A pin bending device for a magnetic sensitive temperature switch

Abstract

The present invention discloses a pin bending device for a magnetic temperature switch, comprising a mounting plate, a supporting block on the mounting plate, a pressing and bending mechanism, and a secondary bending mechanism; the pressing and bending mechanism comprises a first driving cylinder, a bending pressure code arranged at the end of the piston rod of the first driving cylinder, and a pressing code located at the lower side of the bending pressure code, the pressing code and the bending pressure code are connected by a transmission assembly, and the pressing code is used to press the pin of the magnetic temperature switch onto the supporting block; the bending pressure code is provided with a bending die, and the supporting block is provided with a bending arc that matches the curvature of the bending die. By adopting an automated processing method, it is only necessary to place the magnetic temperature switch to be bent on the supporting block, and the pressing and bending mechanism and the secondary bending mechanism automatically process the pin into a U-shape, and each bent pin is of the same size and accurate in size, so that the product shape of the magnetic temperature switch is extremely regular; the bending efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of pin processing devices for magnetic sensitive elements, and in particular to a pin bending device for a magnetic sensitive temperature switch. Background Art

[0002] The magnetic temperature switch mainly includes a reed switch A' and a magnetic ring assembly 3' (see Figure 7 As shown in the figure, the reed switch A' includes a reed switch body 1' and two pins 2' respectively extending from the two ends of the reed switch body. The magnetic ring assembly 3' is sleeved on the reed switch body 1'. When the magnetic temperature switch is used, the pins generally need to be bent or cut to meet the layout requirements of the solder joints. At present, the pins of the magnetic temperature switch are still bent manually. The staff uses needle-nosed pliers to clamp a certain pin and a part of the pin extends from the needle-nosed pliers, and the other hand bends the said part of the pin into a U shape. However, this manual operation has the following shortcomings: (1) The bending arc of each pin is different, and it is difficult to ensure the consistency of the pin length; (2) If the manual operation strength is not controlled well, it will cause hidden cracks to the glass tube of the reed switch body, which will bring hidden dangers to the quality of the product. (3) The labor of the staff is heavy and the operation efficiency is low.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a pin bending device for a magnetic temperature switch, aiming to replace manual work and automatically complete the pin bending process of the magnetic temperature switch.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pin bending device for a magnetic temperature switch comprises a mounting plate, a supporting block arranged on the mounting plate, a pressing and bending mechanism, and a secondary bending mechanism; the pressing and bending mechanism comprises a first driving cylinder, a bending pressure code arranged at the end of a piston rod of the first driving cylinder, and a pressing code located at the lower side of the bending pressure code, the pressing code and the bending pressure code are connected by a transmission assembly, and the pressing code is used to press the pin of the magnetic temperature switch onto the supporting block; the bending pressure code is provided with a bending die opening, and the supporting block is provided with a bending arc matched with the curvature of the bending die opening, the first driving cylinder is used to drive the bending pressure code to move toward the supporting block, so that the bending die opening and the bending arc bite to bend the pin into an L-shaped pin, and the secondary bending mechanism is used to bend the L-shaped pin into a U-shaped pin.

[0007] The bent foot pressing code is connected to the first driving cylinder through a cylinder connecting plate, guide protrusions are provided on both sides of the bent foot pressing code, a guide rail is provided on the mounting plate, a slide groove is provided on the guide rail, the guide protrusions on both sides of the bent foot pressing code are slidably inserted into the corresponding slide grooves, a guide groove for installing the pressing code is provided at the bottom of the bent foot pressing code, two bent foot arms are formed on both sides of the guide groove, and a bent foot mold opening is provided at the bottom end of at least one bent foot arm.

[0008] The transmission assembly includes a latch arranged on the top of the bent foot pressure code and a spring sleeved on the latch, the bent foot pressure code is provided with a stepped hole for the spring latch to be inserted, and the two ends of the spring are respectively fixed to the bent foot pressure code and the clamping code; the clamping code includes two presser feet and a presser foot connecting plate for connecting the two presser feet, an avoidance cavity is formed between the two presser feet, and the two presser feet are used to respectively press the two pins of the magnetic temperature switch.

