A tempering device for spring production

Abstract

The utility model relates to spring processing technical field, concretely relates to a tempering device for spring production, include: tempering furnace body and electric heating rod, the opening both sides of tempering furnace body are hinged and are connected with the furnace door respectively, and the inner chamber of tempering furnace body is vertically connected with the rotary type suspension mechanism, the rotary type suspension mechanism includes rotatable screw rod axle assembly and a plurality of helical connection ring suspension subassembly on screw rod axle assembly, and the top of ring suspension subassembly is equipped with locking assembly respectively, and locking assembly is helical connection with screw rod axle assembly, is suitable for preventing corresponding ring suspension subassembly relative screw rod axle assembly rotation, ring suspension subassembly includes annular fixed frame spare, and the outer circle of annular fixed frame spare is equipped with annular T groove, and a plurality of length adjustable spring suspension rod spare are equipped with in annular T groove interval, and spring suspension rod spare passes through annular T groove and extends downwards. The utility model has the advantages of reasonable structure, enhanced the convenience of operation, improved the space utilization rate in the tempering furnace body.

Description

Technical Field

[0001] This utility model relates to the field of spring processing technology, and in particular to a tempering device for spring production. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. Made of elastic material, it deforms under external force and returns to its original shape after the force is removed. During spring manufacturing, quenching is necessary to improve the strength and hardness of the material. After quenching, the spring is in a high-stress state and is relatively brittle, requiring timely tempering. A tempering device is needed in this tempering process. Publication number CN214496400U discloses a tempering device for spring production, including a tempering furnace body. A motor frame is installed at the bottom of the tempering furnace body, and a motor is fixedly installed inside the motor frame. A rotating rod is driven and installed at the top of the motor, and the rotating rod is placed inside the tempering furnace body. Multiple sets of sleeves are fitted onto the rotating rod. Support rods are installed around each sleeve, and hanging rings are installed at the bottom of the support rods. Bolts are inserted into the front side of the sleeves, and multiple sets of screw holes are opened on the front side of the rotating rod. The ends of the bolts are located within the screw holes and rotated for fixation. This utility model allows for the adjustment of the spacing between each set of support rods by moving the sleeve on the rotating rod. This spacing adjustment facilitates the tempering of springs of different lengths. When reprocessing shorter springs, more support rods can be installed, thereby increasing the number of springs that can be tempered at one time and greatly improving applicability.

[0003] The existing technical solutions mentioned above have the following drawbacks: workers manually operate the sleeve to move linearly on the rotating rod, and the bolt passing through the sleeve needs to be aligned with the corresponding screw hole before threaded connection, which increases the difficulty of operation. At the same time, the hanging rings are connected to the support rod and the spacing is constant, making it impossible to reasonably adjust the spacing between the hanging rings according to the outer diameter of the spring, thus reducing space utilization. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a tempering device for spring production, which enhances the convenience of operation and improves the space utilization rate inside the tempering furnace.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a tempering device for spring production is provided, comprising: a tempering furnace body and an electric heating rod passing through its inner cavity, furnace doors being hinged to the two sides of the opening of the tempering furnace body, and a rotating suspension mechanism being vertically connected to the inner cavity of the tempering furnace body.

[0006] The rotary suspension mechanism includes a rotatable lead screw assembly and several annular suspension assemblies helically connected to the lead screw assembly. Each annular suspension assembly is provided with a locking assembly above it. The locking assembly is helically connected to the lead screw assembly and is adapted to prevent the corresponding annular suspension assembly from rotating relative to the lead screw assembly.

[0007] The annular suspension assembly includes an annular fixing bracket. The outer circumference of the annular fixing bracket is provided with an annular T-shaped groove. Several spring suspension rods with adjustable lengths are spaced apart in the annular T-shaped groove. The spring suspension rods pass through the annular T-shaped groove and extend downward.

