Clamp plate fixing device used in cooperation with clamp plate mechanism

Abstract

A clamp plate fixing device used in cooperation with a clamp plate mechanism comprises an air compressor, a pneumatic plug male head, a pneumatic plug female head and a photoelectric switch and further comprises a control circuit and a fixing and limiting mechanism. The fixing and limiting mechanisms are installed at the upper ends of supporting bases of power output discs at the two side ends of the clamp plate mechanism, and the control circuit is installed in an electric control box. When the clamp plate is replaced, the positioning rods on the two sides of the clamp plate are inserted into the guide pipes of the fixing discs at the left side end and the right side end of the clamp plate mechanism respectively, and the elastic balls and the limiting balls can play a role in limiting the positioning rods; when other clamp plates are replaced subsequently, the exhaust pipes of the two sets of pneumatic plug-in male heads are inserted into the front side ends of the two sets of pneumatic plug-in female heads respectively, compressed air can push the pistons to drive the limiting balls to move towards the outer side ends, the clamp plates can be taken down conveniently, and after the exhaust pipes of the two sets of pneumatic plug-in male heads are separated from the two sets of pneumatic plug-in female heads respectively, the clamp plates can be taken down conveniently. The power input end of the clamp plate mechanism is controlled to be electrified to work, so that the clamp plate is prevented from displacement during working as far as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment used in automobile production, in particular to a fixture plate fixing device used in conjunction with a fixture plate mechanism. Background Art

[0002] In vehicle production and the like, in order to perform operations such as installing, welding, and grinding corresponding components, a fixture plate mechanism is used to fix the corresponding components. The fixture plate mechanism generally includes a motor reduction device, a fixture plate, and pneumatic or electric fixtures. In application, the workpiece to be processed is firmly clamped by a plurality of fixtures located on the fixture plate, and then corresponding tools are used to process it. The motor reduction device can drive the fixture plate to rotate a certain angle in a clockwise or counterclockwise direction according to control requirements, which brings convenience to the staff for processing multiple end faces of the workpiece.

[0003] In actual situations, for the processing of corresponding automobile components, the installation positions of a plurality of fixtures fixedly installed on the fixture plate are fixed. Therefore, in order to realize the fixed installation and processing use of different components, multiple sets of fixture plates are equipped in the production area. In specific applications, according to the needs of the components to be processed, the two sides of the fixture plate with different fixture installation positions and the power output discs of two sets of motor reduction devices are bolted together. The power output disc of the existing motor reduction device and the two sides of the fixture plate are bolted together. Specifically, a rectangular fixing groove is reserved at the front and rear ends inside the support seat of the power output disc (the fixing groove has length margins at the front and rear, mainly to facilitate the lower end of the bolt head to be inserted into the fixing groove and move the bolt within a certain range front and back, so that the upper end of the bolt aligns with the fixing holes at the lower parts of the front and rear sides of the left and right ends of the fixture plate). Two bolts are respectively inserted upward through the fixing grooves at the front and rear ends inside the support seat of the power output disc into the fixing holes at the lower parts of the front and rear sides of the left and right ends of the fixture plate, and nuts are screwed onto the upper parts of the bolts to fix the fixture plate and the power output disc. Although the above method satisfies the fixation of the fixture plate to a certain extent, the inner diameter of the fixing hole at the side end of the fixture plate is relatively large for the upper end of the bolt to be inserted. In this way, especially when the fixing nut is not effectively tightened, there are problems of eccentric movement and shaking of the fixture plate in the front, back, left, and right directions after being fixed on the power output disc (the total weight of the fixture plate itself and the installed fixtures is relatively large, and the weight of the workpiece can reach more than one ton, and it will be driven by the motor reduction device to rotate a certain angle clockwise or counterclockwise during work, so there are problems of eccentric movement and shaking of the fixture plate in the front, back, left, and right directions after being fixed on the power output disc. Specifically, after the fixing bolts become loose, there is also a problem of the fixture plate moving back and forth along the support seat of the power output disc), which will have an adverse impact on the processing of the workpiece. Summary of the Utility Model