[0009] The secondary bending mechanism includes a second driving cylinder and a bending foot strip arranged at the end of the piston rod of the second driving cylinder. The second driving cylinder is perpendicular to the first driving cylinder. One end of the bending foot strip is provided with a secondary bending foot die mouth that is adapted to the curvature of the bending arc.

[0010] The edge of the bending foot die is set as a first arc segment, the bending arc is set as a semicircular arc, the edge of the secondary bending foot die is a second arc segment and a straight line segment connected to each other, and the first arc segment and the second arc segment are concentrically arranged.

[0011] The secondary bending mechanism also includes a transverse guide block fixedly arranged on the mounting plate, the transverse guide block is provided with a guide channel, the bending foot strip passes through the guide channel and is slidably connected to the guide channel.

[0012] The first driving cylinder is provided with a first stroke sensing component for detecting the stroke position of the piston of the first driving cylinder, and the second driving cylinder is provided with a second stroke sensing component for detecting the stroke position of the piston of the second driving cylinder.

[0013] The mounting plate is placed vertically, the pressing and bending mechanism and the secondary bending mechanism are arranged on the front side of the mounting plate, and a supporting block withdrawal mechanism is also arranged on the mounting plate, the supporting block withdrawal mechanism includes a cylinder mounting seat arranged on the rear side of the mounting plate, and a third driving cylinder arranged on the cylinder mounting seat, the supporting block includes two withdrawal blocks and a connecting plate for connecting the two withdrawal blocks, the piston rod end of the third driving cylinder is connected to the withdrawal block connecting plate, and a through hole for the withdrawal block to pass through is opened on the mounting plate.

[0014] The third driving cylinder is provided with a third stroke sensing component for detecting the piston stroke position of the third driving cylinder.

[0015] The rear side of the mounting plate is provided with a support foot, the support foot is provided with an inclined surface, and the mounting plate is fixedly connected to the inclined surface to achieve backward tilting. Beneficial Effects

[0016] The present invention provides a pin bending device for a magnetic temperature switch. Compared with the manual pin bending method, due to the use of an automated processing method, it is only necessary to place the magnetic temperature switch to be bent on a support block, and the pressing and bending mechanism and the secondary bending mechanism automatically bend the pin into a U shape. Each bent pin is of the same size and accurate in size, so that the product shape of the magnetic temperature switch is extremely regular; the bending efficiency is extremely high, and the force applied to each bend is moderate and the same, which will not cause damage or hidden dangers to the product. In addition, the support block extraction mechanism extracts the support block to allow the bent magnetic temperature switch to fall freely into the storage box, without the need to manually remove the magnetic temperature switch, further improving the bending efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the pin bending device provided by the present invention.

[0018] Figure 2 A top view of the pin bending device provided by the present invention.

[0019] Figure 3 A three-dimensional diagram of the compression and bending mechanism, the secondary bending mechanism, and the support block extraction mechanism in the pin bending device provided by the present invention.

[0020] Figure 4 A schematic diagram of the state of a compression code compressing a pin in the pin bending device provided by the present invention.

[0021] Figure 5 A schematic diagram of the state of the pin bending press code bending the pin in the pin bending device provided by the present invention.

[0022] Figure 6 A schematic diagram of the state of a pin being bent by a bending bar in the pin bending device provided by the present invention.

[0023] Figure 7 This is a three-dimensional image of the pins of the magnetic temperature switch after being bent. DETAILED DESCRIPTION

[0024] The present invention provides a pin bending device for a magnetic temperature switch. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0025] In the present invention, Figure 1For reference, "front" is the direction of the mounting plate toward the clamping and bending mechanism and the secondary bending mechanism, "rear" is the direction opposite to "front", and "up, down, left, and right" are the viewing directions of the horizontal projection of the mounting plate. It should be understood that the above-mentioned indications of orientation or positional relationships are only for the convenience of describing the structure of the present invention and do not limit its structure.

