Workpiece turntable device for center plate induction quenching equipment

Abstract

The utility model relates to the field of center plate part heat treatment devices, in particular to a workpiece turntable device for center plate induction quenching equipment, which comprises a mounting bracket, a main shaft mounting component, a main shaft assembly, a top mandrel, a mandrel sleeve, a retaining spring, a spring support and an air inlet nozzle, the outer side of the spindle installation component is installed on the installation support through an installation bolt, the spindle assembly is installed on the spindle installation component through a bearing, a spring support is installed on the top of the spindle assembly and fixedly connected with the spindle assembly, and a working cavity is formed in the mandrel sleeve. According to the utility model, the mandrel part in the turntable female die can be quickly ejected out through the cooperative operation of components such as the ejector mandrel, the mandrel sleeve, the retaining spring, the spring support, the air inlet nozzle and the turntable female die, so that the heat treatment operation efficiency of the mandrel part is ensured.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment equipment for mandrel parts, and in particular to a workpiece turntable device for induction hardening equipment for mandrel parts. Background Technology

[0002] The center plate is a key component of a vehicle, installed on the center beam of a truck body. Its functions include: 1) bearing the weight of the vehicle body; 2) transmitting traction and braking forces during vehicle movement; and 3) enabling steering by the relative rotation of the upper and lower center plates in curves. To increase the strength of the center plate, it needs to be quenched in an induction hardening equipment during production. In practice, the center plate is placed on a turntable within the hardening equipment for rotational heating. After heating, it needs to be removed from the turntable die. Due to thermal expansion, the heated center plate increases in volume and tends to adhere to the turntable die, making it difficult to remove and affecting production operations. Utility Model Content

[0003] The purpose of this utility model is to provide a workpiece turntable device for a mandrel induction hardening equipment. Its overall structure is scientifically designed. During use, the mandrel part located in the turntable die can be easily ejected from the turntable die under the synergistic action of structural components such as the top mandrel. The operation process is simple and convenient, ensuring the efficiency of heat treatment of the mandrel part.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A workpiece turntable device for a mandrel induction hardening equipment includes a mounting bracket, a spindle mounting component, a spindle assembly, a top mandrel, a mandrel sleeve, a retaining spring, a spring support, and an air inlet. The spindle mounting component is mounted on the mounting bracket by mounting bolts. The spindle assembly is mounted on the spindle mounting component by bearings. A spring support is mounted on the top of the spindle assembly and is fixedly connected to the spindle assembly. A working cavity is formed inside the mandrel sleeve, and the lower part of the working cavity is fitted onto the spring support. A retaining spring is mounted on the spring support. The top mandrel is disposed in the working cavity of the mandrel sleeve, and its bottom is mounted and connected to the retaining spring. The air inlet is assembled on the mandrel sleeve, and its inner side communicates with the working cavity. A compressed air pipeline is connected to the outer side of the air inlet.

[0006] Furthermore, in the free state, the spring keeps the top mandrel in the working cavity of the mandrel sleeve, and the top of the top mandrel is lower than the upper opening of the working cavity.

[0007] Furthermore, the top mandrel is composed of a conical head and a mandrel body. The conical head is located on the top of the mandrel body and is fixedly connected to the mandrel body as an integral structure. The outer circle of the mandrel body is in sliding and sealing contact with the inner wall of the working cavity inside the mandrel sleeve.

[0008] The outer circumference of the spindle body is provided with a travel limiting groove, and a limiting block is fixedly installed on the spindle sleeve corresponding to the travel limiting groove. The limiting block extends into the travel limiting groove to limit the travel of the spindle body in the spindle sleeve.

[0009] The spindle assembly includes a spindle body, a drive wheel, and a locking nut. The spindle body is mounted on the spindle mounting component via bearings. The bottom of the spring support is fixedly mounted on the top of the spindle body. The drive wheel is located on the lower side of the spindle body and is locked to the spindle body by the locking nut.

[0010] Furthermore, a turntable die is installed on the top of the mandrel sleeve. The turntable die is fixedly connected to the mandrel sleeve. A die groove for holding the mandrel parts is opened in the turntable die, and the die groove is connected to the working cavity.