[0004] In order to overcome the drawbacks described in the background art due to the limitations of the existing fixture plate mechanism's structure, the present utility model provides a fixture plate fixing device for use with a fixture plate mechanism. During application, under the combined action of relevant mechanisms, the limit posts in the middle of both sides at the lower end of the fixture plate can be conveniently inserted into the positioning grooves for fixation, and the main power input terminal of the fixture plate mechanism is only energized after effective fixation, preventing the displacement of the fixture plate during actual operation.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] A fixture plate fixing device for use with a fixture plate mechanism, comprising an air compressor, a pneumatic plug male head, a pneumatic plug female head, and a photoelectric switch. It is characterized in that it further has a control circuit and a fixed limit mechanism; there are at least two sets of the fixed limit mechanism and the pneumatic plug male head respectively. Each set of the fixed limit mechanism includes a fixed disk, a guide tube, a limit tube device, a cylinder tube, and a piston. The cylinder tube is horizontally installed in the lower part of the fixed disk, and an air guide tube is installed at the outer end of one side of the cylinder tube; the other side of the cylinder tube is of an open structure, the piston is movably sleeved inside the other side of the cylinder tube, a connecting rod is installed at the outer end of one side of the piston, and the lower end of the guide tube is vertically installed inside the fixed disk; there is a positioning hole at one side end in the middle of the guide tube, and the fixed limit mechanism and the upper end of the connecting rod are installed together; the lower ends of the fixed disks of the two sets of fixed limit mechanisms are respectively installed on the upper ends of the support seats of the power output disks on both sides of the fixture plate mechanism, and the rear ends of two sets of pneumatic plug female heads and the outer sides of two air guide tubes are respectively installed together. Another two sets of pneumatic plug female heads are installed at the rear part of the housing on one side of the fixture plate mechanism. The exhaust pipe of the air compressor and the intake pipes of the two sets of pneumatic plug male heads are connected by hoses; a fixed plate is installed at the rear side of the housing, and two sets of photoelectric switches are respectively installed on both sides of the fixed plate; the control circuit is installed in the electric control box, the signal output terminals of the two sets of photoelectric switches are electrically connected to the signal input terminal of the control circuit, and the control power output terminal of the control circuit is electrically connected to the main power input terminal of the control fixture plate mechanism.

[0007] Furthermore, after the exhaust pipes of the two pneumatic plug male heads are respectively inserted outside the front ends of the other two sets of pneumatic plug female heads, the detection heads of the two sets of photoelectric switches are respectively located at the lower ends of the two pneumatic plug male heads.

[0008] Furthermore, the control circuit includes a relay and a DC electromagnetic contactor that are electrically connected. The normally open contact end of the relay is connected to the positive power input terminal of the DC electromagnetic contactor, and the negative power input terminal of the relay is connected to the negative power input terminal of the DC electromagnetic contactor.

[0009] Furthermore, the limiting tube device includes a limiting tube, a spring, and a limiting ball. The limiting tube has a guide hole on one end and an open mechanism on the other end. The upper end of the connecting rod is movably sleeved in the guide hole. The side of the upper end of the connecting rod and one side of the limiting ball are installed together, and the spring is movably sleeved on the outside of the upper end of the connecting rod.

[0010] Furthermore, the limiting ball and the positioning hole at the inner end of the guide tube are in the same plane, the diameter of the limiting ball is larger than the inner diameter of the positioning hole, and the upper end of the limiting tube is externally mounted on the inner upper end side of the fixed plate.