[0026] See also Figure 1-Figure 6 The present invention provides a pin bending device for a magnetic temperature switch, comprising a mounting plate 1, a supporting block 2 arranged on the mounting plate, a pressing and bending mechanism 3, and a secondary bending mechanism 4; the pressing and bending mechanism 3 comprises a first driving cylinder 31, a bending foot pressure code 32 arranged at the end of the piston rod of the first driving cylinder, and a pressing code 33 located at the lower side of the bending foot pressure code, the pressing code 33 and the bending foot pressure code 32 are connected through a transmission component 5, the pressing code 33 is used to press the pin of the magnetic temperature switch onto the supporting block 2; the bending foot pressure code 32 is provided with a bending die 34, the supporting block 2 is provided with a bending arc 21 adapted to the curvature of the bending die, the first driving cylinder 31 is used to drive the bending foot pressure code 32 to move toward the supporting block, so that the bending die 34 is engaged with the bending arc 21 to bend the pin into an L-shaped pin, and the secondary bending mechanism 4 is used to bend the L-shaped pin into a U-shaped pin. It should be noted that, in the present embodiment, the bending foot pressing code 32 is provided with only one bending foot die opening 34, and a bending arc 21 is provided only at one end of the supporting block 2, that is, each time the bending foot is operated, only one pin of the magnetic temperature switch is bent. If two bending foot die openings 34 are provided at the bending foot pressing code 32, and corresponding bending arcs are provided at both ends of the supporting block, each bending foot operation can bend the two pins of the magnetic temperature switch at the same time, and this embodiment also falls within the protection scope of the present invention.

[0027] Here, the pressing and bending mechanism 3 and the secondary bending mechanism 4 are both electrically connected to the control module, and the control module controls their operation. The control module includes a PLC controller and related control circuits. The PLC controller is electrically connected to an external start switch.

[0028] While working, see Figure 4-Figure 6, grab the magnetic temperature switch by hand and place it on the supporting block 2, press the start switch, the control module controls the piston rod of the first driving cylinder 31 to extend toward the supporting block 2, driving the bending foot pressing code 32 and the pressing code 33 to move together, the pressing code 33 first presses the two pins A1 of the magnetic temperature switch A under the thrust of the transmission component, and then the bending foot pressing code 32 continues to move, the bending foot pressing code 32 is provided with a bending foot arm 35 of a bending foot die to push one end of the pin A1, and at the same time, the bending foot die 34 and the bending arc 21 of the supporting block cooperate with each other to bend the pin A1 to form an L-shaped pin at one end, and the bending part is an arc shape. Finally, the control module controls the secondary bending mechanism 4 to bend the L-shaped pin into a U-shaped pin again. It can be seen that compared with the manual bending method, the pin bending device of the magnetic temperature switch provided by the present invention has each bent pin of the same size and accurate size, so that the product shape of the magnetic temperature switch is extremely regular. Due to the use of automated processing methods, the bending efficiency is extremely high, and the force applied each time is moderate and the same, which will not cause damage or hidden dangers to the product.

[0029] For details, please refer to Figure 3 The bending foot pressing code 32 is connected to the first driving cylinder 31 through the cylinder connecting plate 36. Guide protrusions 37 are provided on both sides of the bending foot pressing code 32. A guide rail 38 is provided on the mounting plate. A slide groove (not shown in the figure) is provided on the guide rail. The guide protrusions 37 on both sides of the bending foot pressing code 32 slide and snap into the corresponding slide groove. A guide groove 39 for installing the pressing code is provided at the bottom of the bending foot pressing code 32. Two bending foot arms 35 are formed on both sides of the guide groove. A bending foot die 34 is provided at the bottom end of at least one bending foot arm. The guide rail 38 can guide the movement of the bending foot pressing code 32 to ensure that the bending foot die 34 is always aligned with the bending arc 21, and can also limit the bending foot pressing code 32 to prevent the piston rod of the first driving cylinder 31 from being deformed by the tangential force. In addition, one side of the two bent foot arms 35 plays a role in pushing the pin to bend, and the other side of the clamping code 33 is installed in the guide groove surrounded by the bent foot arms 35 (that is, wrapped by the bent foot clamping code), so the overall structure is compact and the design is ingenious. The bent foot arms 35 can also play a guiding and positioning role for the clamping code 33 to ensure that the moving directions of the bent foot clamping code 32 and the clamping code 33 are consistent.