[0008] By adopting the above technical solution, during use, the spring to be tempered is detachably connected to the spring suspension rod. The length of the spring suspension rod can be adjusted according to the spring's length, facilitating the fixing of springs of different lengths. Simultaneously, rotating the annular suspension assembly along the lead screw shaft assembly causes axial movement, changing the distance between adjacent annular suspension assemblies. This facilitates vertical fixing of springs of different lengths, improving the utilization rate of space within the tempering furnace. Operating the locking assembly ensures tight contact with the annular suspension assembly, preventing the corresponding annular suspension assembly from rotating relative to the lead screw shaft assembly, achieving the locking purpose. The distance between adjacent spring suspension rods can be adjusted according to the spring's outer diameter, fully utilizing the space within the tempering furnace and improving space utilization. The electric heating rod, connected to the power supply, generates heat, increasing the temperature within the tempering furnace and achieving the purpose of tempering the springs. The rotation of the lead screw shaft assembly drives the annular suspension assembly to rotate, causing the springs fixed on the spring suspension rods to rotate circumferentially, resulting in uniform heating of the springs and enhancing the tempering effect.

[0009] In a preferred embodiment, the present invention can be further configured such that: the lead screw assembly includes a vertically arranged lead screw body and circular seats rotatably connected to its two ends, the circular seats being connected to the inner wall of the tempering furnace body, and a motor being connected to the upper end of the lead screw body.

[0010] By adopting the above technical solution, the motor drives the lead screw to rotate, the lead screw drives the annular suspension assembly to rotate, and the annular suspension assembly drives the spring on the spring suspension rod to rotate, so that the spring is heated evenly and the tempering effect is enhanced.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the annular fixing bracket includes a nut seat and an annular seat disposed on its outer side; a plurality of connecting rods are connected in an annular array between the inner wall of the annular seat and the nut seat; the nut seat is helically connected to the lead screw body; the outer circular surface of the annular seat is provided with the annular T-groove; and fan blades are respectively connected to the connecting rods.

[0012] By adopting the above technical solution, since the nut seat is helically connected to the lead screw body, the lead screw body is fixed. The rotating ring seat drives the nut seat to rotate, thereby causing the ring fixing bracket to move along the axial direction of the lead screw body, which improves the convenience of adjusting the distance between adjacent helical connections in the lead screw shaft assembly.

[0013] In a preferred embodiment, the present invention can be further configured such that: the locking assembly includes a second nut seat and two rod-shaped handles symmetrically connected to its outer circumference; the second nut seat is helically connected to the lead screw body; and the second nut seat is tightly fitted with the first nut seat.

[0014] By adopting the above technical solution, after the height position of the annular suspension assembly is adjusted, the lead screw body is fixed, and the second nut seat is rotated by the rod-shaped handle, so that the second nut seat is tightly connected to the annular suspension assembly. This results in a large axial force between the annular suspension assembly, the second nut seat, and the lead screw body. Since the thread on the lead screw body has a certain angle, a frictional force is generated that prevents the annular suspension assembly and the second nut seat from rotating relative to the lead screw body, thus achieving the purpose of locking.

[0015] In a preferred embodiment, the present invention can be further configured as follows: the spring suspension rod includes an L-shaped screw and an internally threaded tube screwed to one end thereon; the other end of the L-shaped screw is connected to a limiting block located in an annular T-groove; the width of the limiting block is smaller than the opening width of the annular T-groove, and the length of the limiting block is larger than the opening width of the annular T-groove; rotating the L-shaped screw causes the limiting block to rotate within the annular T-groove; the lower end of the internally threaded tube has an opening groove, and a rectangular limiting rod is provided in the opening groove; a pin passing through the internally threaded tube and the rectangular limiting rod is also included; a nut is screwed onto the L-shaped screw, and the nut is connected to the end of the internally threaded tube; a circumferential limiting component is also included and fitted onto the L-shaped screw.