[0011] Furthermore, positioning rods are respectively installed at the lower ends of the middle parts of both sides of the clamp plate of the clamp plate mechanism, the height of the positioning rods is smaller than the height of the guide tube, and the outer diameter of the positioning rods is smaller than the inner diameter of the guide tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects: when replacing different fixture plates, the positioning rods of the fixture plates are respectively inserted into the guide tubes of the upper fixed disk in the middle of the support seat of the power output disk at the left and right side ends of the fixture plate mechanism. Under the elastic force of the spring, the outer end of the limiting ball will enter the positioning hole of the guide tube and limit the positioning rod, and then the fixture plate is fixed by bolts; when replacing other fixture plates subsequently, the staff can respectively insert the exhaust pipes of the two sets of pneumatic plug male connectors into the front ends of two sets of pneumatic plug female connectors, so that the compressed air will push the piston to drive the limiting ball to move toward the outer end, and the limiting ball and the positioning hole of the guide tube will be separated, so that the fixture plate can be easily removed; in the application of the present invention, the exhaust pipes of the two sets of pneumatic plug male connectors are respectively separated from the two sets of pneumatic plug female connectors, and then the main power input end of the fixture plate mechanism is controlled to be energized and work. The present invention ensures as much as possible that the fixture plate will not shake or move in the circumferential direction or the front and back directions when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a partially enlarged structural schematic diagram of the utility model.

[0016] Figure 3 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0017] Figure 1 、 2, as shown in FIGS. 3, a fixture plate fixing device for supporting a fixture plate mechanism includes an air compressor (not found in the figure, a mature technology, and the working principle of this application will not be elaborated), a pneumatic plug male head 1 (a mature technology, and the working principle of this application will not be elaborated), a pneumatic plug female head 2 (a mature technology, and the working principle of this application will not be elaborated), a power supply module W1, a photoelectric switch W2, and also has a control circuit 3 and a fixed limit mechanism 4; there are two sets of the fixed limit mechanism 4 and the pneumatic plug male head 1 respectively, and four sets of the pneumatic plug female head 2. Each set of the fixed limit mechanism includes a hollow fixed disk 41, a guide tube 42, a limit tube device 43, a cylinder tube 44, and a piston 45. The cylinder tube 44 is horizontally welded in the middle of the lower end inside the fixed disk 41. A gas guide tube 46 is welded to the outer end of the right side of the cylinder tube 44, and the outer side of the gas guide tube 46 is located at the outer end of the right side of the fixed disk 41; the left side of the cylinder tube 44 is an open structure. The piston 45 is movably sleeved inside the left side of the cylinder tube 44. An isolation plate 47 is welded on the cylinder tube at the lower end inside the fixed disk 41. The left side of the isolation plate 47 is an open structure 48. A "[-]" shaped connecting rod 49 is horizontally welded to the middle of the left outer side end of the piston 45. There is an opening in the middle of the upper end of the fixed disk 41. The lower end and the upper end of the guide tube 42 are respectively welded to the middle of the upper end of the isolation plate 47 and the opening in the middle of the upper end of the fixed disk 41; there is a positioning hole 48 in the middle of the left side end of the guide tube. The limit tube device 43 and the upper end of the connecting rod 49 are installed together; the lower ends of the fixed disks 41 of the two sets of fixed limit mechanisms are respectively installed in the middle of the upper ends of the support seats 6 of the power output disks on the left and right side ends of the fixture plate mechanism 5. The outer rear ends of the gas guide tubes 46 of each set of fixed limit mechanisms 4 are led out through the central hole at the rear side of the power output disk. The exhaust pipes at the rear ends of two sets of the pneumatic plug female heads 2 are respectively welded to the outer sides of the central holes of the power output disks 7 on the left and right side ends. The outer rear ends of the two gas guide tubes 46 and the outer sides of the exhaust pipes at the rear ends of two sets of the pneumatic plug female heads 2 are hermetically welded together and are internally communicated; the left and right spacing distances at the rear ends of the other two sets of pneumatic plug female heads 2 are respectively welded to the outer rear side of the housing on the right side end of the fixture plate mechanism. The exhaust pipe of the air compressor is connected in parallel with two exhaust pipes. The outer ends of the two exhaust pipes are respectively threadedly connected to one end of a valve. A branch pipe is respectively installed inside the other ends of the two valves. The rear ends of the intake pipes of the two sets of pneumatic plug male heads 1 and the other ends of the two branch pipes are connected by a hollow hose with a length margin (not shown in the figure); the exhaust pipes of the two sets of pneumatic plug male heads 1 are respectively inserted into the outer sides of the front ends of the four sets of pneumatic plug female heads 2. A fixing plate 8 with two fixing holes (located below the other two sets of pneumatic plug female heads 2) is welded to the lower part of the outer rear side of the housing on the right side end of the fixture plate mechanism. The two sets of photoelectric switches W2 are vertically distributed and installed in the two fixing holes of the fixing plate 8, and the detection heads of the photoelectric switches W2 face upward; the power supply module W1 and the control circuit 3 are installed in the electric control box 9.