[0030] Preferably, see Figure 4The transmission assembly 5 includes a latch 51 arranged on the top of the bent foot pressure code and a spring 52 sleeved on the latch. The bent foot pressure code is provided with a stepped hole (not visible in the figure) for the spring latch to be inserted. The two ends of the spring 52 are respectively fixed to the bent foot pressure code 32 and the clamping code 33; the clamping code 33 includes two presser feet 33a and a presser foot connecting plate 33b for connecting the two presser feet. An avoidance cavity 33c is formed between the two presser feet. The two presser feet 33a are used to press the two pins A1 of the magnetic temperature switch respectively. Due to the limitation of the spring, the clamping code 33 cannot be separated from the guide groove 39. When the clamping code 33 presses the pin A1, the bent foot pressure code 32 gradually approaches the clamping code 33, so that the compression amount of the spring gradually increases, ensuring that the clamping force of the clamping code on the pin is sufficient. In addition, the force of the bent foot pressure code 32 on the clamping code 33 is buffered by the spring 52, so there is no rigid contact, which prevents the piston rod of the first driving cylinder from being subjected to a strong rigid impact, thereby improving the service life of the first driving cylinder. The avoidance cavity can be provided to prevent the pressing code 33 from interfering with the main body A2 of the magnetic temperature switch, and both sides of the pressing foot are slidably connected with the bent foot arm.

[0031] For details, please refer to Figure 3-Figure 6 The secondary bending mechanism 4 includes a second driving cylinder 41 and a bending foot bar 42 disposed at the end of the piston rod of the second driving cylinder. The second driving cylinder 41 is perpendicular to the first driving cylinder 31. One end of the bending foot bar 42 is provided with a secondary bending foot die 43 adapted to the curvature of the bending arc 21. During operation, the second driving cylinder 41 drives the bending foot bar 42 to move toward the support bracket 2. Since the pin A1 is also in a state of being pressed by the bending foot pressure code 32 and the pressing code 33 at this time, the bending foot bar 42 pushes the pin A1 to bend again, and makes the pin close to the bending arc and bend into another arc, thereby forming a U-shaped bending portion.

[0032] Preferably, see Figure 1 The secondary bending mechanism 4 further includes a transverse guide block 44 fixedly arranged on the mounting plate, and the transverse guide block is provided with a guide channel (not visible in the figure), and the bending leg strip passes through the guide channel and is slidably connected with the guide channel. By providing the transverse guide block, the movement of the bending leg strip can be guided to ensure that the bending leg strip is always aligned with the bending arc, and the bending leg strip can also be limited to prevent the piston rod of the second driving cylinder from being deformed by the tangential force.

[0033] Preferably, see Figure 6, the edge of the bending die 34 is set as the first arc segment, the bending arc 21 is set as a semicircular arc, the edge of the secondary bending die 43 is the second arc segment and the straight line segment connected to each other, and the first arc segment and the second arc segment are concentrically arranged. Through such an arrangement, the first arc segment and the second arc segment form a semicircular arc, and the pin becomes U-shaped after continuous bending of the bending foot pressure code and the bending foot strip, and the curvature of each bent foot-formed pin is consistent and accurate in size.

[0034] As a preferred option, please refer to Figure 2-Figure 3 The mounting plate 1 is placed vertically, the pressing and bending mechanism 3 and the secondary bending mechanism 4 are arranged on the front side of the mounting plate, and a supporting block extraction mechanism 6 is also arranged on the mounting plate, the supporting block extraction mechanism 6 includes a cylinder mounting seat 61 arranged on the rear side of the mounting plate, and a third driving cylinder 62 arranged on the cylinder mounting seat, the supporting block 2 includes two extraction blocks 22 and a connecting plate 23 for connecting the two extraction blocks, the piston rod end of the third driving cylinder 62 is connected to the connecting plate of the extraction block 22, and a through hole for the extraction block 22 to pass through is opened on the mounting plate.