[0011] The beneficial effects of this utility model are as follows: The overall structure of the workpiece turntable device for the induction hardening equipment of this utility model is scientifically designed, and the installation, operation and use are simple and convenient. In specific use, this utility model can achieve rapid ejection of the mandrel parts in the turntable die through the coordinated operation of components such as the top mandrel, mandrel sleeve, retaining spring, spring support, air inlet and turntable die, thereby ensuring the efficiency of heat treatment of the mandrel parts. Specifically, under normal conditions, the top mandrel in the mandrel sleeve is retracted into the working cavity in the mandrel sleeve under the pull of the retaining spring. When it is necessary to eject the mandrel parts in the turntable die, high-pressure gas can be connected to the air inlet. The high-pressure gas fills the working cavity in the mandrel sleeve and pushes the top mandrel upward. At this time, the conical head at the top of the top mandrel protrudes from the mandrel sleeve and quickly ejects the mandrel parts in the die groove of the turntable die. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the workpiece turntable device for the induction hardening equipment of this utility model;

[0013] Figure 2 This is a schematic diagram of the installation of the top mandrel, mandrel sleeve, retaining spring and spring support in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the mandrel in this utility model;

[0015] Figure 4 This is a schematic diagram of the mandrel sleeve in this utility model;

[0016] Figure 5 This is a structural schematic diagram of the spindle assembly in this utility model;

[0017] Figure 6 This is a diagram showing the state of the mandrel in this utility model when it is retracted.

[0018] The numbers in the diagram are as follows: 1-Mounting bracket, 2-Spindle mounting component, 3-Spindle assembly, 4-Top spindle, 5-Spindle sleeve, 6-Retaining spring, 7-Spring support, 8-Air inlet, 9-Turntable die, 10-Working cavity, 31-Spindle body, 32-Drive wheel, 33-Locking nut, 41-Conical head, 42-Spindle body, 43-Stroke limit groove, 44-Limit block, 91-Die groove. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly connected to the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this application to indicate orientation are based on the specific structure shown in the accompanying drawings and do not constitute a limitation on the structure.

[0020] Specific Embodiment 1: As shown in the appendix to the specification of this utility model. Figure 1As shown, to address the problem that during heat treatment of mandrel parts, the volume of the heated mandrel increases, making it prone to contact with the turntable die 9 and thus difficult to remove the mandrel parts, this utility model provides a workpiece turntable device for a mandrel induction hardening equipment. It mainly includes a mounting bracket 1, a spindle mounting component 2, a spindle assembly 3, a top mandrel 4, a mandrel sleeve 5, a retaining spring 6, a spring support 7, and an air inlet 8. The mounting bracket 1 supports the spindle mounting component 2. During installation, the outer side of the spindle mounting component 2 is mounted on the mounting bracket 1 using mounting bolts. The spindle assembly 3 supports the spring support 7 and is mounted on the spindle mounting component 2 via bearings. A mounting bracket for the mandrel sleeve 5 is installed on the top of the spindle assembly 3. The spring support 7 is fixedly connected to the main shaft assembly 3. The mandrel sleeve 5 has a working cavity 10, the lower part of which is fitted onto the spring support 7. A retaining spring 6 is installed on the spring support 7 to drive the top mandrel 4 to retract. The top mandrel 4 is located in the working cavity 10 of the mandrel sleeve 5, and its bottom is connected to the retaining spring 6. The air inlet 8 is assembled on the mandrel sleeve 5, and its inner side is connected to the working cavity 10. The outer side of the air inlet 8 is connected to a compressed air pipeline. A turntable die 9 is installed on the top of the mandrel sleeve 5 and is fixedly connected to the mandrel sleeve 5. A die groove 91 for holding the mandrel parts is opened in the turntable die 9, and the die groove 91 is connected to the working cavity 10.

[0021] As per the instruction manual Figure 6 As shown, it should be noted that in the free state, the spring 6 keeps the top spindle 4 in the working cavity 10 of the spindle sleeve 5, and the top of the top spindle 4 is lower than the upper cavity opening of the working cavity 10.

[0022] As per the instruction manual Figure 3 As shown, the mandrel 4 used to eject the mandrel part from the die groove 91 consists of a conical head 41 and a mandrel body 42. The conical head 41 is located on the top of the mandrel body 42 and is fixedly connected to the mandrel body 42 as an integral structure. The outer circle of the mandrel body 42 is in sliding and sealing contact with the inner wall of the working cavity 10 inside the mandrel sleeve 5.

[0023] As per the instruction manual Figure 2 As shown, in order to limit the stroke of the spindle body 42 within the working cavity 10 of the spindle sleeve 5, a stroke limiting groove 43 is provided on the outer circle of the spindle body 42, and a limiting block 44 is fixedly installed on the spindle sleeve 5 corresponding to the stroke limiting groove 43. The limiting block 44 extends into the stroke limiting groove 43 to limit the stroke of the spindle body 42 within the spindle sleeve 5.

[0024] As per the instruction manual Figure 5As shown, the spindle assembly 3 of this utility model includes a spindle body 31, a drive wheel 32, and a locking nut 33. The drive wheel 32 is used to drive the spindle body 31 to rotate. During installation, the spindle body 31 is assembled on the spindle mounting component 2 through bearings. The bottom of the spring support 7 is fixedly installed at the top position of the spindle body 31. The drive wheel 32 is located on the lower side of the spindle body 31 and is locked together with the spindle body 31 by the locking nut 33.