[0018] Figure 1 , 2As shown in Figs. 2 and 3, after the exhaust pipes of two pneumatic plug male connectors 1 are respectively inserted into the front side ends of the other two sets of pneumatic plug female connectors 2, the middle parts of the detection heads of the two sets of photoelectric switches W2 are respectively located at the lower middle parts of the two pneumatic plug male connectors 1. The control circuit includes a relay K1 and a DC electromagnetic contactor K2 connected by circuit board wiring. The normally open contact end of the first relay K1 is connected to the positive power input end of the DC electromagnetic contactor K2, and the negative power input ends of the relay K1 and the DC electromagnetic contactor K2 are connected. The limit tube device includes a limit tube 433, a spring 431, and a limit ball 432. There is a guide hole 434 in the middle of the left end of the limit tube 433, and the right end is an open mechanism. The upper right end of the connecting rod 49 is movably sleeved in the guide hole. The right side of the upper end of the connecting rod 49 is welded to the middle of the left side of the limit ball 43. The spring 431 is movably sleeved on the outer part of the connecting rod 49 between the inner sides of the limit tube 433 and the limit ball 432 (the outer diameter of the spring is greater than the inner diameter of the guide hole). The limit ball 432 and the positioning hole 48 in the middle of the left end of the guide tube 42 are in the same plane. The diameter of the limit ball 432 is greater than the inner diameter of the positioning hole 48. The right end of the limit ball 432 is located inside the left end of the positioning hole 48. The upper outer end of the limit tube 433 is welded to the middle of the inner upper left end of the fixed disk 41.

[0019] Figure 1 , 2 As shown in Figs. 2 and 3, on both sides of the fixture plate of the fixture plate mechanism, a positioning rod 10 is vertically welded separately at the lower middle part. The height of the positioning rod 10 is less than the height of the guide tube 42, and the outer diameter of the positioning rod 10 is slightly smaller than the inner diameter of the guide tube 42 (0.3 mm). The input terminals 1 and 2 of the power supply module W1 and the two poles of the AC 220V power supply are respectively connected by wires. The power output terminals 3 and 4 of the power supply module W1, the power input terminal of the control circuit relay K1 control power input terminal and the negative power input terminal of the relay K1, and the power input terminals 1 and 2 of the two sets of photoelectric switches W2 are respectively connected by wires. The signal output terminal 3 of the two sets of photoelectric switches W2 and the positive power input terminal of the control circuit relay K1 signal input terminal are connected by wires. The 380V power supply and the three control power input terminals of the DC electromagnetic contactor K2 of the control circuit are connected by wires. The control power output terminal of the control circuit, the three normally closed contact terminals of the DC electromagnetic contactor K2, and the total power input terminal M of the control fixture plate mechanism are connected by wires.