[0035] Since the mounting plate is placed vertically, the first drive cylinder 31 is set vertically downward, the second drive cylinder 41 is set horizontally, and the third drive cylinder 62 is set horizontally, forming an X / Y / Z three-axis three-dimensional structure with a compact structure. The three drive cylinders work in coordination without interfering with each other. When the pins of the magnetic temperature switch are bent, the piston rods of the second drive cylinder 41 and the first drive cylinder 31 are reset in turn. At this time, the piston rod of the third drive cylinder 62 pulls the support block 2 to move backward, so that the two withdrawal blocks 22 return to the rear side of the mounting plate, so that the magnetic temperature switch after the bent foot is formed falls freely into the storage box located below it, and there is no need to manually remove the magnetic temperature switch, further improving the bending efficiency. After completing this step, the piston rod of the third driving cylinder 62 will push the two withdrawal blocks 22 forward again to pass through the mounting plate 1, and start a new round of bending processing; when the magnetic temperature switch body to be bent is placed, the magnetic temperature switch body A2 is suspended between the two withdrawal blocks 22, and the two pins A1 are placed on the two withdrawal blocks 22 respectively. The distance between the two withdrawal blocks 22 is slightly larger than the length of the magnetic temperature switch body A2, so that the lateral placement position of each magnetic temperature switch to be processed is basically the same, thereby ensuring that the bending point of the pin of each magnetic temperature switch is consistent and the size of the pin bending is accurate.

[0036] Preferably, see Figure 1 The rear side of the mounting plate is provided with a support leg 10, on which a slope is provided, and the mounting plate is fixedly connected to the slope to achieve backward tilting. By tilting the mounting plate backward at a certain angle, it is convenient to place the magnetic temperature switch to be bent, thereby improving the operating efficiency.

[0037] The working sequence of the first driving cylinder 31, the second driving cylinder 41, and the third driving cylinder 62 can be controlled by the existing control program in the time difference sequence or by the control module in conjunction with multiple limit sensors (such as multiple optical fiber sensors, multiple proximity switches, etc.) to work sequentially at the triggering time. Specifically, the first driving cylinder 31 is provided with a first stroke sensing component 7 for detecting the piston stroke position of the first driving cylinder, and the second driving cylinder 41 is provided with a second stroke sensing component 8 for detecting the piston stroke position of the second driving cylinder. The third driving cylinder 62 is provided with a third stroke sensing component 9 for detecting the piston stroke position of the third driving cylinder. The first stroke sensing component 7 includes an upper magnetic sensor 71 and a lower magnetic sensor 72 arranged on the first driving cylinder, the second stroke sensing component includes a left magnetic sensor 81 and a right magnetic sensor 82 arranged on the second driving cylinder; the third stroke sensing component 9 includes a front magnetic sensor 91 and a rear magnetic sensor 92 arranged on the third driving cylinder.