[0025] The installation and use process of the workpiece turntable device for the induction hardening equipment of this utility model is as follows: First, during installation, the installer can first install the main spindle assembly 3. Specifically, the main spindle body 31 can be assembled onto the main spindle mounting component 2 via bearings. The bottom of the spring support 7 is fixedly installed at the top position of the main spindle body 31. The drive wheel 32 is set on the lower side of the main spindle body 31 and locked together with the main spindle body 31 by the locking nut 33. A working cavity 10 is opened in the mandrel sleeve 5. The lower part of the working cavity 10 is fitted onto the spring support 7. A retaining spring 6, which drives the top spindle 4 to retract, is installed on the inner spring support 7. The top spindle 4 is placed in the working cavity 10 of the spindle sleeve 5. An air inlet 8 is installed on the spindle sleeve 5, ensuring that the inner side of the air inlet 8 communicates with the working cavity 10. A turntable die 9 is fixedly installed on the top of the spindle sleeve 5. A die groove 91 for holding the spindle parts is opened in the turntable die 9. After the above installation is completed, the spindle body 31 is installed on the spindle mounting component 2 through bearings. The spindle mounting component 2 is installed on the mounting bracket 1 through bolts. In actual use, the spindle parts are placed in the die groove 91 opened in the turntable die 9. The top mandrel 4, located inside the mandrel sleeve 5, is retracted into the working cavity 10 inside the mandrel sleeve 5 under the pull of the retaining spring 6. When it is necessary to eject the mandrel parts inside the turntable die 9, the air inlet 8 can be connected to high-pressure gas. The high-pressure gas fills the working cavity 10 inside the mandrel sleeve 5 and pushes the top mandrel 4 upward. At this time, the tapered head 41 on the upper part of the top mandrel 4 protrudes out of the mandrel sleeve 5 and quickly ejects the mandrel parts in the die groove 91 of the turntable die 9.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece turntable device for a mandrel induction hardening equipment, characterized in that, The assembly includes a mounting bracket (1), a spindle mounting component (2), a spindle assembly (3), a top spindle (4), a spindle sleeve (5), a retaining spring (6), a spring support (7), and an air inlet (8). The spindle mounting component (2) is mounted on the mounting bracket (1) on the outside by mounting bolts. The spindle assembly (3) is mounted on the spindle mounting component (2) by bearings. A spring support (7) is installed on the top of the spindle assembly (3). A working cavity (10) is opened in the spindle sleeve (5). The lower part of the working cavity (10) is fitted on the spring support (7). A retaining spring (6) is installed on the spring support (7). The top spindle (4) is set in the working cavity (10) of the spindle sleeve (5), and the bottom of the top spindle (4) is connected to the retaining spring (6). The air inlet (8) is assembled on the spindle sleeve (5), and the inner side of the air inlet (8) is connected to the working cavity (10).

2. The workpiece turntable device for a mandrel induction hardening equipment according to claim 1, characterized in that, In the free state, the spring (6) keeps the top spindle (4) in the working cavity (10) of the spindle sleeve (5), and the top of the top spindle (4) is lower than the upper cavity opening of the working cavity (10).

3. The workpiece turntable device for a mandrel induction hardening equipment according to claim 2, characterized in that, The top mandrel (4) consists of a conical head (41) and a mandrel body (42). The conical head (41) is located on the top of the mandrel body (42) and is fixedly connected to the mandrel body (42) as an integral structure. The outer circle of the mandrel body (42) is in sliding and sealing contact with the inner wall of the working cavity (10) inside the mandrel sleeve (5).

4. The workpiece turntable device for a mandrel induction hardening equipment according to claim 3, characterized in that, The outer circle of the spindle body (42) is provided with a travel limiting groove (43), and a limiting block (44) is fixedly installed on the spindle sleeve (5) corresponding to the travel limiting groove (43). The limiting block (44) extends into the travel limiting groove (43) to limit the travel of the spindle body (42) in the spindle sleeve (5).

5. The workpiece turntable device for a mandrel induction hardening equipment according to claim 1, characterized in that, The spindle assembly (3) includes a spindle body (31), a drive wheel (32), and a locking nut (33). The spindle body (31) is mounted on the spindle mounting component (2) by bearings. The bottom of the spring support (7) is fixedly installed at the top position of the spindle body (31). The drive wheel (32) is located on the lower side of the spindle body (31) and is locked together with the spindle body (31) by the locking nut (33).

6. The workpiece turntable device for a mandrel induction hardening equipment according to claim 1, characterized in that, A turntable die (9) is installed on the top of the mandrel sleeve (5). The turntable die (9) is fixedly connected to the mandrel sleeve (5). A die groove (91) for holding the mandrel parts is opened in the turntable die (9). The die groove (91) is connected to the working cavity (10).

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