggle block squeezes the follower rod, and then the support bar moves in the direction of the limit bar, and then the positioning bar is used to position the teeth on the rack by using the piston rod 1, piston tube 1, piston tube 3 and piston rod 3 on the tooth limit mechanism, so that the rack can be quickly fixed on the hardness testing equipment, thereby improving the efficiency of the test; 2. By rotating the piston rod 2, the content of the gas entering the piston tube 3 can be adjusted, and then the expansion and contraction amount of the two positioning strips in the same group can be adjusted, so that the two positioning strips in the same group can position the teeth on racks of different models; 3. The position of the limit bar can be adjusted by rotating the screw rod so that the detection position of different types of racks can be located below the lower pressure plate, which is convenient for effectively detecting the rack when the lower pressure plate moves downward under the action of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A; Figure 4 This is a schematic diagram of the connection structure of the limit tooth plate and the positioning strip of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the cross-section structure; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of point B in the middle; Figure 8 For the present invention Figure 6 The schematic diagram of the enlarged structure of point C in the middle; Fig. 9 It is a rear view structural schematic diagram of the present invention.

[0016] In the figure: 1. workbench; 2. supporting leg; 3. mounting frame; 4. lower pressure plate; 5. limiting strip; 6. sliding groove; 7. adjusting screw rod; 8. mounting strip; 9. limiting frame; 10. toggle rod; 11. supporting block; 12. cylinder; 13. toggle block; 14. supporting strip; 15. follower rod; 16. spring one; 17. sliding groove; 18. limiting teeth; 19. piston rod one; 20. piston tube one; 21. spring two; 22. piston tube two; 23. piston rod two; 24. piston tube three; 25. positioning strip; 26. sliding block; 27. limiting teeth plate; 28. piston rod three; 29. ​​piston chamber; 30. piston rod four; 31. supporting tube; 32. support rod; 33. spring three. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 9 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that the process of fixing the rack in the previous rack hardness testing equipment is relatively cumbersome, resulting in low efficiency, the following technical solution is provided, specifically, A rack hardness testing device for rack processing, comprising a workbench 1, a support bar 14, a pushing mechanism, a tooth limiting mechanism and a bar adjusting mechanism, a supporting leg 2 is installed on the lower surface of the workbench 1, and a mounting frame 3 is fixedly connected to the upper surface of the workbench 1 at a rear position, a cylinder 12 is installed on the lower surface of the upper end of the mounting frame 3, and a lower pressure plate 4 is connected to the lower end of the cylinder 12, and conical blocks are distributed on the lower surface of the lower pressure plate 4 for hardness testing of the rack, a mounting bar 8 is fixedly connected to the upper surface of the workbench 1 at a front position, and follower rods 15 are evenly arranged on the mounting bar 8, the follower rods 15 are movably arranged through the mounting bar 8, and one end of all the follower rods 15 facing the mounting frame 3 is connected to the supporting bar 14, and the other ends of all the follower rods 15 are contact-connected to the pushing mechanism, and the outer side of each follower rod 15 is provided with a spring 16 whose two ends are respectively connected to the mounting bar 8 and the support bar 14.

[0019] The pushing mechanism includes a limit frame 9, a toggle rod 10, a support block 11, a toggle block 13, a support tube 31, a support rod 32 and a spring 33. The support block 11 is fixedly connected to the upper surface of the workbench 1 in front of the mounting bar 8, and the support tube 31 is axially connected between the support block 11 and the upper surface of the workbench 1. The open end of the support tube 31 movably extends into one end of the support rod 32, and a spring 33 is arranged between the support rod 32 and the inner side of the support tube 31. The other end of the support rod 32 is axially connected to the toggle rod 10, and the two ends of the toggle rod 10 are respectively movably penetrated through the two limit frames 9, and the limit frames 9 are fixedly connected On the upper surface of the workbench 1, there are toggle blocks 13 distributed at equal angles on the toggle rod 10, and the toggle blocks 13 are contact-connected with the other ends of the follower rod 15 in a one-to-one corresponding manner. The other end of the follower rod 15 is set as a smooth sphere to facilitate smooth relative sliding between it and the toggle block 13. When fixing the rack, it is only necessary to push the toggle rod 10 so that the toggle block 13 on the toggle rod 10 squeezes the follower rod 15, so that the follower rod 15 drives the support bar 14 to move synchronously. After that, the tooth limiting mechanism can not only quickly limit and fix the teeth of the rack, but also limit and fix the racks of racks of different models.