[0038] According to the structural setting of the present embodiment, the control process is briefly described below. When the pin bending process is started, the control module drives the first driving cylinder 31 to drive the piston rod to move downward, so that the clamping code 33 clamps the pin, and the bending code 32 bends the pin for the first time to make the pin into an L shape. The piston of the first driving cylinder 31 triggers the lower magnetic sensor 72, so that the lower magnetic sensor 72 feeds back a signal to the control module, and the control module then drives the second driving cylinder 41 to drive the piston rod to move right, so that the bending code 32 bends the pin for the second time to make the pin into a U shape. At this time, the piston of the second driving cylinder 41 triggers the right magnetic sensor 82, so that the right magnetic sensor 82 feeds back a signal to the control module, and the control module then drives the second driving cylinder 41 to drive the piston rod to move left Reset, at this time, the piston of the second drive cylinder triggers the left magnetic sensor 81, so that the left magnetic sensor 81 feedbacks a signal to the control module, and the control module then drives the first drive cylinder 31 to drive the piston rod to move upward to reset, at this time, the piston of the first drive cylinder 31 triggers the upper magnetic sensor 71, so that the upper magnetic sensor feedbacks a signal to the control module, and the control module then drives the third drive cylinder 62 to drive the piston rod to move backward, so that the withdrawal block 22 retracts to the rear side of the mounting plate 1, at this time, the piston of the third drive cylinder triggers the rear magnetic sensor 92, and the third drive cylinder 62 drives the piston rod to move forward, so that the withdrawal block 22 on the support block passes through the mounting plate 1, and the piston of the third drive cylinder 62 triggers the front magnetic sensor 91, so that the front magnetic sensor feedbacks a signal to the control module. The entire pin bending process is smoothly controlled and highly automated, which greatly improves the bending efficiency and increases production capacity.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A pin bending device for a magnetic temperature switch, characterized in that: It includes a mounting plate, a supporting block arranged on the mounting plate, a pressing and bending mechanism, and a secondary bending mechanism; the pressing and bending mechanism includes a first driving cylinder, a bending foot pressure code arranged at the end of the piston rod of the first driving cylinder, and a pressing code located at the lower side of the bending foot pressure code, the pressing code and the bending foot pressure code are connected through a transmission component, and the pressing code is used to press the pin of the magnetic temperature switch onto the supporting block; the bending foot pressure code is provided with a bending foot die, and the supporting block is provided with a bending arc adapted to the curvature of the bending foot die. The first driving cylinder is used to drive the bending foot pressing code to move toward the supporting block, so that the bending foot die mouth and the bending arc bite to bend the pin into an L-shaped pin, and the secondary bending mechanism is used to bend the L-shaped pin into a U-shaped pin; the bending foot pressing code is connected to the first driving cylinder through the cylinder connecting plate, and guide protrusions are provided on both sides of the bending foot pressing code, and a guide rail is provided on the mounting plate, and a slide groove is provided on the guide rail. The guide protrusions on both sides of the bending foot pressing code are slidably inserted into the corresponding slide grooves, and a bottom of the bending foot pressing code is provided with a A guide groove of the pressing code, two bending feet arms are formed on both sides of the guide groove, and a bending foot die is provided at the bottom end of at least one bending foot arm; the transmission assembly includes a latch arranged at the top of the bending foot pressing code and a spring sleeved on the latch, the bending foot pressing code is provided with a stepped hole for the spring latch to be inserted, and the two ends of the spring are respectively fixed to the bending foot pressing code and the pressing code; the pressing code includes two presser feet and a presser foot connecting plate for connecting the two presser feet, an avoidance cavity is formed between the two presser feet, and the two presser feet are used to press the two pins of the magnetic temperature switch respectively; the secondary bending mechanism includes a second driving cylinder and a bending foot strip arranged at the end of the piston rod of the second driving cylinder, the second driving cylinder is perpendicular to the first driving cylinder, and one end of the bending foot strip is provided with a secondary bending foot die adapted to the curvature of the bending arc; the edge of the bending foot die is set as a first arc segment, the bending arc is set as a semicircular arc, the edge of the secondary bending foot die is a second arc segment and a straight line segment connected to each other, and the first arc segment and the second arc segment are concentrically arranged.

2. The pin bending device of the magnetic temperature switch according to claim 1, characterized in that: The secondary bending mechanism also includes a transverse guide block fixedly arranged on the mounting plate, the transverse guide block is provided with a guide channel, the bending foot strip passes through the guide channel and is slidably connected to the guide channel.

3. The pin bending device of the magnetic temperature switch according to claim 1, characterized in that: The first driving cylinder is provided with a first stroke sensing component for detecting the stroke position of the piston of the first driving cylinder, and the second driving cylinder is provided with a second stroke sensing component for detecting the stroke position of the piston of the second driving cylinder.

4. The pin bending device of the magnetic temperature switch according to claim 1, characterized in that: The mounting plate is placed vertically, the pressing and bending mechanism and the secondary bending mechanism are arranged on the front side of the mounting plate, and a supporting block withdrawal mechanism is also arranged on the mounting plate, the supporting block withdrawal mechanism includes a cylinder mounting seat arranged on the rear side of the mounting plate, and a third driving cylinder arranged on the cylinder mounting seat, the supporting block includes two withdrawal blocks and a connecting plate for connecting the two withdrawal blocks, the piston rod end of the third driving cylinder is connected to the withdrawal block connecting plate, and a through hole for the withdrawal block to pass through is opened on the mounting plate.

5. The pin bending device of the magnetic temperature switch according to claim 4, characterized in that: The third driving cylinder is provided with a third stroke sensing component for detecting the piston stroke position of the third driving cylinder.

6. The pin bending device of the magnetic temperature switch according to claim 4, characterized in that: The rear side of the mounting plate is provided with a support foot, the support foot is provided with an inclined surface, and the mounting plate is fixedly connected to the inclined surface to achieve backward tilting.

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