Vacuum quenching clamp

Abstract

The utility model relates to the technical field of vacuum quenching, in particular to a vacuum quenching clamp which comprises a frame body, a plurality of clamping units and two limiting units, each clamping unit comprises two fixing plates and two fixing covers, and each limiting unit comprises a transverse plate, a shell, a moving rod, a first circular ring, a spring and an abutting rod. A workpiece is placed on the two fixing covers, then the moving rod is pushed to move under the action of the spring, then the abutting rod moves to the position above the fixing covers, the workpiece is fixed and limited through the abutting rod, the workpiece is limited through the two fixing covers, and therefore the copper hot pot fixing covers and the abutting rod are matched, and the workpiece can be fixed and limited through the two fixing covers. And a workpiece can be limited and fixed, then during quenching, the whole frame body is put into quenching oil for quenching, and the condition that the workpiece slides off is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vacuum quenching technology, and in particular to a vacuum quenching fixture. Background Technology

[0002] Vacuum quenching refers to the quenching process used to achieve a smooth finish on parts. The quenching and cooling of parts takes place in a vacuum furnace, and the quenching media are mainly gas, water, and vacuum quenching oil. Vacuum quenching has been widely used for the quenching of various carburizing steels, alloy tool steels, high-speed steels, and stainless steels, as well as for the solution treatment of various aging alloys and hard magnetic alloys.

[0003] In the prior art, vacuum quenching fixtures are key devices used to fix and support workpieces in a vacuum environment, ensuring their stability during the quenching process and achieving uniform heating and cooling.

[0004] However, in the aforementioned prior art, after the traditional clamping arm holds the quenched item in the quenching oil for quenching, the clamping arm becomes smooth and is very prone to slipping. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum quenching fixture that solves the problem in the prior art where the clamping arms become smooth and easily slip off after the quenching workpiece is placed in the quenching oil.

[0006] To achieve the above objectives, this utility model provides a vacuum quenching fixture, comprising a frame, multiple clamping units, and two limiting units. Each clamping unit includes two fixing plates and two fixing covers. Each limiting unit includes a horizontal plate, a shell, a moving rod, a first ring, a spring, and a supporting rod. The multiple clamping units are respectively disposed inside the frame, and the two limiting units are respectively disposed on the sides of the frame. The two fixing plates are respectively symmetrically disposed inside the frame. The two fixing covers are respectively fixedly connected to the upper ends of the corresponding fixing plates. The horizontal plate is fixedly connected to the frame, and the shell is fixedly connected to the lower end of the horizontal plate. One end of the moving rod passes through the shell and is fixedly connected to the supporting rod. The first ring is fixedly sleeved on the outside of the moving rod and located inside the shell. The two ends of the spring are respectively fixedly connected to the inner wall of the shell and the first ring. The supporting rod is located above the corresponding fixing cover.

[0007] Each of the limiting units further includes two second rings and two round rods. The two rings are fixedly connected to the lower end of the horizontal plate, one end of the two round rods is fixedly connected to the upper end of the abutment rod, and the other end of the two round rods is slidably adapted to the corresponding second ring.

[0008] Each of the limiting units further includes a vertical plate, a slide rail, and a slider. The vertical plate is fixedly connected to the upper end of the moving rod, and the upper end of the vertical plate is fixedly connected to the slider. The slide rail is located at the upper end of the frame, and the slider is slidably adapted to the slide rail.

[0009] The vacuum quenching fixture also includes multiple hooks, which are fixedly connected to the frame and located around the top of the frame.

[0010] The spring is sleeved on the outside of the moving rod, and the vertical plate is located on the outside of the frame.