[0020] Figure 1 , 2As shown in FIGS. 2 and 3, when fixing the new fixture plate, the positioning rods 10 on both sides of the fixture plate are respectively inserted into the upper middle parts of the support seats of the left and right end power output discs of the fixture plate mechanism in the guide tubes 42 of the fixed discs. When inserting, the downward moving positioning rod will push the limit ball 432 towards the outer end, and the upper end of the connecting rod 49 compresses the spring 431 and moves towards the left end. In this way, the positioning rod 10 can be vertically inserted into the guide tube 42. Then, as in the prior art, the staff connects the two sides of the fixture plate and the power output discs of the two sets of motor reduction devices through bolts 12. Specifically, a rectangular fixing groove is reserved at the front and rear inner sides of the support seat of the power output disc (the length margin at the front and rear is mainly to facilitate the lower end of the bolt head to be sleeved into the fixing groove and to move the bolt within a certain range front and back, so as to facilitate the upper end of the bolt to align with the fixing holes at the lower parts of the front and rear sides of the left and right ends of the fixture plate). The two bolts 12 are respectively sleeved upwards into the fixing holes at the lower parts of the front and rear sides of the left and right ends of the fixture plate through the fixing grooves 11 at the front and rear inner sides of the support seat of the power output disc, and the upper part of the bolt is screwed into the nut to fix the fixture plate and the power output disc. After the 220V power supply enters the power input end of the power module W1, the stable DC 12V power supply output from pins 3 and 4 of the power module W1 enters the power input ends of the control circuit and the photoelectric switch W2. When replacing other fixture plates later, the staff can insert the exhaust pipes of the two sets of pneumatic plug male heads 1 into the front sides of the two sets of pneumatic plug female heads 2 respectively and open the valve of the air compressor. In this way, the compressed air will enter the inside through the right end of the guide tube 42, and the compressed gas will push the piston 45 to drive the connecting rod 49 to move towards the left outer end. The connecting rod 49 overcomes the elastic force of the spring 431 and drives the limit ball 432 to move towards the left outer end. In this way, the right end of the limit ball 432 is separated from the positioning hole 48 of the guide tube. Since there is no limit of the limit ball on the positioning rod, it is convenient to remove the fixture plate that needs to be removed. After removing the two sets of pneumatic plug male heads, due to the absence of pressure, the spring will push the limit ball 432 towards the right end, and the limit ball will enter the positioning hole 48 of the guide tube 42 again, laying a foundation for the next limit fixation and fixing of the plate.

[0021] Figure 1 、 2As shown in Figure 3, in actual situations, when the exhaust pipes of the two sets of pneumatic male connectors 1 are respectively inserted into the front ends of the two sets of pneumatic female connectors 2, the upper ends of the detection heads of one or two photoelectric switches W2 are unobstructed, and the 3-pin output of one or two photoelectric switches W2 enters the positive power input terminal of the relay K1. The relay K1 is energized to attract its control power input terminal and the normally open contact terminal to close. In this way, the DC electromagnetic contactor K2 is energized to work, and its control power input terminal and the normally closed contact terminal are open, and the total power input terminal M of the fixture plate mechanism will not When the exhaust pipes of the two sets of pneumatic male connectors 1 are respectively inserted into the front ends of the other two sets of pneumatic female connectors 2, the upper ends of the detection heads of the two photoelectric switches W2 are blocked, and the 3-pin outputs of the two photoelectric switches W2 stop being high-level and enter the positive power input end of the relay K1. When the relay K1 loses power, it no longer attracts its control power input end and the normally open contact end, and thus the DC electromagnetic contactor K2 loses power and no longer works, and its control power input end and the normally closed contact end are closed. Thus, the main power input end M of the fixture plate mechanism will be powered and work. According to the above, when the new type replaces different fixture plates, the positioning rods 10 on the middle of both sides of the lower end of the fixture plate are inserted into the guide tube for fixation, and the exhaust pipes of the two sets of pneumatic male connectors are respectively inserted into the other two sets of pneumatic female connectors, and then the main power input end of the fixture plate mechanism is controlled to be powered and work, thereby ensuring as much as possible that the fixture plate will not move or shake in the circumferential direction when working. Relay K1 is a DC12V relay; DC electromagnetic contactor K2 is model CJX2H; power module W1 is a finished AC 220V to DC 12V power module; photoelectric switch W2 is an infrared photoelectric switch model E18-D50NK, which has two power input terminals and a signal output terminal. When the infrared beam emitted by its detection head is blocked and received by the receiving head parallel to the transmitting head, the signal output terminal does not output power; otherwise, power is output. The housing of the infrared photoelectric switch contains a distance adjustment knob. Adjusting it to the left shortens the detection distance, and adjusting it to the left increases the detection distance (adjusted to 8 cm in this embodiment).