[0020] Embodiment 2: In order to solve the problem that the previous rack hardness detection device is not convenient for fixing racks of different models, the following technical solution is provided. Specifically, a tooth limiting mechanism is provided on the support bar 14, and the tooth limiting mechanism corresponds to the bar adjustment mechanism. The bar adjustment mechanism is arranged on the upper surface of the workbench 1 near the mounting frame 3.

[0021] The mounting frame 3 and the bar adjustment mechanism are coaxial, and the mounting frame 3 is L-shaped. The bar adjustment mechanism includes a limit bar 5, a sliding groove 6 and an adjusting screw 7. The sliding groove 6 is arranged on the upper surface of the workbench 1, and the limit bar 5 is slidably connected in the sliding groove 6. The limit bar 5 is threaded with an adjusting screw 7, and one end of the adjusting screw 7 is connected to one side of the sliding groove 6, and the other end of the adjusting screw 7 is passed through the rear side of the workbench 1. The limit bar 5 is L-shaped, and its middle plane is coplanar with the upper surface of the workbench 1. The axis of the adjusting screw 7 is on the axial plane of the mounting frame 3. The toggle block 13 is a right-angled triangular prism, and the hypotenuse of the toggle block 13 is in contact with the other end of the follower rod 15. The position of the limit bar 5 can be adjusted by rotating the adjusting screw 7 to ensure The rack is located below the lower pressure plate 4, so that the lower pressure plate 4 can effectively detect the hardness of the rack. The tooth limiting mechanism includes a slide groove 17, a limiting tooth 18, a piston rod 19, a piston tube 20, a spring 21, a piston tube 22, a piston rod 23, a piston tube 3 24, a positioning strip 25, a slider 26, a limiting tooth plate 27, a piston rod 3 28, a piston cavity 29 and a piston rod 4 30. The slide groove 17 is arranged on the side of the support strip 14 facing the mounting frame 3, and the slide groove 17 is densely covered with limiting teeth 18. A slider 26 is slidably connected in the slide groove 17, and the outer side surface of the slider 26 is coaxially connected to one end of the piston rod 19. The other end of the piston rod 19 is seamlessly slidably connected to the inner side of one end of the piston tube 20, and the inner bottom of the piston tube 20 A spring 21 is provided between the end and the other end of the piston rod 19, a piston tube 22 is provided on the outer side of the piston tube 20 and is connected with the inner bottom end thereof, and the upper end of the piston tube 22 is threadedly connected with a piston rod 23, the lower end of the piston rod 23 is seamlessly slidably connected with the inner side of the piston tube 22, and the rod part and the disc part on the piston rod 23 are bearing-connected, a piston tube 3 24 is also connected through the inner bottom end of the piston tube 22, and the two ends of the piston tube 3 24 are seamlessly slidably connected with one end of two piston rods 3 28 respectively, the other end of the piston rod 3 28 is axially connected to the side of the corresponding positioning strip 25, a piston cavity 29 is provided inside the slider 26, and the piston cavity 29 is connected with the piston tube 20 through the piston rod 19, and the piston cavity 29 is One end of the piston rod 430 is seamlessly slidably connected, and the other end of the piston rod 430 is movable and penetrates to the outside of the slider 26, and the other end of the piston rod 430 is