[0016] By adopting the above technical solution, the spring is sleeved on the outer circle of the internally threaded tube. The rectangular limiting rod is rotated to be perpendicular to the internally threaded tube. Under the action of gravity, the spring moves downward and contacts the rectangular limiting rod. The rectangular limiting rod has a limiting effect on the spring, that is, the spring suspension rod has a detachable connection effect on the spring. The L-shaped screw is placed horizontally, and the L-shaped screw is moved so that the limiting block enters the inner cavity of the annular T-slot. Under the action of gravity, the limiting block swings with the L-shaped screw to a vertical state. Since the length of the limiting block is greater than the opening width of the annular T-slot, it prevents the limiting block from detaching from the annular T-slot. Since the internally threaded tube and the L-shaped screw are threadedly connected, the vertical length of the spring suspension rod can be adjusted according to the length of the spring, so that springs of different lengths can be sleeved on the outside of the spring suspension rod, thus expanding the range of applications.

[0017] In a preferred embodiment, the present invention can be further configured such that: the circumferential limiting component includes a fixing plate and a wing bolt spirally inserted on the fixing plate; the fixing plate has a fixing hole; the L-shaped screw is inserted into the fixing hole and is fixedly connected; and the end of the wing bolt is in close contact with the outer circular surface of the annular suspension assembly.

[0018] By adopting the above technical solution, after the distance between adjacent spring suspension rods is adjusted, the wing bolt is rotated so that its end is in close contact with the outer circular surface of the annular suspension assembly, thereby achieving the purpose of circumferential limiting.

[0019] In a preferred embodiment, the present invention can be further configured such that a thermometer is mounted on the tempering furnace body.

[0020] By adopting the above technical solution and using a thermometer, the temperature inside the tempering furnace can be measured.

[0021] In a preferred embodiment, the present invention can be further configured such that a stop rod is connected to the lower outer circle of the lead screw body.

[0022] By adopting the above technical solution, the screw body can be prevented from rotating by operating the stop rod, which facilitates the axial movement of the ring suspension assembly during rotation and improves the convenience of adjusting the distance between adjacent ring suspension assemblies.

[0023] In summary, this utility model has at least one of the following beneficial technical effects:

[0024] 1. Since the annular suspension assembly and the lead screw assembly are connected by a helical connection, rotating the annular suspension assembly along the lead screw assembly causes the annular suspension assembly to move axially, thereby changing the distance between adjacent annular suspension assemblies. This facilitates the vertical fixing of springs of different lengths, improves the utilization rate of the space inside the tempering furnace, and enhances the convenience of operation.

[0025] 2. Based on the outer diameter of the spring, the distance between adjacent spring suspension rods can be adjusted along the circumference of the annular fixed frame, thereby making full use of the space inside the tempering furnace and improving space utilization. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0027] Figure 1This is a schematic diagram of a preferred embodiment of a tempering device for spring production according to this utility model.

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle ring suspension assembly.

[0029] Figure 3 yes Figure 2 A schematic diagram of the structure of the spring suspension rod.

[0030] In the diagram: 1. Tempering furnace body; 2. Electric heating rod; 3. Furnace door; 40. Lead screw shaft assembly; 50. Circular suspension assembly; 60. Locking assembly; 7. Thermometer; 8. Stop rod; 9. Support leg;

[0031] 41. Lead screw body; 42. Circular seat; 43. Motor;

[0032] 51. Circular fixing bracket; 52. Circular T-slot; 53. Spring suspension rod;

[0033] 511. Nut seat 1; 512. Ring seat; 513. Connecting rod; 514. Fan blade;

[0034] 531. L-shaped screw; 532. Internally threaded pipe; 533. Limiting block; 534. Opening slot; 535. Rectangular...