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0023] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture plate fixing device for supporting a fixture plate mechanism, comprising an air compressor, a pneumatic plug male head, a pneumatic plug female head, and an optoelectronic switch, characterized in that, It also has a control circuit and a fixed limit mechanism; there are at least two sets of the fixed limit mechanism and pneumatic plug male connectors respectively. Each set of the fixed limit mechanism includes a fixed disk, a guide tube, a limit tube device, a cylinder tube, and a piston. The cylinder tube is horizontally installed at the lower part inside the fixed disk, and an air guide tube is installed at the outer end of one side of the cylinder tube; the other side of the cylinder tube is an open structure, the piston is movably sleeved inside the other side of the cylinder tube, a connecting rod is installed at the outer end of one side of the piston, and the lower end of the guide tube is vertically installed inside the fixed disk; there is a positioning hole at one side end of the middle part of the guide tube, and the fixed limit mechanism and the upper end of the connecting rod are installed together; the lower ends of the fixed disks of the two sets of fixed limit mechanisms are respectively installed at the upper ends of the support seats of the power output disks on both sides of the fixture plate mechanism, wherein the rear ends of the two sets of pneumatic plug female connectors and the outer sides of the two air guide tubes are respectively installed together, and the other two sets of pneumatic plug female connectors are installed at the rear part of the housing on one side end of the fixture plate mechanism. The exhaust pipe of the air compressor and the intake pipes of the two sets of pneumatic plug male connectors are connected through hoses; a fixed plate is installed at the rear side of the housing, and the two sets of photoelectric switches are respectively installed on both sides of the fixed plate; the control circuit is installed inside the electric control box, the signal output ends of the two sets of photoelectric switches and the signal input end of the control circuit are electrically connected, and the control power output end of the control circuit and the total power input end of the control fixture plate mechanism are electrically connected.

2. The fixture plate fixing device used in conjunction with the fixture plate mechanism according to claim 1, characterized in that, After the exhaust pipes of the two pneumatic plug male connectors are respectively inserted outside the front ends of the other two sets of pneumatic plug female connectors, the detection heads of the two sets of photoelectric switches are respectively located at the lower ends of the two pneumatic plug male connectors.

3. A fixture plate fixing device for use in conjunction with the fixture plate mechanism according to claim 1, characterized in that, The control circuit includes a relay and a DC electromagnetic contactor which are electrically connected. The normally open contact end of the relay is connected to the positive power input end of the DC electromagnetic contactor, and the negative power input end of the relay is connected to the negative power input end of the DC electromagnetic contactor.

4. A fixture plate fixing device for use in conjunction with the fixture plate mechanism according to claim 1, characterized in that, The limit tube device includes a limit tube, a spring, and a limit ball. One side end of the limit tube has a guide hole and the other side end is an open structure. The upper end of the connecting rod is movably sleeved inside the guide hole, the side part of the upper end of the connecting rod and one side of the limit ball are installed together, and the spring is movably sleeved outside the upper end of the connecting rod.

5. A fixture plate fixing device for use in conjunction with the fixture plate mechanism according to claim 4, characterized in that, The limit ball and the positioning hole at the inner side end of the guide tube are in the same plane. The diameter of the limit ball is larger than the inner diameter of the positioning hole, and the outer part of the upper end of the limit tube is installed at one side of the upper part inside the fixed disk.

6. A fixture plate fixing device for use in conjunction with the fixture plate mechanism according to claim 4, characterized in that, Positioning rods are respectively installed at the lower parts in the middle of both sides of the fixture plate of the fixture plate mechanism. The height of the positioning rod is less than the height of the guide tube, and the outer diameter of the positioning rod is less than the inner diameter of the guide tube.

Images