coaxially connected to the limit tooth plate 27, the limit tooth plate 27 is set towards the limit tooth 18, and the limit tooth plate 27 and the limit tooth 18 are not in contact in a natural state, ensuring that the slider 26 can slide in the slide groove 17. In addition, the slide groove 17 is a cross-shaped structure to prevent the slider 26 from escaping from the slide groove 17. In the process of the support bar 14 moving with the follower rod 15, the positioning bar 25 will gradually approach the gap between the teeth on the rack. When the positioning bar 25 is against the gap between the teeth, the support bar 14 continues to move forward, so that the two positioning bars 25 in the same group can be unfolded, thereby positioning the rack.By rotating the piston rod 23 and adjusting the relative position between the piston rod 23 and the piston tube 22, the content of the gas entering the piston tube 3 24 can be adjusted, and then the degree of expansion of the support bar 14 can be adjusted, so that different types of racks can be positioned. In addition, the gas in the piston tube 1 20 will also enter the piston cavity 29, so that the limit tooth plate 27 can be engaged with the limit tooth 18 at the corresponding position, thereby fixing the position of the slider 26. When the position of the slider 26 is not fixed, the slider 26 slides in the slide groove 17, which facilitates the automatic movement of the positioning bar 25 according to the tooth pitch of the tooth on the rack, thereby helping to fix the rack. The piston rod 1 19 is provided with a through hole at both ends, and the piston cavity 29 is connected to the piston tube 1 20 through the through hole on the piston rod 19. The piston rod 4 30 is composed of a rod structure and a disk structure, and the rod structure and the slot hole on the slider 26 for the rod structure to pass through are mutually matching prismatic structures.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rack hardness testing device for rack processing, comprising a workbench (1), a support bar (14), a pushing mechanism, a tooth limit mechanism and a bar adjustment mechanism, characterized in that: The lower surface of the workbench (1) is installed with a supporting leg (2), and the upper surface of the workbench (1) is fixedly connected to a mounting frame (3) at a rear position, the lower surface of the upper end of the mounting frame (3) is installed with a cylinder (12), and the lower end of the cylinder (12) is connected to a lower pressure plate (4), and the lower surface of the lower pressure plate (4) is distributed with a conical block for performing hardness testing on the rack, the upper surface of the workbench (1) is fixedly connected to a mounting strip (8) at a front position, and follower rods (15) are evenly arranged on the mounting strip (8), and the follower rods (15) are movable through A mounting strip (8) is provided, and one end of all follower rods (15) facing the mounting frame (3) is connected to the support strip (14), and the other ends of all the follower rods (15) are contact-connected to the pushing mechanism, and a spring (16) is provided on the outer side of each follower rod (15), the two ends of which are respectively connected to the mounting strip (8) and the support strip (14), and a tooth limit mechanism is provided on the support strip (14), and the tooth limit mechanism corresponds to the bar adjustment mechanism, and the bar adjustment mechanism is provided on the upper surface of the workbench (1) at a position close to the mounting frame (3).