[0035] 536. Shaped limit rod; 537. Pin; 538. Circumferential limit component;

[0036] 5371. Fixing plate; 5372. Wing bolt; 5373. Fixing hole;

[0037] 61. Nut seat two; 62. Rod-shaped handle. Detailed Implementation

[0038] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0039] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0040] Reference Figures 1-3This utility model discloses a tempering device for spring production, comprising: a tempering furnace body 1 and an electric heating rod 2 passing through its inner cavity; furnace doors 3 are respectively hinged to the two sides of the opening of the tempering furnace body 1, and the furnace doors 3 are connected to the tempering furnace body 1 by a shaft hinge; a rotating suspension mechanism is vertically connected to the inner cavity of the tempering furnace body 1; a thermometer 7 is installed on the tempering furnace body 1; the electric heating rod 2 is connected to a power source and can generate heat to increase the internal temperature of the tempering furnace body 1; the temperature inside the tempering furnace body 1 can be measured by using the thermometer 7.

[0041] The rotating suspension mechanism includes a rotatable lead screw assembly 40 and several annular suspension assemblies 50 helically connected to the lead screw assembly 40. Each annular suspension assembly 50 is provided with a locking assembly 60 above it. The locking assembly 60 is helically connected to the lead screw assembly 40 and is adapted to prevent the corresponding annular suspension assembly 50 from rotating relative to the lead screw assembly 40.

[0042] The annular suspension assembly 50 includes an annular fixing bracket 51. The outer circle of the annular fixing bracket 51 is provided with an annular T-shaped groove 52. Several spring suspension rods 53 with adjustable length are spaced apart in the annular T-shaped groove 52. The spring suspension rods 53 pass through the annular T-shaped groove 52 and extend downward.

[0043] The lead screw assembly 40 includes a vertically arranged lead screw body 41 and circular seats 42 rotatably connected to its two ends. The circular seats 42 are both connected to the inner wall of the tempering furnace body 1. A motor 43 is connected to the upper end of the lead screw body 41. The motor 43 drives the lead screw body 41 to rotate, and the lead screw body 41 drives the annular suspension assembly 50 to rotate. The annular suspension assembly 50 drives the spring on the spring suspension rod 53 to rotate, so that the spring is heated evenly and the tempering effect is enhanced.

[0044] The annular fixing bracket 51 includes a nut seat 511 and an annular seat 512 disposed on its outer side. A plurality of connecting rods 513 are connected in an annular array between the inner wall of the annular seat 512 and the nut seat 511. The nut seat 511 is helically connected to the lead screw body 41. The outer circular surface of the annular seat 512 is provided with the aforementioned annular T-groove 52. Fan blades 514 are respectively connected to the connecting rods 513. Since the nut seat 511 is helically connected to the lead screw body 41, the lead screw body 41 is fixed. Rotating the annular seat 512 drives the nut seat 511 to rotate, thereby causing the annular fixing bracket 51 to move along the axial direction of the lead screw body 41. This improves the convenience of adjusting the distance between adjacent helical connections in the lead screw shaft assembly 40. Through the use of the fan blades 514, the fan blades 514 drive the heat of the tempering furnace body 1 to flow rapidly, enhancing the uniformity of the spring heating.

[0045] The locking assembly 60 includes a second nut seat 61 and two rod-shaped handles 62 symmetrically connected to its outer circumference. The second nut seat 61 is helically connected to the lead screw body 41, and the second nut seat 61 is tightly fitted with the first nut seat 511. After the height position of the annular suspension assembly 50 is adjusted, the lead screw body 41 is fixed, and the second nut seat 61 is rotated by the rod-shaped handles 62, so that the second nut seat 61 is tightly connected to the annular suspension assembly 50. This results in a large axial force between the annular suspension assembly 50, the second nut seat 61 and the lead screw body 41. Since the thread on the lead screw body 41 has a certain angle, a frictional force is generated to prevent the annular suspension assembly 50 and the second nut seat 61 from rotating relative to the lead screw body 41, thereby achieving the purpose of locking.