[0011] This utility model discloses a vacuum quenching fixture. The workpiece is placed on two fixed covers, and then a spring pushes a moving rod to move the supporting rod above the fixed covers. The supporting rod then fixes and limits the workpiece, and the two fixed covers further limit the workpiece's position. Thus, the cooperation of the fixed covers and the supporting rods effectively limits and fixes the workpiece. During quenching, the entire fixture is immersed in quenching oil, and the workpiece will not slip. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a front view of the entire utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0017] 101-Frame, 102-Hook, 103-Fixing plate, 104-Fixing cover, 105-Horizontal plate, 106-Outer shell, 107-Moving rod, 108-First ring, 109-Spring, 110-Holding rod, 111-Second ring, 112-Round rod, 113-Vertical plate, 114-Slide rail, 115-Slider, 116-Cylinder. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0020] This utility model provides a vacuum quenching fixture, including a frame 101, multiple clamping units, two limiting units, and multiple hooks 102. Each clamping unit includes two fixing plates 103 and two fixing covers 104. Each limiting unit includes a horizontal plate 105, a shell 106, a moving rod 107, a first ring 108, a spring 109, a supporting rod 110, two second rings 111, and two round rods 112. Each limiting unit also includes a vertical plate 113, a slide rail 114, and a slider 115.

[0021] In this specific embodiment, the workpiece is placed on the two fixed covers 104. Then, the spring 109 pushes the moving rod 107 to move, causing the supporting rod 110 to move above the fixed covers 104. The supporting rod 110 then fixes and limits the workpiece, and the two fixed covers 104 respectively limit the workpiece. Thus, the cooperation of the copper hot pot fixed covers 104 and the supporting rod 110 effectively limits and fixes the workpiece. During quenching, the entire frame 101 is immersed in quenching oil, and the workpiece will not slip. When the moving rod 107 moves the supporting rod 110... During this process, the cooperation of the two circular rods 112 and the two circular rings makes the movement of the abutment rod 110 more stable and reduces its swaying. Before the workpiece is placed into the fixed cover 104, the output end of the cylinder 116 drives the vertical plate 113 to move and the slider 115 slides in the slide rail 114, improving the stability of the vertical plate 113. The movement of the vertical plate 113 drives the moving rod 107 and the abutment rod 110 to move, making it easier to place the workpiece into the two fixed covers 104. The arrangement of multiple hooks 102 makes it easy to lift the entire device with a crane and then place it in quenching oil for quenching.

[0022] The frame 101 has multiple clamping units disposed inside the frame 101, two limiting units disposed on the sides of the frame 101, two fixing plates 103 symmetrically disposed inside the frame 101, two fixing covers 104 fixedly connected to the upper ends of the corresponding fixing plates 103, a horizontal plate 105 fixedly connected to the frame 101, a housing 106 fixedly connected to the lower end of the horizontal plate 105, one end of a moving rod 107 passing through the housing 106 and fixedly connected to a supporting rod 110, a first ring 108 fixedly sleeved on the outside of the moving rod 107 and located inside the housing 106, two ends of a spring 109 fixedly connected to the inner wall of the housing 106 and the first ring 108 respectively, and the supporting rod 110 located above the corresponding fixing cover 104. The workpiece is placed on the two fixed covers 104, and then the moving rod 107 is pushed to move by the action of the spring 109, thereby moving the abutment rod 110 above the fixed cover 104. The abutment rod 110 fixes and limits the workpiece, and the two fixed covers 104 limit the workpiece respectively. Thus, the cooperation of the copper hot pot fixed cover 104 and the abutment rod 110 can limit and fix the workpiece. Then, during quenching, the frame 101 is immersed in quenching oil for quenching, and the workpiece will not slip.

[0023] Secondly, the two rings are fixedly connected to the lower end of the horizontal plate 105, and one end of each of the two round rods 112 is fixedly connected to the upper end of the supporting rod 110. The other ends of the two round rods 112 are slidably adapted to the corresponding second rings 111. When the moving rod 107 drives the supporting rod 110 to move, the cooperation of the two round rods 112 and the two rings makes the supporting rod 110 more stable during movement, reducing its swaying.