2. The rack hardness testing device for rack processing according to claim 1 is characterized in that: The mounting frame (3) and the bar adjustment mechanism are coaxial, and the mounting frame (3) is L-shaped.

3. The rack hardness testing device for rack processing according to claim 2 is characterized in that: The bar adjustment mechanism comprises a limit bar (5), a sliding groove (6) and an adjustment screw (7); the sliding groove (6) is arranged on the upper surface of the workbench (1), and the limit bar (5) is slidably connected in the sliding groove (6); the adjustment screw (7) is threadedly penetrated by a thread on the limit bar (5), and a bearing at one end of the adjustment screw (7) is connected to one side of the sliding groove (6), and a bearing at the other end of the adjustment screw (7) penetrates the rear side of the workbench (1).

4. The rack hardness testing device for rack processing according to claim 3 is characterized in that: The limiting strip (5) is L-shaped, and its middle plane is coplanar with the upper surface of the workbench (1).

5. The rack hardness testing device for rack processing according to claim 4 is characterized in that: The axis of the adjusting screw rod (7) is located on the axial surface of the mounting frame (3).

6. The rack hardness testing device for rack processing according to claim 5, characterized in that: The pushing mechanism comprises a limit frame (9), a toggle rod (10), a support block (11), a toggle block (13), a support tube (31), a support rod (32) and a spring (33); the support block (11) is fixedly connected to the upper surface of the workbench (1) in front of the mounting bar (8); a support tube (31) is axially connected between the support block (11) and the upper surface of the workbench (1); an open end of the support tube (31) is movably extended into one end of the support rod (32); and a spring (33) is provided between the support rod (32) and the inner side of the support tube (31). A spring three (33) is arranged, the other end of the support rod (32) is axially connected to the toggle rod (10), and the two ends of the toggle rod (10) are respectively movably penetrated through two limit frames (9), the limit frames (9) are fixedly connected to the upper surface of the workbench (1), the toggle rod (10) is provided with toggle blocks (13) distributed at equal angles, and the toggle blocks (13) are contact-connected with the other end of the follower rod (15) in a one-to-one corresponding manner, and the other end of the follower rod (15) is arranged as a smooth sphere to facilitate smooth relative sliding between it and the toggle block (13).

7. The rack hardness testing device for rack processing according to claim 6, characterized in that: The toggle block (13) is in the shape of a right-angled triangular prism, and the hypotenuse of the toggle block (13) is in contact with and connected to the other end of the follower rod (15).

8. The rack hardness testing device for rack processing according to claim 7, characterized in that: The tooth limit mechanism comprises a slide groove (17), limit teeth (18), a piston rod 1 (19), a piston tube 1 (20), a spring 2 (21), a piston tube 2 (22), a piston rod 2 (23), a piston tube 3 (24), a positioning strip (25), a slider (26), a limit tooth plate (27), a piston rod 3 (28), a piston cavity (29) and a piston rod 4 (30), wherein the slide groove (17) is arranged on a side of the support strip (14) facing the mounting frame (3), and the limit teeth (18) are densely distributed in the slide groove (17), and the slide groove (17) has a plurality of limit teeth (18) in the slide groove (17). The piston tube (20) is movably connected to a slider (26), and the outer side surface of the slider (26) is coaxially connected to one end of a piston rod (19), the other end of the piston rod (19) is seamlessly slidably connected to the inner side of one end of a piston tube (20), and a spring (21) is arranged between the inner bottom end of the piston tube (20) and the other end of the piston rod (19), the outer side of the piston tube (20) is provided with a piston tube (22) which is connected to the inner bottom end thereof, and the upper end of the piston tube (22) is threadedly connected to a piston rod (23), and the lower end of the piston rod (23) is screwed to the piston tube (20). The inner side of the piston tube (22) is seamlessly slidably connected, and the rod part and the disk part on the piston rod second (23) are bearing-connected. The inner bottom end of the piston tube second (22) is also connected with the piston tube third (24), and the two ends of the piston tube third (24) are seamlessly slidably connected with one end of the two piston rods three (28), respectively. The other end of the piston rod three (28) is axially connected to the side of the corresponding positioning strip (25). The slider (26) is provided with a piston cavity (29), and the piston cavity (29) is connected with the piston tube first (20) through the piston rod first (19). One end of a piston rod (30) is seamlessly slidably connected in the piston cavity (29), and the other end of the piston rod (30) is movable and penetrates to the outside of the slider (26), and the other end of the piston rod (30) is coaxially connected to a limit tooth plate (27), wherein the limit tooth plate (27) is arranged toward the limit tooth (18), and the limit tooth plate (27) and the limit tooth (18) do not contact each other in a natural state, thereby ensuring that the slider (26) can slide in the slide groove (17). In addition, the slide groove (17) is a cross-shaped structure, thereby preventing the slider (26) from falling off the slide groove (17).

9. The rack hardness testing device for rack processing according to claim 8, characterized in that: The piston rod 1 (19) is provided with through holes at both ends, and the piston chamber (29) is connected to the piston tube 1 (20) through the through hole on the piston rod 1 (19).

10. The rack hardness testing device for rack processing according to claim 9, characterized in that: The piston rod four (30) is composed of a rod structure and a disc structure, and the rod structure and the slot hole on the slider (26) through which the rod structure passes are mutually matching prismatic structures.

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