[0046] The spring suspension rod 53 includes an L-shaped screw 531 and an internally threaded tube 532 screwed to one end. The other end of the L-shaped screw 531 is connected to a limiting block 533 located within an annular T-slot 52. The width of the limiting block 533 is smaller than the opening width of the annular T-slot 52, while the length is greater than the opening width of the annular T-slot 52. Rotating the L-shaped screw 531 causes the limiting block 533 to rotate within the annular T-slot 52. An opening slot 534 is provided at the lower end of the internally threaded tube 532, within which a rectangular limiting rod 535 is located. The spring suspension rod 536 passes through the internally threaded tube 532 and the rectangular limiting rod 535. A nut is screwed onto the L-shaped screw 531, and the nut is connected to the end of the internally threaded tube 532. A circumferential limiting component 537 is also fitted onto the L-shaped screw 531. The spring is fitted onto the outer circumference of the internally threaded tube 532, and then... Rotate the rectangular limiting rod 535 so that it is perpendicular to the internal threaded tube 532. Under the action of gravity, the spring moves downward and abuts against the rectangular limiting rod 535. The rectangular limiting rod 535 has a limiting effect on the spring. The spring suspension rod 53 provides a detachable connection for the spring. Place the L-shaped screw 531 horizontally and move the L-shaped screw 531 so that the limiting block 533 enters the inner cavity of the annular T-groove 52. Under the action of gravity, the limiting block 533 swings with the L-shaped screw 531 to a vertical state. Since the length of the limiting block 533 is greater than the opening width of the annular T-groove 52, it prevents the limiting block 533 from detaching from the annular T-groove 52. Since the internal threaded tube 532 and the L-shaped screw 531 are threadedly connected, the vertical length of the spring suspension rod 53 can be adjusted according to the length of the spring. This allows springs of different lengths to be fitted onto the outside of the spring suspension rod 53, expanding its application range.

[0047] The circumferential limiting component 537 includes a fixing plate 5371 and a wing bolt 5372 spirally inserted on the fixing plate 5371. The fixing plate 5371 is provided with a fixing hole 5373, and the L-shaped screw 531 is inserted into the fixing hole 5373 and is fixedly connected. The end of the wing bolt 5372 is in close contact with the outer circular surface of the annular suspension assembly 50. After the distance between adjacent spring suspension rods 53 is adjusted, the wing bolt 5372 is rotated so that its end is in close contact with the outer circular surface of the annular suspension assembly 50, thereby achieving the purpose of circumferential limiting.

[0048] A stop rod 8 is connected to the lower outer circle of the lead screw body 41; by operating the stop rod 8, the lead screw body 41 can be prevented from rotating, which facilitates the axial movement of the annular suspension assembly 50 during rotation and improves the convenience of adjusting the distance between adjacent annular suspension assemblies 50.

[0049] The bottom rectangular array of the tempering furnace body 1 is connected to several legs 9.

[0050] The implementation principle of this embodiment is as follows: During use, the spring to be tempered is detachably connected to the spring suspension rod 53, and the length of the spring suspension rod 53 is adjusted according to the length of the spring to facilitate the fixing of springs of different lengths. Simultaneously, the annular suspension assembly 50 is rotated along the lead screw shaft assembly 40, causing the annular suspension assembly 50 to move axially, thereby changing the distance between adjacent annular suspension assemblies 50. This facilitates the vertical fixing of springs of different lengths, improving the utilization rate of the space inside the tempering furnace body 1. The locking assembly 60 is operated to ensure tight contact with the annular suspension assembly 50. The corresponding annular suspension assembly 50 is prevented from rotating relative to the lead screw shaft assembly 40, thus achieving the purpose of locking. According to the outer diameter of the spring, the distance between adjacent spring suspension rods 53 can be adjusted, thereby making full use of the space inside the tempering furnace body 1 and improving the space utilization rate. After the electric heating rod 2 is connected to the power supply, it generates heat, thereby increasing the temperature inside the tempering furnace body 1 and achieving the purpose of tempering the spring. The rotation of the lead screw shaft assembly 40 drives the annular suspension assembly 50 to rotate, and the springs fixed on the spring suspension rods 53 rotate circumferentially, so that the springs are heated evenly and the tempering effect is enhanced.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tempering apparatus for spring production, comprising: The tempering furnace body (1) and the electric heating rod (2) passing through its inner cavity, wherein the two sides of the opening of the tempering furnace body (1) are respectively hinged to furnace doors (3), characterized in that the inner cavity of the tempering furnace body (1) is vertically connected to a rotating suspension mechanism. The rotating suspension mechanism includes a rotatable lead screw assembly (40) and several annular suspension assemblies (50) helically connected to the lead screw assembly (40). Each annular suspension assembly (50) is provided with a locking assembly (60) above it. The locking assembly (60) is helically connected to the lead screw assembly (40) and is adapted to prevent the corresponding annular suspension assembly (50) from rotating relative to the lead screw assembly (40). The annular suspension assembly (50) includes an annular fixing bracket (51), the outer circle of which is provided with an annular T-groove (52), and a plurality of spring suspension rods (53) of adjustable length are provided in the annular T-groove (52), the spring suspension rods (53) passing through the annular T-groove (52) and extending downward.