[0024] Meanwhile, the vertical plate 113 is fixedly connected to the upper end of the moving rod 107, and the upper end of the vertical plate 113 is fixedly connected to the slider 115. The slide rail 114 is disposed at the upper end of the frame 101, and the slider 115 is slidably adapted to the slide rail 114. Each limiting unit also includes a cylinder 116, which is fixedly connected to the upper end of the frame 101, and the output end of the cylinder 116 is fixedly connected to the upper end of the vertical plate 113. Before the workpiece is placed into the fixing cover 104, the output end of the cylinder 116 drives the vertical plate 113 to move, and the slider 115 slides in the slide rail 114, improving the stability of the vertical plate 113. The movement of the vertical plate 113 drives the moving rod 107 and the abutment rod 110 to move, thereby facilitating the placement of the workpiece onto the two fixing covers 104.

[0025] Furthermore, multiple hooks 102 are fixedly connected to the frame 101 and are located around the top of the frame 101. The spring 109 is sleeved on the outside of the moving rod 107, and the vertical plate 113 is located on the outside of the frame 101. The arrangement of multiple hooks 102 facilitates the subsequent lifting of the entire device by a crane, followed by quenching in quenching oil.

[0026] When using the vacuum quenching fixture of this utility model, the workpiece is placed on the two fixed covers 104. Then, the spring 109 pushes the moving rod 107 to move, causing the supporting rod 110 to move above the fixed cover 104. The supporting rod 110 then fixes and limits the workpiece, and the two fixed covers 104 respectively limit the workpiece. Thus, the cooperation of the copper hot pot fixed cover 104 and the supporting rod 110 can limit and fix the workpiece. Then, during quenching, the entire frame 101 is immersed in quenching oil, and the workpiece will not slip. When the moving rod 107 drives the supporting rod 110, the workpiece will not slip. When moving, the cooperation of the two circular rods 112 and the two circular rings makes the movement of the abutment rod 110 more stable and reduces its swaying. Before the workpiece is placed into the fixed cover 104, the output end of the cylinder 116 drives the vertical plate 113 to move and the slider 115 slides in the slide rail 114, improving the stability of the vertical plate 113. The movement of the vertical plate 113 drives the moving rod 107 and the abutment rod 110 to move, which makes it easier to place the workpiece into the two fixed covers 104. The arrangement of multiple hooks 102 makes it easy to lift the entire device with a crane and then quench it in quenching oil.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A vacuum quenching fixture, characterized in that, Includes a frame, multiple clamping units, and two limiting units; Each clamping unit includes two fixed plates and two fixed covers. Each limiting unit includes a horizontal plate, a housing, a moving rod, a first ring, a spring, and a supporting rod. Multiple clamping units are respectively disposed inside the frame. Two limiting units are respectively disposed on the sides of the frame. Two fixed plates are symmetrically disposed inside the frame. Two fixed covers are respectively fixedly connected to the upper ends of the corresponding fixed plates. The horizontal plate is fixedly connected to the frame. The housing is fixedly connected to the lower end of the horizontal plate. One end of the moving rod passes through the housing and is fixedly connected to the supporting rod. The first ring is fixedly sleeved on the outside of the moving rod and located inside the housing. Both ends of the spring are respectively fixedly connected to the inner wall of the housing and the first ring. The supporting rod is located above the corresponding fixed cover.

2. The vacuum quenching fixture as described in claim 1, characterized in that, Each of the limiting units further includes two second rings and two round rods. The two rings are fixedly connected to the lower end of the horizontal plate, one end of the two round rods is fixedly connected to the upper end of the abutment rod, and the other end of the two round rods is slidably adapted to the corresponding second ring.

3. The vacuum quenching fixture as described in claim 2, characterized in that, Each of the limiting units further includes a vertical plate, a slide rail, and a slider. The vertical plate is fixedly connected to the upper end of the moving rod, and the upper end of the vertical plate is fixedly connected to the slider. The slide rail is disposed at the upper end of the frame, and the slider is slidably adapted to the slide rail.

4. The vacuum quenching fixture as described in claim 3, characterized in that, The vacuum quenching fixture also includes multiple hooks, which are fixedly connected to the frame and located around the top of the frame.

5. The vacuum quenching fixture as described in claim 4, characterized in that, The spring is sleeved on the outside of the moving rod, and the vertical plate is located on the outside of the frame.

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