2. The tempering apparatus for spring production according to claim 1, characterized in that, The lead screw assembly (40) includes a vertically arranged lead screw body (41) and circular seats (42) rotatably connected to its two ends. The circular seats (42) are all connected to the inner wall of the tempering furnace body (1). A motor (43) is connected to the upper end of the lead screw body (41).

3. The tempering apparatus for spring production according to claim 2, characterized in that, The annular fixing bracket (51) includes a nut seat (511) and an annular seat (512) disposed on its outer side. A plurality of connecting rods (513) are connected in annular array between the inner wall of the annular seat (512) and the nut seat (511). The nut seat (511) is spirally connected to the lead screw body (41). The outer circular surface of the annular seat (512) is provided with the annular T-groove (52). Fan blades (514) are respectively connected to the connecting rods (513).

4. The tempering apparatus for spring production according to claim 3, characterized in that, The locking assembly (60) includes a second nut seat (61) and two rod-shaped handles (62) symmetrically connected to its outer circle. The second nut seat (61) is spirally connected to the lead screw body (41), and the second nut seat (61) is tightly fitted with the first nut seat (511).

5. The tempering apparatus for spring production according to claim 1, characterized in that, The spring suspension rod (53) includes an L-shaped screw (531) and an internally threaded tube (532) screwed to one end. The other end of the L-shaped screw (531) is connected to a limiting block (533) located in an annular T-slot (52). The width of the limiting block (533) is smaller than the opening width of the annular T-slot (52), and the length of the limiting block (533) is larger than the opening width of the annular T-slot (52). Rotating the L-shaped screw (531) drives the limiting block (533). Rotatable within an annular T-groove (52), the lower end of the internally threaded tube (532) is provided with an opening groove (534), a rectangular limiting rod (535) is provided in the opening groove (534), and a pin (536) passing through the internally threaded tube (532) and the rectangular limiting rod (535) is also included. A nut is screwed onto the L-shaped screw (531), and the nut is connected to the end of the internally threaded tube (532). It also includes a circumferential limiting component (537) fitted onto the L-shaped screw (531).

6. The tempering apparatus for spring production according to claim 5, characterized in that, The circumferential limiting component (537) includes a fixing plate (5371) and a wing bolt (5372) spirally inserted on the fixing plate (5371). The fixing plate (5371) is provided with a fixing hole (5373). The L-shaped screw (531) is inserted into the fixing hole (5373) and is fixedly connected. The end of the wing bolt (5372) is in close contact with the outer circular surface of the annular suspension assembly (50).

7. The tempering apparatus for spring production according to claim 1, characterized in that, A thermometer (7) is installed on the tempering furnace body (1).

8. The tempering apparatus for spring production according to claim 2, characterized in that, The lower outer circle of the lead screw body (41) is connected to a stop rod (8).

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